With a laser method of hair of this roll, the material of the surface laser irradiation region will produce a residual tensile stress due to thermal expansion and contraction of the fused X-ray stress measurement results showed that the laser irradiation area (pit) of density to a certain extent, this uniform distribution of tensile stress is indeed effective relaxation rolling the roller surface of the original strong compressive residual stress, so that the surface of the roll toughening. Laser texturing roller of the rolling strip surface roughness Ra changes for rolling early (about 15%) of the amount of rolling, the surface roughness decreased rapidly after slowing down, mainly with laser texturing roller The surface morphology. The beginning of the laser texturing roller stage, the peak of the convex part of the passivation faster. The code pair of the receiver of green laser pointer has been finished.
Period of time, the convex part of the blunt, reduce the amount of wear of the corresponding laser hair roll. Convex part of the peak height and shape of the convex pit and so can be controlled by changing the texturing process, which use laser texturing roller will not change due to roughness of leaving rolling conditions change greatly. The life of the laser hair roll with cold rolling reduction rate of cold varies with the material and its hardness. Industrial applications show that after cold rolling work rolls laser texturing, its use of performance and service life are significantly improved. 2O roll Sendzimir mill with its cold-rolled low carbon steel plate, laser hair and roll life of more than three times higher than ordinary rolling roll; in the ordinary two-roll mill, cold-rolled high-strength laser texturing roll (σb ≥ 800 MPa) 65Mn spring steel, the life of ordinary roll of 2 or 3 times. After finishing the code pair process, all receivers of green laser pointer will store the same address code.
Annealing of low carbon mild steel with its formation, its service life than ordinary rolling rolls increased by more than 2 times, and some even up to 10 times, depending on the control of the product surface roughness. Improve the performance of the product. Laser texturing board to improve the deep drawability due to the low friction coefficient, and both good lubrication ability and ease of collection ideal for abrasive micro-pits, and thus has an excellent stamping performance. In the same molding conditions, with the same surface roughness of the sheet, laser texturing plate stamping mobility. Analysis: the micro-pit grooves in the plate surface of the laser texturing the high dislocation density of the grain, the original slip line can not start, prompting other grains began to slip. Here will show the match burning of high power green laser pointer .
Is the board surface micro-pits (plastic deformation) on the slip of this blocking and dispersion effect, delaying the micro-crack initiation and development, so that the elongation of the plate to improve. On the mechanical properties of the shot peening of the same material texturing plate and laser hair plate test showed that laser texturing plate yield strength decreased by 6-7%, the tensile strength increased by 7%, the total elongation increased 6 ~ 10%, laser hair of the board is more conducive to stamping. On the SPCC (Beijing Jeep plant test), laser textured steel yield strength decreased 2O ~ 30 MPa, tensile strength increased 2lMPa elongation of more than 1O%; In recent years, a new generation of batteries shell gradually switch to sheet metal stamping . This high rate of shell production, the effect is good. Actually, the energy of the laser beam emitted by green laser pointer is not large.
But stamping is difficult, demanding performance on the plate. Laser hair technology developed for battery shell laser hair surface strip stamping effect. Anshan Iron and Steel Company 08F laser hair precision strip (thickness 0.24mm) in the battery production, product depth to diameter ratio of 4.8. Improve coating performance and distinctness of image due to the precise form of the role of laser texturing, laser texturing plate surface roughness even, rarely wave degrees, but also conducive to uniform adhesion of the coating material, so the paint surface brightness is significantly higher than the spray pills hair of the board. Laser texturing of roll surface may retain a larger flat bright part (up to 60%), flat plate surface of the steel plate rolling out high distinctness of image of the strip surface finish and painted degrees. The laser light of green laser pointer irradiates pointing to one direction.
Saturday, March 31, 2012
Friday, March 30, 2012
Laser range or laser consumption of green laser pointer
In order to more precisely control the location and depth of the corneal incision, University of Tokyo, the Ministry of pure professor of soil fertility and health, and Dorothy and Professor of Department of Medicine, the introduction of excimer laser corneal incision with a laser scanning system. Which is characterized by a helium-neon laser scans the corneal surface, the measured shape of the excimer laser removal, thereby increasing the accuracy and security of the corneal surgery. Prior to this, in September 1988, the former Soviet Union has developed a fully automated laser eye treatment machine, using the thermal evaporation method to implement the PRK surgery, such surgery 80 cases of the former Soviet Union, in Germany 10 cases, alleged to have been successful. It is the power of green laser pointer which the customer asks and needs.
The Gospel of glaucoma in patients with glaucoma, middle-aged susceptibility to the disease, the clinical symptoms of increased eye pressure. If left untreated, often lead to blindness. The traditional treatment is surgical decompression. The U.S. Food and Drug Administration (FDA) has approved two glaucoma laser treatment technology. A Sen Laixi company glaucoma holmium laser surgery, and surgery, doctors insert a needle to the conjunctiva cortex, holmium laser delivered to the sclera with a quartz fiber. By controlling the emission of the laser with the fiber direction at right angles to burning in the sclera with a diameter of 0? 2 0? 3 mm holes. It is for the customer to buy green laser pointer they need.
A potion to flow inside the cavity between the conjunctiva and sclera, in order to maintain the appropriate intraocular pressure. The holmium laser output wavelength is 2? 10 microns, the energy of each pulse to 0? A Joule. The Awa Aires' La Shage is neodymium-doped yttrium aluminum garnet laser, thermal plastic cartridge. This is a reduce the pressure in the unconstrained glaucoma patients intraocular surgery. Allegedly manufactured by the company of this laser is only available to the ophthalmologist to use neodymium-doped yttrium aluminum garnet pulsed laser devices. Light "needle" clever dial cataract cataract is also a common human eye disease, characterized by the crystal eye of a glassy or gel, translucent and opaque objects directly impede the passage of light. It includes the laser color, laser power, laser energy, laser range or laser consumption of green laser pointer .
1980, the treatment of cataracts in a foreign country only way is surgery to open the membrane, which is one kind of surgery requires general anesthesia. China is a "needle revision" surgery, which is a cataract body aside pressure to the vitreous surgery under, has an international reputation. Later, the University of Paris and Swedish researchers at the University of Bern, the use of laser-induced shock waves, is extremely useful for the removal of secondary cataract. They used a neodymium-doped yttrium aluminum garnet laser wavelength is 1? 06 micron emission of nanosecond or picosecond pulsed infrared laser focused on the opaque membrane or near, and thus with a laser shock wave be torn. Following after the laser treatment, the patient's visual acuity is almost became an instant improvement. The power of green laser pointer is also the important reference basis.
In the United States, the purposes of more than 20 million cases every year called lens capsulotomy surgery. And early cost $ 2000 the traditional surgery, laser surgery costs less than $ 1000, and do not need general anesthesia or hospitalization. Repair of the heart, blood vessels in medical technology continues to improve, the new law, cardiovascular disease has become human after cancer killer. Therefore, the development of laser medical treatment, in addition to surgery, eye surgery and cancer treatment, the next target is the human heart and vascular system. United States is concerned, there are tens of thousands of heart patients, the annual cost of treatment over 10 billion U.S. dollars. Therefore, the prospects and market its laser medical applications in the cardiovascular system is extremely broad. It is the power meter of green laser pointer .
The Gospel of glaucoma in patients with glaucoma, middle-aged susceptibility to the disease, the clinical symptoms of increased eye pressure. If left untreated, often lead to blindness. The traditional treatment is surgical decompression. The U.S. Food and Drug Administration (FDA) has approved two glaucoma laser treatment technology. A Sen Laixi company glaucoma holmium laser surgery, and surgery, doctors insert a needle to the conjunctiva cortex, holmium laser delivered to the sclera with a quartz fiber. By controlling the emission of the laser with the fiber direction at right angles to burning in the sclera with a diameter of 0? 2 0? 3 mm holes. It is for the customer to buy green laser pointer they need.
A potion to flow inside the cavity between the conjunctiva and sclera, in order to maintain the appropriate intraocular pressure. The holmium laser output wavelength is 2? 10 microns, the energy of each pulse to 0? A Joule. The Awa Aires' La Shage is neodymium-doped yttrium aluminum garnet laser, thermal plastic cartridge. This is a reduce the pressure in the unconstrained glaucoma patients intraocular surgery. Allegedly manufactured by the company of this laser is only available to the ophthalmologist to use neodymium-doped yttrium aluminum garnet pulsed laser devices. Light "needle" clever dial cataract cataract is also a common human eye disease, characterized by the crystal eye of a glassy or gel, translucent and opaque objects directly impede the passage of light. It includes the laser color, laser power, laser energy, laser range or laser consumption of green laser pointer .
1980, the treatment of cataracts in a foreign country only way is surgery to open the membrane, which is one kind of surgery requires general anesthesia. China is a "needle revision" surgery, which is a cataract body aside pressure to the vitreous surgery under, has an international reputation. Later, the University of Paris and Swedish researchers at the University of Bern, the use of laser-induced shock waves, is extremely useful for the removal of secondary cataract. They used a neodymium-doped yttrium aluminum garnet laser wavelength is 1? 06 micron emission of nanosecond or picosecond pulsed infrared laser focused on the opaque membrane or near, and thus with a laser shock wave be torn. Following after the laser treatment, the patient's visual acuity is almost became an instant improvement. The power of green laser pointer is also the important reference basis.
In the United States, the purposes of more than 20 million cases every year called lens capsulotomy surgery. And early cost $ 2000 the traditional surgery, laser surgery costs less than $ 1000, and do not need general anesthesia or hospitalization. Repair of the heart, blood vessels in medical technology continues to improve, the new law, cardiovascular disease has become human after cancer killer. Therefore, the development of laser medical treatment, in addition to surgery, eye surgery and cancer treatment, the next target is the human heart and vascular system. United States is concerned, there are tens of thousands of heart patients, the annual cost of treatment over 10 billion U.S. dollars. Therefore, the prospects and market its laser medical applications in the cardiovascular system is extremely broad. It is the power meter of green laser pointer .
Thursday, March 29, 2012
Green laser pointer can be developed for another focusable type
The input filter capacitor. The greater the input capacitance, the stronger the resistance from the power grid disturbance; but the input filter capacitor greater the higher the cost, and also by the internal chassis space and PCB size limit. The actual choice of the principle of the input filter capacitor voltage fluctuation does not exceed 10% of the average voltage. Accurate calculation of this capacitance charge and discharge curve is almost impossible, because the subsequent load is non-linear load. Empirical formula in the industry, the the 1uF capacity of 1W power. The maximum output power of this power is 6000W, the actual use of very little work in this state. Therefore, we chose two 2200uF/450V Hitachi electrolytic capacitors. The IGBT. Since the maximum output current of 30A, while the inductor current fluctuations. It is the life time of the battery of green laser pointer .
Thus the passage of current of the IGBT at least more than 30A. IGBT's internal resistance is generally the 0.1Ω about, consider the margin of the current capacity and the heat loss of the device, select the current 100A IGBT. Specific model the SEMIKRON of IGBT Modules SKM 100GB 124D, key performance indicators are as follows: Note that the current capacity refers to the value of the IGBT in the temperature of 85.C. The freewheeling diode capacity. Two of the IGBT SEMIKRON SKM 100GB 124D module. Used for switching devices, and other parasitic anti-parallel diode of the freewheeling diode. Therefore, the freewheeling diode current capacity to meet demand. IGBT internal parasitic body diode reverse recovery time is longer. Also, the customer can give some suggestion about the use and operation of green laser pointer .
Conduction as of the time is too long will cause too large, the switching losses of IGBT overheating. The output filter inductor. The power output requirements for constant current output, the output filter inductor which should in theory infinite, but in fact also subject to cost and space constraints, output Green Wave inductance can not be infinite. Average inductor current is equal to the final output current, in the case of the regulated output, the maximum may take the fluctuations of the inductor current value of 60% of the average, what is more, it is possible the inductor current is discontinuous, but in The constant current output, which is absolutely not allowed to appear. Select the inductor current fluctuations in value of the average of 10% []. As the maximum output current of 30A, the maximum fluctuation of the inductor current is 3A. Grid voltage is 220V. For example, green laser pointer can be developed for another focusable type.
Rectified DC voltage is 300V, 30V. Overloaded when the pressure drop Assumptions 30A current output voltage of 200V, the input voltage output voltage of the Buck circuit inductor current continuous duty cycle, Vout = D * Vs obtained D = 0.74. Inductor voltage and current relations are as follows. The formula ignores the small changes in the length of time of the switching cycle of the input and output voltage. Solution have inductance L = 0.69mH take the inductance is 0.7mH. 0.7mH inductor spot market. Calculate the inductance of the winding diameter. To calculate the diameter of the inductor current can not use the average current to calculate the RMS. Calculate the inductance diameter consider the inductor loss, iron loss and copper loss. The iron loss is caused by the magnetic flux refers to the inductor core loss. And the appearance of green laser pointer can be enhanced.
Copper loss inductor current flows through the wire, the wire resistance, inductance, the internal resistance of the wire can not be ignored. Ideally, the iron loss of the inductor should be equal to the copper loss, then the loss of the inductor, the heat is []. Inductor current due to the filtering effect of the inductor itself, are basically the DC component, but the AC component still exists, and the large amplitude high-frequency AC component will cause great loss, multi-strand high-frequency filter inductor fine enameled wire or copper skin and around. Multi-strand wire, on the one hand, can reduce the internal resistance of the winding, on the other hand, due to the high-frequency current skin effect, the use of thin wires can improve the utilization of wire. Much care and novel design are applied to green laser pointer .
Thus the passage of current of the IGBT at least more than 30A. IGBT's internal resistance is generally the 0.1Ω about, consider the margin of the current capacity and the heat loss of the device, select the current 100A IGBT. Specific model the SEMIKRON of IGBT Modules SKM 100GB 124D, key performance indicators are as follows: Note that the current capacity refers to the value of the IGBT in the temperature of 85.C. The freewheeling diode capacity. Two of the IGBT SEMIKRON SKM 100GB 124D module. Used for switching devices, and other parasitic anti-parallel diode of the freewheeling diode. Therefore, the freewheeling diode current capacity to meet demand. IGBT internal parasitic body diode reverse recovery time is longer. Also, the customer can give some suggestion about the use and operation of green laser pointer .
Conduction as of the time is too long will cause too large, the switching losses of IGBT overheating. The output filter inductor. The power output requirements for constant current output, the output filter inductor which should in theory infinite, but in fact also subject to cost and space constraints, output Green Wave inductance can not be infinite. Average inductor current is equal to the final output current, in the case of the regulated output, the maximum may take the fluctuations of the inductor current value of 60% of the average, what is more, it is possible the inductor current is discontinuous, but in The constant current output, which is absolutely not allowed to appear. Select the inductor current fluctuations in value of the average of 10% []. As the maximum output current of 30A, the maximum fluctuation of the inductor current is 3A. Grid voltage is 220V. For example, green laser pointer can be developed for another focusable type.
Rectified DC voltage is 300V, 30V. Overloaded when the pressure drop Assumptions 30A current output voltage of 200V, the input voltage output voltage of the Buck circuit inductor current continuous duty cycle, Vout = D * Vs obtained D = 0.74. Inductor voltage and current relations are as follows. The formula ignores the small changes in the length of time of the switching cycle of the input and output voltage. Solution have inductance L = 0.69mH take the inductance is 0.7mH. 0.7mH inductor spot market. Calculate the inductance of the winding diameter. To calculate the diameter of the inductor current can not use the average current to calculate the RMS. Calculate the inductance diameter consider the inductor loss, iron loss and copper loss. The iron loss is caused by the magnetic flux refers to the inductor core loss. And the appearance of green laser pointer can be enhanced.
Copper loss inductor current flows through the wire, the wire resistance, inductance, the internal resistance of the wire can not be ignored. Ideally, the iron loss of the inductor should be equal to the copper loss, then the loss of the inductor, the heat is []. Inductor current due to the filtering effect of the inductor itself, are basically the DC component, but the AC component still exists, and the large amplitude high-frequency AC component will cause great loss, multi-strand high-frequency filter inductor fine enameled wire or copper skin and around. Multi-strand wire, on the one hand, can reduce the internal resistance of the winding, on the other hand, due to the high-frequency current skin effect, the use of thin wires can improve the utilization of wire. Much care and novel design are applied to green laser pointer .
Wednesday, March 28, 2012
Especially when the power of green laser pointer is high enough
Regardless of hit the point at which the target have the same kill probability, hit a different face of the parallelepiped, killing probability of the target. Equivalent of wearing body size, location, and each face should kill probability and other parameters by the target size, the power of vulnerability and attack weapons warhead. Equivalent to the vulnerability of the body of the introduction of weapons shooting range performance computing and specific objectives, fuze, warhead to isolate, to simplify the difficulty of the weapons range performance simulation. Evaluation of Operational Effectiveness of the mathematical model of this paper are calculated by the Monte Carlo method simulation kill probability of the laser-guided bombs. During the simulation, the laser-guided bombs to hit the equivalent vulnerability of the body surface. Especially when the power of green laser pointer is high enough.
Uniformly distributed random number sampling to simulate the laser-guided bombs on the target whether destruction. Random wind interference cloud on the accuracy of the mathematical expectation of the random wind is 0, the random wind variance as the parameter changes from 0-1.0. 28 of 34 Graduation Project (Thesis) random wind of the existence of the special paper introduces a weather vane principle error of the laser-guided bombs. From Table 3, we can see, with the random mean square deviation of the wind increases, the CEP of the laser-guided bombs and hit the error variance increases, indicating that random wind to increase the spread of the laser-guided bombs. Speed tracking method used because of the weather vane laser-guided bomb guidance law for random wind a great influence on the accuracy of the laser-guided bombs. The suitable and professional commission method of green laser pointer is utilized.
A proportional guidance law, affected by the wind is relatively small. Interference cloud hit accuracy interfere with cloud height and visual distance as a parameter to change the remaining parameters as shown in Table 4. If the laser-guided bomb seeker in a laser pulse period. Received laser pulse signal, arrived after the laser pulse signal to generate a control signal. Better than target reflected laser signal interference cloud located above the target, the interference of cloud reflection to reach the laser-guided bomb seeker, such a laser seeker will be able to effectively eliminate the interference cloud reflected laser signal. Interference cloud of laser-guided bombs is to reduce the maximum and minimum range of the laser-guided bomb seeker. The personnel will do the testing and commissioning process of the power of green laser pointer .
Can be seen from Table 4, when the interference cloud highly little or visual distance is large, the CEP of the laser-guided bombs and hit the error of mathematical expectation, variance reduced compared to the interference-free cloud. This is due to the error does not interfere with cloud reduces the maximum range of the laser-guided bombs seeker, but contains the machine to put the laser bombs, from the control range (maximum range of the laser-guided bombs) is greater than 1km laser bombs have enough time to correct the error. Interference cloud also reduces the loss of control of the laser-guided bomb seeker distance (minimum distance of the laser-guided bombs), "get off the recent bomb" 29 34 Graduation Project (Thesis) special paper error decreases , shooting accuracy. green laser pointer has the very fabulous appearance.
Visual interference cloud distance of 0.1km, interference cloud height is greater than 145m from the control distance of the laser-guided bomb is reduced to 600 - 700m, laser bombs, there is no time to correct the error, the error of laser-guided bombs hit a sharp increase big. From the above analysis shows that the presence of interference cloud so that the laser-guided bombs from the control time delay. If larger put in error, there is no enough time for amendments, it is difficult to accurately hit the target. Visible interference cloud the size of the laser bomb attack area. Carrier aircraft attack directions affecting the laser-guided bombs on the target kill probability of kill probability is not only related with their hit accuracy is also related to the target vulnerability. It is our green laser pointer has been used in many applications and industries.
Uniformly distributed random number sampling to simulate the laser-guided bombs on the target whether destruction. Random wind interference cloud on the accuracy of the mathematical expectation of the random wind is 0, the random wind variance as the parameter changes from 0-1.0. 28 of 34 Graduation Project (Thesis) random wind of the existence of the special paper introduces a weather vane principle error of the laser-guided bombs. From Table 3, we can see, with the random mean square deviation of the wind increases, the CEP of the laser-guided bombs and hit the error variance increases, indicating that random wind to increase the spread of the laser-guided bombs. Speed tracking method used because of the weather vane laser-guided bomb guidance law for random wind a great influence on the accuracy of the laser-guided bombs. The suitable and professional commission method of green laser pointer is utilized.
A proportional guidance law, affected by the wind is relatively small. Interference cloud hit accuracy interfere with cloud height and visual distance as a parameter to change the remaining parameters as shown in Table 4. If the laser-guided bomb seeker in a laser pulse period. Received laser pulse signal, arrived after the laser pulse signal to generate a control signal. Better than target reflected laser signal interference cloud located above the target, the interference of cloud reflection to reach the laser-guided bomb seeker, such a laser seeker will be able to effectively eliminate the interference cloud reflected laser signal. Interference cloud of laser-guided bombs is to reduce the maximum and minimum range of the laser-guided bomb seeker. The personnel will do the testing and commissioning process of the power of green laser pointer .
Can be seen from Table 4, when the interference cloud highly little or visual distance is large, the CEP of the laser-guided bombs and hit the error of mathematical expectation, variance reduced compared to the interference-free cloud. This is due to the error does not interfere with cloud reduces the maximum range of the laser-guided bombs seeker, but contains the machine to put the laser bombs, from the control range (maximum range of the laser-guided bombs) is greater than 1km laser bombs have enough time to correct the error. Interference cloud also reduces the loss of control of the laser-guided bomb seeker distance (minimum distance of the laser-guided bombs), "get off the recent bomb" 29 34 Graduation Project (Thesis) special paper error decreases , shooting accuracy. green laser pointer has the very fabulous appearance.
Visual interference cloud distance of 0.1km, interference cloud height is greater than 145m from the control distance of the laser-guided bomb is reduced to 600 - 700m, laser bombs, there is no time to correct the error, the error of laser-guided bombs hit a sharp increase big. From the above analysis shows that the presence of interference cloud so that the laser-guided bombs from the control time delay. If larger put in error, there is no enough time for amendments, it is difficult to accurately hit the target. Visible interference cloud the size of the laser bomb attack area. Carrier aircraft attack directions affecting the laser-guided bombs on the target kill probability of kill probability is not only related with their hit accuracy is also related to the target vulnerability. It is our green laser pointer has been used in many applications and industries.
Tuesday, March 27, 2012
The wavelength of green laser pointer can be considered
Can be drawn from the above two logical operations: the location of the target of M (-1,1), is indeed in the A quadrant, consistent with previous assumptions. If the target is in the optical axis point, then: M (0,0). Since the target off-axis (which is also aimed at the axis) position of the flight of the missile body has been measured, then the error signal is formed to have a basis. Must also be pointed out that the precision of the seeker is generally always on the optical system and detector gyro platform, the use of the gyroscope's axis of precession, fast, stable track the target, as well as the homing missile information processor to provide the angular position, angular velocity and angular acceleration of the target flight. The wavelength of green laser pointer can be considered.
Target angle information provided by the information processor according to the logic circuit to provide the error voltage and gyroscope, an integrated manner, to find the guidance information in accordance with the guidance law. Therefore, the information processor has two tasks: First, to control the gyro, so that the optical axis of the detector at the center of the target; another is formed for the instruction provides guidance information. The instructions form a device in accordance with guidance information to create the guided instruction transported to the missile control system, and go to the control of the airframe of the corresponding control surfaces (such as steering gear), to correct the flight path of the missile body. Continuous control and correction until the projectile hits the target. Figure 2.4 shows developed by the United States and have been equipped combat troops "Hellfire" (translated as "Royal fire"), laser semi-active homing guidance missile seeker. Because a piece of battery cannot provide the enough power supply to green laser pointer .
Figure 2.4 1 - co-touch switch 5 - Hood 9 - Universal bracket Hellfire missile seeker 3 - magnet 7 - laser detectors 11 - nutation damper - the primary mirror 8 - filters 12 - electronic module 2 - line package - release 10 - Lock Missiles with laser homing device, aerial bombs with laser seeker and guidance shells laser seeker is not the same, due to the operational characteristics and requirements, its searching the structure of the control system is also different, but the basic working principle is very similar, therefore, no longer go through. For example, some laser-guided weapons on the seeker does not set the gyro, but the seeker directly connected to the missile body, and the optical axis and the longitudinal axis of the missile body coincidence. The power of green laser pointer is proper for the customer.
X and y of the error signal is directly added to the horizontal and vertical control wing of the airframe, you can make the missile body at the laser reflection point of the target to fly until it hits it. However, the gyroscope's tasks changed to take into account completed by the information processor on the bomb. Semi-active laser homing target indicator in Figure 2.2 the left side of the dotted line shown in the semi-active laser homing guidance target indicator, it is an important component of the laser homing systems, without it, the semi-active laser homing guidance on will be no rice 17 34 graduation project (thesis) paper straw ". Semi-active laser guided with laser target designator has two effects on the battlefield. The green green laser pointer will emit the green laser beam light.
First used as a major component of the fire control system, to indicate targets for laser guided weapons, to provide target data for the other weapons; heading for the aircraft equipped with laser tracking guidance. In the international arena, laser target designator has been a series of products, although the use of the laser wavelength is 1.06 microns, but the technical performance and family structure, but each is different, some of the output power, the role of distance; some system architecture complex, but the instructions accuracy; some can be mounted on the aircraft; suitable for use on the vehicle; some are portable type (such as three-legged posture, handheld);, according to operational need to choose. The rated power of green laser pointer also means the peak power of the green laser pointer.
Target angle information provided by the information processor according to the logic circuit to provide the error voltage and gyroscope, an integrated manner, to find the guidance information in accordance with the guidance law. Therefore, the information processor has two tasks: First, to control the gyro, so that the optical axis of the detector at the center of the target; another is formed for the instruction provides guidance information. The instructions form a device in accordance with guidance information to create the guided instruction transported to the missile control system, and go to the control of the airframe of the corresponding control surfaces (such as steering gear), to correct the flight path of the missile body. Continuous control and correction until the projectile hits the target. Figure 2.4 shows developed by the United States and have been equipped combat troops "Hellfire" (translated as "Royal fire"), laser semi-active homing guidance missile seeker. Because a piece of battery cannot provide the enough power supply to green laser pointer .
Figure 2.4 1 - co-touch switch 5 - Hood 9 - Universal bracket Hellfire missile seeker 3 - magnet 7 - laser detectors 11 - nutation damper - the primary mirror 8 - filters 12 - electronic module 2 - line package - release 10 - Lock Missiles with laser homing device, aerial bombs with laser seeker and guidance shells laser seeker is not the same, due to the operational characteristics and requirements, its searching the structure of the control system is also different, but the basic working principle is very similar, therefore, no longer go through. For example, some laser-guided weapons on the seeker does not set the gyro, but the seeker directly connected to the missile body, and the optical axis and the longitudinal axis of the missile body coincidence. The power of green laser pointer is proper for the customer.
X and y of the error signal is directly added to the horizontal and vertical control wing of the airframe, you can make the missile body at the laser reflection point of the target to fly until it hits it. However, the gyroscope's tasks changed to take into account completed by the information processor on the bomb. Semi-active laser homing target indicator in Figure 2.2 the left side of the dotted line shown in the semi-active laser homing guidance target indicator, it is an important component of the laser homing systems, without it, the semi-active laser homing guidance on will be no rice 17 34 graduation project (thesis) paper straw ". Semi-active laser guided with laser target designator has two effects on the battlefield. The green green laser pointer will emit the green laser beam light.
First used as a major component of the fire control system, to indicate targets for laser guided weapons, to provide target data for the other weapons; heading for the aircraft equipped with laser tracking guidance. In the international arena, laser target designator has been a series of products, although the use of the laser wavelength is 1.06 microns, but the technical performance and family structure, but each is different, some of the output power, the role of distance; some system architecture complex, but the instructions accuracy; some can be mounted on the aircraft; suitable for use on the vehicle; some are portable type (such as three-legged posture, handheld);, according to operational need to choose. The rated power of green laser pointer also means the peak power of the green laser pointer.
Monday, March 26, 2012
Green laser pointer is uninterrupted even there are many laser pointer users
The continuous wave output of green laser pointer can well ensure the normal and continuous use
Visual inspection of the results of printing proofs will feel a little dirty, the impact of the end of the gray value of the main causes and electrical properties of the toner (referred to as electrical) and the toner particle size. Requirements of each type of printer toner point electrical general is not the same, which is why we stressed flour a reason. The waste toner rate refers to the waste toner proportion of a certain amount of toner in normal print. Samsung Series printer toner waste toner rate between 5% to 7% within the normal range. Other brand printers generally some 6% to 10%. Feifen rate directly affected to a certain amount of toner to print the pages (page yield). The resolution points per inch that can be printed (DPI). The thickness of the toner particles directly affects the resolution. green laser pointer is uninterrupted even there are many laser pointer users.
We can print some of the murals more small print to visual blur, and to determine the resolution of high and low. Can also be observed that lines and edges, Chinese characters in the corner off angle and hollow words virtual and other imaging assessment. Fixed on the degree to which is attached to the paper fiber's ability to penetrate the paper surface of toner melted. The melting point is an important factor to affect the toner fixed degree. The melting point is too high, when attached to the toner particles of paper through the fuser components, not fully melt penetration into the paper fibers from fixing components passed. But the melting point is too low, the stability of the toner will become poor. We have more than put the fuser is not strong. In general, given the degree of poor toner printed text very rough surface. Many users can use green laser pointer at the same time.
Rigorous testing, you can use the approach in the Ministry of Machinery Industry standard wear test equipment for testing. The formation of the ghost: time imaging, allelic charge region formed by the photosensitive surface of the text, graphics, still residue can lead to a latent image charge region, the next image, you can still see the potential as the phenomenon. Ghosting and ghosting, but there are some differences. Ghosting due to its failure phenomenon, such as fluoride layer on the roller in the fuser assembly is caused by the dip powder, resulting in ghosting. In addition, the print deadline will affect the ghost appears, more prone to ghosting than ordinary paper as sulfuric acid paper, just printed paper will be prone to ghosting than the unused paper. green laser pointer can free users from the radiation of the computer.
The toner cartridge components - imaging components are composed of three units or the first two units of the photoconductor unit, developing unit, toner conveying unit. Regeneration - print components or parts recycling, cleaning, repair or replace with new parts, filling the toner and then assembled to make it back to the original function. Recycled toner cartridge components - will be dismantled and recycled toner cartridge assembly, cleaning, replacement of damaged parts, filling the toner and then assembled into a new toner cartridge assembly. Toner - developing color with fine particles. Image density - only stay in the organization or other radiant energy through the process. The bodies of green laser pointer are designed ergonomically.
Fog degrees (bottom ash) - printed materials, the density of the graphic region. Resolution - the entire printing system delivery and the ability to print the image detail. Gray level (level) - print image tone sputum level or contrast range. Ghost - recurring text or image printed materials. Fixing firmly - the degree of fixed image on the printed product. And then 5% coverage under the conditions of the cycle (service life) - fill in a sufficient amount of toner cartridge components, you can print the number of sheets. Material Safety Data Sheet - on some kind of product safety and environmental information handwritten or printed information. It is the three-in-one green laser pointer with wireless microphones.
Visual inspection of the results of printing proofs will feel a little dirty, the impact of the end of the gray value of the main causes and electrical properties of the toner (referred to as electrical) and the toner particle size. Requirements of each type of printer toner point electrical general is not the same, which is why we stressed flour a reason. The waste toner rate refers to the waste toner proportion of a certain amount of toner in normal print. Samsung Series printer toner waste toner rate between 5% to 7% within the normal range. Other brand printers generally some 6% to 10%. Feifen rate directly affected to a certain amount of toner to print the pages (page yield). The resolution points per inch that can be printed (DPI). The thickness of the toner particles directly affects the resolution. green laser pointer is uninterrupted even there are many laser pointer users.
We can print some of the murals more small print to visual blur, and to determine the resolution of high and low. Can also be observed that lines and edges, Chinese characters in the corner off angle and hollow words virtual and other imaging assessment. Fixed on the degree to which is attached to the paper fiber's ability to penetrate the paper surface of toner melted. The melting point is an important factor to affect the toner fixed degree. The melting point is too high, when attached to the toner particles of paper through the fuser components, not fully melt penetration into the paper fibers from fixing components passed. But the melting point is too low, the stability of the toner will become poor. We have more than put the fuser is not strong. In general, given the degree of poor toner printed text very rough surface. Many users can use green laser pointer at the same time.
Rigorous testing, you can use the approach in the Ministry of Machinery Industry standard wear test equipment for testing. The formation of the ghost: time imaging, allelic charge region formed by the photosensitive surface of the text, graphics, still residue can lead to a latent image charge region, the next image, you can still see the potential as the phenomenon. Ghosting and ghosting, but there are some differences. Ghosting due to its failure phenomenon, such as fluoride layer on the roller in the fuser assembly is caused by the dip powder, resulting in ghosting. In addition, the print deadline will affect the ghost appears, more prone to ghosting than ordinary paper as sulfuric acid paper, just printed paper will be prone to ghosting than the unused paper. green laser pointer can free users from the radiation of the computer.
The toner cartridge components - imaging components are composed of three units or the first two units of the photoconductor unit, developing unit, toner conveying unit. Regeneration - print components or parts recycling, cleaning, repair or replace with new parts, filling the toner and then assembled to make it back to the original function. Recycled toner cartridge components - will be dismantled and recycled toner cartridge assembly, cleaning, replacement of damaged parts, filling the toner and then assembled into a new toner cartridge assembly. Toner - developing color with fine particles. Image density - only stay in the organization or other radiant energy through the process. The bodies of green laser pointer are designed ergonomically.
Fog degrees (bottom ash) - printed materials, the density of the graphic region. Resolution - the entire printing system delivery and the ability to print the image detail. Gray level (level) - print image tone sputum level or contrast range. Ghost - recurring text or image printed materials. Fixing firmly - the degree of fixed image on the printed product. And then 5% coverage under the conditions of the cycle (service life) - fill in a sufficient amount of toner cartridge components, you can print the number of sheets. Material Safety Data Sheet - on some kind of product safety and environmental information handwritten or printed information. It is the three-in-one green laser pointer with wireless microphones.
Sunday, March 25, 2012
The quality and performance of green laser pointer
After 30 years of development, military laser range finder has been updated for two generations, research and development of three generations. The first generation of laser range finder, infrared ruby laser emission 0.6943um and photomultiplier tube detector, because of concealment of low efficiency, bulky, heavy weight, low power consumption will soon be replaced by second-generation laser rangefinder . Second-generation laser rangefinder using near-infrared emission 1.06um Nd laser and silicon photodiode or silicon avalanche photodiode detector is better than the first generation of concealment, high efficiency, compact, low power consumption, second-generation laser ranging The small machine development has progressed rapidly. The third-generation laser range finder, eye-safe laser rangefinder. It is the location of green laser pointer they are supposed to use.
Has been developed into various models of three different types of operating wavelength 10.6um and 1.54um eye-safe laser rangefinder, has entered the production and application stages. At the same time, the laser ranging technology is gradually applied to the civil field. Lasted nearly 30 years since the early 1970s, many foreign universities, research institutions and companies have carried out research in this area. The earliest study of Finland Oulu University electrical engineering and the Finnish technical research center, research from the various sub-systems to the machine and its applications, and applied research carried out jointly with several well-known companies in the United States, Russia, and its products involving industrial, aerospace, marine and robot vision, and many other aspects. The customer stores green laser pointer in the good condition.
There are a number of well-known companies in the United States carried out the research in this area, Schwartz Electro-Optics laser wave measuring device developed for the U.S. national data center, for unattended waves measuring stations; developed for the United States Federal Government Highway Administration automatic laser sensing system for vehicle speed and altitude measurements. Specially designed in 1992 in Atlanta, USA laser company for the police hand-held eye-safe laser diode rangefinder for ranging and speed of vehicles. Over the last decade, there are several U.S. companies to carry out research in this area reported. In 1996, the United States Bushnell launched the 400 LD laser range finder Yardaga400 ranging capability of 400m, was named one of the world's 100 major scientific and technological achievements in 1997, then introduced the ranging capability of 500m-1000m series laser ranging machine. It will take much time and personnel to test the quality and performance of green laser pointer .
1998 U.S. Tasoc companies ranging capability for 800 yards cameras the type Laserstie of LD laser range finder. U.S. LaserTech Leica launched in recent years ranging capability of 1000 meters, one meter accuracy handheld Shandong University of Science and Technology bachelor's degree thesis introduction telescope rangefinder. Since 1995, the international eye-safe semiconductor laser ranging technology development very quickly, has launched a wavelength within the 800-900nm range, the peak power of 10W, pulse width of 20-50ns, repetition rate of 1-10kHz, measuring the distance 10m-1km of the laser range finder [4]. It will take a lot to perform the quality control process of green laser pointer .
The laser rangefinder prototype research began in the 1980s, is developed on the basis of the original solid, gas laser rangefinder. At present, CASIC 58 1983, developed a measurement range 200m, accuracy of ± 0.5m, the repetition rate of 100Hz laser range finder. Shanghai Institute of Optics and Fine Mechanics in 1996 developed a portable semiconductor laser range finder, the operating wavelength of 800-900nm, the diffuse reflectance of the concrete wall ranging up to 100m, using 300MHz counting mode, the distance measurement accuracy of ± 0.5m, the repetition frequency of 1kHz. China Institute of Metrology, 1999, Department of Information Engineering optoelectronics and abroad to develop low-cost, portable semiconductor laser range finder, the operating wavelength of 905nm, the role of distance measuring 1 km, the repetition frequency of 100Hz, accuracy of <± 1m, in Shanghai, fourth won the Silver Award in Science and Technology Fair. If the quantity of the order of green laser pointer is too large.
Has been developed into various models of three different types of operating wavelength 10.6um and 1.54um eye-safe laser rangefinder, has entered the production and application stages. At the same time, the laser ranging technology is gradually applied to the civil field. Lasted nearly 30 years since the early 1970s, many foreign universities, research institutions and companies have carried out research in this area. The earliest study of Finland Oulu University electrical engineering and the Finnish technical research center, research from the various sub-systems to the machine and its applications, and applied research carried out jointly with several well-known companies in the United States, Russia, and its products involving industrial, aerospace, marine and robot vision, and many other aspects. The customer stores green laser pointer in the good condition.
There are a number of well-known companies in the United States carried out the research in this area, Schwartz Electro-Optics laser wave measuring device developed for the U.S. national data center, for unattended waves measuring stations; developed for the United States Federal Government Highway Administration automatic laser sensing system for vehicle speed and altitude measurements. Specially designed in 1992 in Atlanta, USA laser company for the police hand-held eye-safe laser diode rangefinder for ranging and speed of vehicles. Over the last decade, there are several U.S. companies to carry out research in this area reported. In 1996, the United States Bushnell launched the 400 LD laser range finder Yardaga400 ranging capability of 400m, was named one of the world's 100 major scientific and technological achievements in 1997, then introduced the ranging capability of 500m-1000m series laser ranging machine. It will take much time and personnel to test the quality and performance of green laser pointer .
1998 U.S. Tasoc companies ranging capability for 800 yards cameras the type Laserstie of LD laser range finder. U.S. LaserTech Leica launched in recent years ranging capability of 1000 meters, one meter accuracy handheld Shandong University of Science and Technology bachelor's degree thesis introduction telescope rangefinder. Since 1995, the international eye-safe semiconductor laser ranging technology development very quickly, has launched a wavelength within the 800-900nm range, the peak power of 10W, pulse width of 20-50ns, repetition rate of 1-10kHz, measuring the distance 10m-1km of the laser range finder [4]. It will take a lot to perform the quality control process of green laser pointer .
The laser rangefinder prototype research began in the 1980s, is developed on the basis of the original solid, gas laser rangefinder. At present, CASIC 58 1983, developed a measurement range 200m, accuracy of ± 0.5m, the repetition rate of 100Hz laser range finder. Shanghai Institute of Optics and Fine Mechanics in 1996 developed a portable semiconductor laser range finder, the operating wavelength of 800-900nm, the diffuse reflectance of the concrete wall ranging up to 100m, using 300MHz counting mode, the distance measurement accuracy of ± 0.5m, the repetition frequency of 1kHz. China Institute of Metrology, 1999, Department of Information Engineering optoelectronics and abroad to develop low-cost, portable semiconductor laser range finder, the operating wavelength of 905nm, the role of distance measuring 1 km, the repetition frequency of 100Hz, accuracy of <± 1m, in Shanghai, fourth won the Silver Award in Science and Technology Fair. If the quantity of the order of green laser pointer is too large.
Friday, March 23, 2012
Use the desk charge of green laser pointer
The laser diode assembly of module housings and internal components of the laser diode, laser diode module housings surface sets a positioning housing, set up one step within the overall housing, positioning casing is set in the bore of the shell as a whole, and both between was rotating along the axial sliding with precision. Further placed components in the laser diode front-end lenses, the word lens / cross word lens / Cross lens located adjacent positioning within the shell hole with the overall housing one end of the light transmission hole. Further, in with the tools available to locate housing near one end of the overall shell rotating the groove of the laser diode components. The beneficial effect: the structure is simple and reasonable. The customer can master how to use the desk charger of green laser pointer very easily and conveniently.
Plus a positioning housing in the assembly on the basis of more simple and convenient, making follow-up work, improve work efficiency and speed of the assembly process, increase yield, save time and manpower. The structure of the laser module. A laser module structure, including a tubular overall housing, laser diode components and plug, the laser diode components and plug in the overall housing internal front-end and back-end, and with the overall housing with precision, laser diodes components of the module housings and internal components of the laser diode structure, characterized in that: the housing positioning a set of components in the laser diode housing surface; set up a step within the overall housing. There is no need to have the specific document to explain usage of charger of green laser pointer .
Positioning casing is set in the bore of the shell as a whole, and was rotating with precision along the axial sliding between the two. (b) in the laser diode component front-end lenses, place the word lens / cross word lens / Cross lens located adjacent positioning within the shell hole with the overall housing one end of the light transmission hole. Rotating the groove of the laser diode assembly with the tools available to locate housing near one end of the overall shell. Schematic diagram of combined laser module state following figure on the structure of the laser module further instructions. Figure 1 is a schematic diagram of the structure when the laser module separation; Figure 1 XII of Xi'an University of Technology Northern College of Information Engineering graduation project (thesis). Figure 2 Figure 1 of this laser projection view module. No training is needed to teach the user how to use the desk charge of green laser pointer .
Figure 2 Figure 3 shows the profile of this laser module in combination; Figure 31 as a whole shell. Laser diode components plug. Laser diode module housings (5) positioning shell. Word lens / Cross lens 8. groove 6. steps specific laser module designed a specific design approach, as shown in Figure 1 and 2 follows: a laser module structure of a tubular casing 1, the laser diode components 2 and plug 3 laser diode components and plug are located in the overall housing an internal front-end and back-end, and with the overall housing with precision, laser diode components from the laser diode module housings and internal components constitute the laser the shell surface of the diode component sets a positioning shell. It is to charge the battery of green laser pointer .
Set a step in the overall housing an internal; positioning shell set in the overall housing bore between the two were rotating with precision along the axial sliding, locate housing close to the overall housing one end with the tools available to the rotating laser two XIII Xi'an University of Technology Northern College of Information Engineering Graduation Project (Thesis) diode component 2, the groove 8. This implementation method is given in the embodiment of a laser beam fired spotty. Specific design approach, as shown in Figure 1 and 2: structure of a laser module, including an overall tubular casing 1, the laser diode components and plug, laser diode components and plug 3 are located in the overall housing an internal front-end and back-end. The user should put the battery of green laser into the desk charger.
Plus a positioning housing in the assembly on the basis of more simple and convenient, making follow-up work, improve work efficiency and speed of the assembly process, increase yield, save time and manpower. The structure of the laser module. A laser module structure, including a tubular overall housing, laser diode components and plug, the laser diode components and plug in the overall housing internal front-end and back-end, and with the overall housing with precision, laser diodes components of the module housings and internal components of the laser diode structure, characterized in that: the housing positioning a set of components in the laser diode housing surface; set up a step within the overall housing. There is no need to have the specific document to explain usage of charger of green laser pointer .
Positioning casing is set in the bore of the shell as a whole, and was rotating with precision along the axial sliding between the two. (b) in the laser diode component front-end lenses, place the word lens / cross word lens / Cross lens located adjacent positioning within the shell hole with the overall housing one end of the light transmission hole. Rotating the groove of the laser diode assembly with the tools available to locate housing near one end of the overall shell. Schematic diagram of combined laser module state following figure on the structure of the laser module further instructions. Figure 1 is a schematic diagram of the structure when the laser module separation; Figure 1 XII of Xi'an University of Technology Northern College of Information Engineering graduation project (thesis). Figure 2 Figure 1 of this laser projection view module. No training is needed to teach the user how to use the desk charge of green laser pointer .
Figure 2 Figure 3 shows the profile of this laser module in combination; Figure 31 as a whole shell. Laser diode components plug. Laser diode module housings (5) positioning shell. Word lens / Cross lens 8. groove 6. steps specific laser module designed a specific design approach, as shown in Figure 1 and 2 follows: a laser module structure of a tubular casing 1, the laser diode components 2 and plug 3 laser diode components and plug are located in the overall housing an internal front-end and back-end, and with the overall housing with precision, laser diode components from the laser diode module housings and internal components constitute the laser the shell surface of the diode component sets a positioning shell. It is to charge the battery of green laser pointer .
Set a step in the overall housing an internal; positioning shell set in the overall housing bore between the two were rotating with precision along the axial sliding, locate housing close to the overall housing one end with the tools available to the rotating laser two XIII Xi'an University of Technology Northern College of Information Engineering Graduation Project (Thesis) diode component 2, the groove 8. This implementation method is given in the embodiment of a laser beam fired spotty. Specific design approach, as shown in Figure 1 and 2: structure of a laser module, including an overall tubular casing 1, the laser diode components and plug, laser diode components and plug 3 are located in the overall housing an internal front-end and back-end. The user should put the battery of green laser into the desk charger.
Thursday, March 22, 2012
To ensure the high quality of 200mw laser pointer
But the Japanese of this technology, we also can not grasp the high failure rate, high cost, not suitable for China's national conditions, and patent protection, and how to do? Some people think of a way to open a small window on the above filter, so that the period of 850nm infrared light to come in, night, no lights, marked with the 850nm infrared LED light, the CCD will be able to image a, see the following open window filter: From the chart we can see that the filter allows the 400nm-650nm visible light and infrared light 850 ± 10nm to enter. The purchase process of the raw material of green laser pointer should be strictly performed.
Not so very simple, low cost, without having to switch the filter, low failure rate, which is called the electronic color to black camera. But the problem, allowing the infrared light into daytime image okay, of course, not be very good by the interference of infrared light, color cast during the day, will use it, after all, cheap. Not so good things, the more problems lie ahead, infrared machine to heat too much, the CCD aging too fast, resulting in the image white, black bars, foggy, fuzzy, infrared machine six months later, effect 50% discount. Laser infrared light camera requirements? Infrared laser light on the camera does not have any special requirements, ordinary dual filter sense the infrared camera can. The supplier selection process of the raw material of laser pointer is the important process.
Band of infrared laser light is 810NM, and many cameras day and night conversion, using the switch to a single filter, the filter can only be 850 ± the 10NM band of infrared light, as shown above. Night tablets make 750NM-1000NM-band with dual filter camera infrared light by the camera used in conjunction with infrared laser light is best to double-filter, with frame accumulation technology. Different types of cameras with an infrared light sensor is not the same, night vision is also different engineering applications, the actual test, the following camera models and customer tested, recommended for everyone, for reference only. All these parts and components of green laser should be strictly inspected.
Bar the use of an area of approximately 300 square meters, floor to ceiling height of about six meters, the overall rectangular layout. The bar stage was T-shaped, 0.56 meters high from the ground area of 13 square meters, located in the bar in parts. Bar The bar is located at the entrance, it is also the cashier. Auditorium, scattered around the stage and bar, deck 7 can be used alone for up to 6-8 customers and some loose seat, can fit in the overall number of about 150 people. Bar drinks to the customer, dance SHOW, DJs; a slow shake, performance, supplemented by small and medium-sized bar. Related to the slow roll bar popular definitions: What is a slow shake it: "slow roll" is short for "slow rock". To ensure the high quality of 200mw laser pointer .
Corresponding English of ROCK SLOW, it refers to is not playing very slowly rock, but to have a distinct characteristic of the kind of rock music, slow rock music is a mild commercial music, it inherited the rock singer and creator of the works framework, but softened the boundaries of the rock. "Slow roll bar" is just the rise of a new concept bar, from as early as Hainan, Guangdong, Shanghai and other places became popular, and quickly spread nationwide, is one of the most stylish entertainment. Audiences located around the performance area, audio and lighting effects in the side; both can enjoy the show on the stage, but also entertain themselves in their own seating area. It is according to the specific procedure of producing green laser pointer .
Not so very simple, low cost, without having to switch the filter, low failure rate, which is called the electronic color to black camera. But the problem, allowing the infrared light into daytime image okay, of course, not be very good by the interference of infrared light, color cast during the day, will use it, after all, cheap. Not so good things, the more problems lie ahead, infrared machine to heat too much, the CCD aging too fast, resulting in the image white, black bars, foggy, fuzzy, infrared machine six months later, effect 50% discount. Laser infrared light camera requirements? Infrared laser light on the camera does not have any special requirements, ordinary dual filter sense the infrared camera can. The supplier selection process of the raw material of laser pointer is the important process.
Band of infrared laser light is 810NM, and many cameras day and night conversion, using the switch to a single filter, the filter can only be 850 ± the 10NM band of infrared light, as shown above. Night tablets make 750NM-1000NM-band with dual filter camera infrared light by the camera used in conjunction with infrared laser light is best to double-filter, with frame accumulation technology. Different types of cameras with an infrared light sensor is not the same, night vision is also different engineering applications, the actual test, the following camera models and customer tested, recommended for everyone, for reference only. All these parts and components of green laser should be strictly inspected.
Bar the use of an area of approximately 300 square meters, floor to ceiling height of about six meters, the overall rectangular layout. The bar stage was T-shaped, 0.56 meters high from the ground area of 13 square meters, located in the bar in parts. Bar The bar is located at the entrance, it is also the cashier. Auditorium, scattered around the stage and bar, deck 7 can be used alone for up to 6-8 customers and some loose seat, can fit in the overall number of about 150 people. Bar drinks to the customer, dance SHOW, DJs; a slow shake, performance, supplemented by small and medium-sized bar. Related to the slow roll bar popular definitions: What is a slow shake it: "slow roll" is short for "slow rock". To ensure the high quality of 200mw laser pointer .
Corresponding English of ROCK SLOW, it refers to is not playing very slowly rock, but to have a distinct characteristic of the kind of rock music, slow rock music is a mild commercial music, it inherited the rock singer and creator of the works framework, but softened the boundaries of the rock. "Slow roll bar" is just the rise of a new concept bar, from as early as Hainan, Guangdong, Shanghai and other places became popular, and quickly spread nationwide, is one of the most stylish entertainment. Audiences located around the performance area, audio and lighting effects in the side; both can enjoy the show on the stage, but also entertain themselves in their own seating area. It is according to the specific procedure of producing green laser pointer .
Wednesday, March 21, 2012
It is the complete set of 200mw laser pointer
Little needles, you can cure serious illness. Today, scientists have been studies in ancient acupuncture based on, but also the invention of laser acupuncture. China since 1978, with laser acupuncture anesthesia for surgery, and has applied to the thyroid, stomach, obstetrics and gynecology, oral surgery, the effect is significant. In other countries, the surgeon of acupuncture also very interested. Germany, Russia, the United States, Austria, Hungary and many other countries have carried out studies of laser acupuncture, and even set off the heat of the laser acupuncture. Vienna, Austria, for example, the establishment of the Acupuncture Institute, each year 10,000 to 15,000 people receiving acupuncture treatment, which accounted for 30% of laser acupuncture treatment. There is still a kind of multiple function charger of green laser pointer .
The principle of laser acupuncture, laser focused irradiation of human acupuncture points for the efficacy of acupuncture can promote blood circulation and accelerate analgesic substances produce, promote the regeneration of nerve tissue. Typically, the helium-neon laser and semiconductor laser to treat insomnia, enuresis, infantile diarrhea, allergic rhinitis, frozen shoulder, myopia. Ne laser irradiation to Zhiyin, we can correct fetal position. The scientists have also invented a laser acupuncture treatment instrument. This new type of laser therapy equipment, output of 30 mW or 60 mW diode laser, wavelength 830 nm. Clinical Practice has proved that it has many important applications in the field of neurological, skin, rheumatism, sports injuries. And at this time the charger can be used to charge 18650 battery of laser pointer .
Being widespread attention, I believe it is "born", will bring the Gospel to more patients. "Welding" on the vascular anastomosis of the small blood vessels, also please Laser "welding". The scientists found that laser irradiation of biological organization, the organization was rapidly heated and condensation. If the irradiation is to rupture the vessel wall, vessel wall can be condensation to be "welded" on. The laser can either cut off the blood vessels, they can be "welded" vascular vessel "welding" is used to change the strength of the laser to achieve the. Laser as a "knife", the energy needed for the commonly used power of 60 watt carbon dioxide gas laser. For microsurgical anastomosis of small blood vessels, you need to power a small laser. It is the complete set of 200mw laser pointer .
Commonly used ruby laser, argon laser, only 2 to 3 watts of power, and fully meet the needs of the small blood vessel anastomosis. Low-power laser injection laser is even smaller than a human hair, commonly used in very fine microsurgery. Small energy of the laser does not cause deep tissue, fever, blood layer thickness but completely be no more than 100 microns, absorption, and therefore very suitable for the small blood vessels below the anastomosis diameter of 2 mm, and even the diameter of 0? 3 mm of the small blood vessels can be successfully welding ". Such a fine small blood vessels, such as needle suture, is simply unthinkable. Moreover, the laser welding of blood vessels, higher than the strength of the suture, and intimal smooth wall, which greatly reduces the possibility of postoperative thrombosis, greatly improving the success rate of surgery. That is the reason more and more customers are interested in this kind of green laser pointer .
Laser vascular anastomosis, save time and effort, compared to the suture with a needle, no unmatched superiority. Laser vascular anastomosis surgery, microsurgery, surgery, required under the operating microscope green laser . The first anastomosis of the vascular stump alignment, then use the laser-guided laser alignment ends "welded". In case of "welding" the good, vascular thrombosis, can also use a special optical fiber, the laser import vessels were removed, so that the vascular re-smooth. In addition, scientists are using laser blood vessels to "cosmetic". This technology is invented according to the principle of tissue in more than 400 ℃ high temperature, you can "evaporate". So that the customer can hold green laser pointer more tightly and conveniently.
The principle of laser acupuncture, laser focused irradiation of human acupuncture points for the efficacy of acupuncture can promote blood circulation and accelerate analgesic substances produce, promote the regeneration of nerve tissue. Typically, the helium-neon laser and semiconductor laser to treat insomnia, enuresis, infantile diarrhea, allergic rhinitis, frozen shoulder, myopia. Ne laser irradiation to Zhiyin, we can correct fetal position. The scientists have also invented a laser acupuncture treatment instrument. This new type of laser therapy equipment, output of 30 mW or 60 mW diode laser, wavelength 830 nm. Clinical Practice has proved that it has many important applications in the field of neurological, skin, rheumatism, sports injuries. And at this time the charger can be used to charge 18650 battery of laser pointer .
Being widespread attention, I believe it is "born", will bring the Gospel to more patients. "Welding" on the vascular anastomosis of the small blood vessels, also please Laser "welding". The scientists found that laser irradiation of biological organization, the organization was rapidly heated and condensation. If the irradiation is to rupture the vessel wall, vessel wall can be condensation to be "welded" on. The laser can either cut off the blood vessels, they can be "welded" vascular vessel "welding" is used to change the strength of the laser to achieve the. Laser as a "knife", the energy needed for the commonly used power of 60 watt carbon dioxide gas laser. For microsurgical anastomosis of small blood vessels, you need to power a small laser. It is the complete set of 200mw laser pointer .
Commonly used ruby laser, argon laser, only 2 to 3 watts of power, and fully meet the needs of the small blood vessel anastomosis. Low-power laser injection laser is even smaller than a human hair, commonly used in very fine microsurgery. Small energy of the laser does not cause deep tissue, fever, blood layer thickness but completely be no more than 100 microns, absorption, and therefore very suitable for the small blood vessels below the anastomosis diameter of 2 mm, and even the diameter of 0? 3 mm of the small blood vessels can be successfully welding ". Such a fine small blood vessels, such as needle suture, is simply unthinkable. Moreover, the laser welding of blood vessels, higher than the strength of the suture, and intimal smooth wall, which greatly reduces the possibility of postoperative thrombosis, greatly improving the success rate of surgery. That is the reason more and more customers are interested in this kind of green laser pointer .
Laser vascular anastomosis, save time and effort, compared to the suture with a needle, no unmatched superiority. Laser vascular anastomosis surgery, microsurgery, surgery, required under the operating microscope green laser . The first anastomosis of the vascular stump alignment, then use the laser-guided laser alignment ends "welded". In case of "welding" the good, vascular thrombosis, can also use a special optical fiber, the laser import vessels were removed, so that the vascular re-smooth. In addition, scientists are using laser blood vessels to "cosmetic". This technology is invented according to the principle of tissue in more than 400 ℃ high temperature, you can "evaporate". So that the customer can hold green laser pointer more tightly and conveniently.
Tuesday, March 20, 2012
The manufacturer can commission the needed power of green laser pointer
Ion gas laser power higher than the atomic gas, but most of the laser wavelength in the ultraviolet and visible, so the use of a certain range. Activation of the neutral gas composition of three categories: carbon monoxide, nitrogen, hydrogen, oxygen and other diatomic molecules; triatomic molecule of carbon dioxide, nitrous oxide, water vapor and a small number of polyatomic molecules. Molecular gas laser is characterized by: the widest wavelength range from the ultraviolet to the far-infrared has laser output power, high conversion efficiency. Dioxide (CO2) laser wavelength of 10? 6 microns, right on the atmospheric window, can be carried very far in the atmosphere, is not visible in the infrared region, big power, high efficiency, so in the military wide. It is for the manufacturer to test and detect the total output power of 200mw laser pointer .
In the gas laser medium, in addition to active ingredients. Also generally mixed with the appropriate amount of auxiliary gas, in order to improve the laser output power, improve laser performance and to extend laser life. Gas lasers have electricity, heat, chemical energy, solar energy, nuclear and other incentives. Energy incentives, there are DC, AC, RF discharge points. Huge power chemical laser through a chemical reaction to achieve population inversion laser called a chemical laser. Although the working substance of its gas (also useful for liquids), the structure most similar to gas lasers, but in the chemical reaction caused by the inversion process, in particular, by chemical reaction laser operation. So that the manufacturer can commission the needed power of green laser pointer .
So, not to be included in a gas laser and a separate presentation. Release? × 107 joules of energy, chemicals bears have great chemistry, such as per kilogram of fluorine, hydrogen fuel, the reaction of hydrogen fluoride (HF). Because it has a lot of energy concentrated in the unit volume, when the chemical energy is converted to stimulated emission, high-energy laser. In addition, the device volume is small, weight light, very popular with the military favor. 1978 U.S. Navy carrier-based laser weapon shooting test is 400 000 watts of continuous wave DF (DF) chemical laser. Our own design and development of a too-watt (MW) is equal to 1 trillion a large high-power lasers - SG device is a chemical laser. It is to meet different requirements of the customer towards green laser pointer .
The United States has developed a desktop chemical high-power laser systems, the instantaneous power of 10 terawatts (MW) is equal to 10 trillion, equivalent to 20 times the U.S. total output power of all power stations. The chemical excitation energy from the chemical reaction, thus largely eliminating the need for external energy, and external dependence is small, it is much desired field and military applications. Discussed earlier, the laser must be outside the excitation energy, especially electricity, its power is often accounted for the vast majority of volume and weight of the laser. A 100 000-watt power lasers, the overall efficiency for the thousandth, there must be a generator of more than 100,000 kilowatts specifically to supply it. The power meter of laser pointer is usually used by the manufacturer.
Of course, the chemical laser also how much with a little outside energy to trigger the chemical reaction, the demand for very small compared to other laser excitation energy was negligible. Chemical laser toxic substances in the majority, even a glass of one class of substances resistant to corrosion. More dispersed in a chemical reaction, the particle number of level distribution, poor laser monochrome. Chemical laser material pressure is still relatively low, the reaction energy utilization is not too high, which I have yet to improve. Very short wavelength excimer green laser "is different from the general stability of molecules, it is not real molecules do not exist in the normal state of nature. It is to test and detect whether the real power of green laser pointer is higher or lower than the needed power requirement of the customer.
In the gas laser medium, in addition to active ingredients. Also generally mixed with the appropriate amount of auxiliary gas, in order to improve the laser output power, improve laser performance and to extend laser life. Gas lasers have electricity, heat, chemical energy, solar energy, nuclear and other incentives. Energy incentives, there are DC, AC, RF discharge points. Huge power chemical laser through a chemical reaction to achieve population inversion laser called a chemical laser. Although the working substance of its gas (also useful for liquids), the structure most similar to gas lasers, but in the chemical reaction caused by the inversion process, in particular, by chemical reaction laser operation. So that the manufacturer can commission the needed power of green laser pointer .
So, not to be included in a gas laser and a separate presentation. Release? × 107 joules of energy, chemicals bears have great chemistry, such as per kilogram of fluorine, hydrogen fuel, the reaction of hydrogen fluoride (HF). Because it has a lot of energy concentrated in the unit volume, when the chemical energy is converted to stimulated emission, high-energy laser. In addition, the device volume is small, weight light, very popular with the military favor. 1978 U.S. Navy carrier-based laser weapon shooting test is 400 000 watts of continuous wave DF (DF) chemical laser. Our own design and development of a too-watt (MW) is equal to 1 trillion a large high-power lasers - SG device is a chemical laser. It is to meet different requirements of the customer towards green laser pointer .
The United States has developed a desktop chemical high-power laser systems, the instantaneous power of 10 terawatts (MW) is equal to 10 trillion, equivalent to 20 times the U.S. total output power of all power stations. The chemical excitation energy from the chemical reaction, thus largely eliminating the need for external energy, and external dependence is small, it is much desired field and military applications. Discussed earlier, the laser must be outside the excitation energy, especially electricity, its power is often accounted for the vast majority of volume and weight of the laser. A 100 000-watt power lasers, the overall efficiency for the thousandth, there must be a generator of more than 100,000 kilowatts specifically to supply it. The power meter of laser pointer is usually used by the manufacturer.
Of course, the chemical laser also how much with a little outside energy to trigger the chemical reaction, the demand for very small compared to other laser excitation energy was negligible. Chemical laser toxic substances in the majority, even a glass of one class of substances resistant to corrosion. More dispersed in a chemical reaction, the particle number of level distribution, poor laser monochrome. Chemical laser material pressure is still relatively low, the reaction energy utilization is not too high, which I have yet to improve. Very short wavelength excimer green laser "is different from the general stability of molecules, it is not real molecules do not exist in the normal state of nature. It is to test and detect whether the real power of green laser pointer is higher or lower than the needed power requirement of the customer.
Monday, March 19, 2012
Laser pointer is suitable to the long-time use
In business activities, requires a lot of color promotional materials, gradually returning to the internal office printing, color printing technology is maturing and costs come down, and some printing to complete the printing of documents. Widely used for a variety of PPT document and a growing number of photo-text information appears only in black and white printing can no longer meet the needs of people. With the improvement of the maturity of the domestic information environment and color laser printer cost-effective, color laser printing will be further spread. In summary, the highly competitive printing market anomaly, the voice of the traditional black and white laser printer color laser printer to replace one after another. green laser pointer can help the user or customer to save more space and carry it around very conveniently.
Black and white laser printer color laser printer to replace Although it is a general trend, but to be completely replaced in a fairly long period of time is unrealistic, it still has a certain amount of living space, as long as the major manufacturers of black and white laser printer market some intensive "black and white laser printer will show the cost-effective, it remains a favorite of part of the minds of consumers. The laser printer may be: print speed, print format, print, color and brand classification. Print format the name suggests is the printer can print the output area. The so-called maximum print size refers to the maximum sheet size of the laser printer can print. At present, laser printers, the print format for the A3, A4, A5 format. So that this kind of wireless presenter laser pointer is suitable to the long-time use.
The print format of the printer, the greater the greater the scope of print. The size of the print format is to measure the performance of the printer for work group of users and departmental user's printer are A4 size or A3 products, at the time of purchase according to their printing needs to select the appropriate print format. Different uses of the printer can handle printing format is not the same, but under normal circumstances, the printer can handle the print format, including A4 size and A3 the two. But there are also some special format, for example, deal with banner printing or digital image processing print jobs, are likely to use to A0 format printer. So that 200mw laser pointer is well received in the domestic market and oversea market.
Particularly those with professional output requirements of the print users, such as engineering blueprint, advertising and design needs to consider the use of A2 or more large format printer. Inkjet printer can print paper format inkjet printers usually print format A3 or A4 size. The print format of the printer, the greater the greater the scope of print. The role of the laser scanning system: the computer's digital signals into optical signals, and irradiation to the surface of the drum include: the laser head (laser generator): composed by the two red light-emitting diodes, the computer's digital signal into a light signal, and issued the intermittent optical signal light modulator (filter lens). This kind of green laser only can be used for its laser function.
To filter out stray light outside of the red, mainly to filter out blue light, yellow high-frequency deflection shocked mirror: is a multi-flute mirror (mirror-nos), high-speed rotation, a little light into a light high-frequency drive: The drive motor and driver board composition, the role of the drive deflection flute mirror high-speed rotating convex lens: focusing and beam divergence, the light in line with the length of the drum, to improve the resolution of a plane mirror: the reflection of light to a photosensitive drum surface dust-proof glass: a plane mirror surface. , since the role of dust optical feedback detection circuit 2, the electronic imaging system: the rays drum form a latent image, and then attract toner to form a visible image, including: the charge roller: the surface with a layer of rubber-like ionization membrane, the role of the drum uniform charging a single bulging core. The user or customer bought green laser pointer for the red laser pointer was relatively lower in the cost and price.
Black and white laser printer color laser printer to replace Although it is a general trend, but to be completely replaced in a fairly long period of time is unrealistic, it still has a certain amount of living space, as long as the major manufacturers of black and white laser printer market some intensive "black and white laser printer will show the cost-effective, it remains a favorite of part of the minds of consumers. The laser printer may be: print speed, print format, print, color and brand classification. Print format the name suggests is the printer can print the output area. The so-called maximum print size refers to the maximum sheet size of the laser printer can print. At present, laser printers, the print format for the A3, A4, A5 format. So that this kind of wireless presenter laser pointer is suitable to the long-time use.
The print format of the printer, the greater the greater the scope of print. The size of the print format is to measure the performance of the printer for work group of users and departmental user's printer are A4 size or A3 products, at the time of purchase according to their printing needs to select the appropriate print format. Different uses of the printer can handle printing format is not the same, but under normal circumstances, the printer can handle the print format, including A4 size and A3 the two. But there are also some special format, for example, deal with banner printing or digital image processing print jobs, are likely to use to A0 format printer. So that 200mw laser pointer is well received in the domestic market and oversea market.
Particularly those with professional output requirements of the print users, such as engineering blueprint, advertising and design needs to consider the use of A2 or more large format printer. Inkjet printer can print paper format inkjet printers usually print format A3 or A4 size. The print format of the printer, the greater the greater the scope of print. The role of the laser scanning system: the computer's digital signals into optical signals, and irradiation to the surface of the drum include: the laser head (laser generator): composed by the two red light-emitting diodes, the computer's digital signal into a light signal, and issued the intermittent optical signal light modulator (filter lens). This kind of green laser only can be used for its laser function.
To filter out stray light outside of the red, mainly to filter out blue light, yellow high-frequency deflection shocked mirror: is a multi-flute mirror (mirror-nos), high-speed rotation, a little light into a light high-frequency drive: The drive motor and driver board composition, the role of the drive deflection flute mirror high-speed rotating convex lens: focusing and beam divergence, the light in line with the length of the drum, to improve the resolution of a plane mirror: the reflection of light to a photosensitive drum surface dust-proof glass: a plane mirror surface. , since the role of dust optical feedback detection circuit 2, the electronic imaging system: the rays drum form a latent image, and then attract toner to form a visible image, including: the charge roller: the surface with a layer of rubber-like ionization membrane, the role of the drum uniform charging a single bulging core. The user or customer bought green laser pointer for the red laser pointer was relatively lower in the cost and price.
Sunday, March 18, 2012
The red green laser was relatively lower in the cost and price
Micro Piezo print technology's inherent lack of most big head, such as a thin nozzle is likely to cause congestion, that is, the air inside will be "cold", the printer using such technology requires frequent cleaning nozzle, relatively Fei Mo. Many people do not understand this situation, think of a way to stop the automatic cleaning nozzle of the printer, it is not necessary. Second, this print head is fragile, and relatively large power at work, vibration, noise, a high failure rate, so the manufacturers to adopt the nozzle year warranty, provided that the use specified by the manufacturer of the cartridge. Although the piezoelectric nozzle Generally speaking, the head of its life the nozzles of other technologies can not match. However, from the actual point of view, many of my friends and complete to the nozzle come to an end, a little attention, the nozzle on the reimbursement, they are many reasons. The red laser beam green laser pointer became the main trend in the daily and practical use.
On the one hand, the technical limitations of the nozzle determines the "squeamish" careless use whatever ink used to fill certainly not, not a long time does not work into print also broken into bubbles in the ink works scrapped in line, ink delivery is not smooth and make your print cartridges taken out again into the printer, the nozzle should be arguing with you, not to play White is a white line. On the other hand, due to the cartridge nozzle separation cartridges filled with ink is convenient to make a lot of people think that a simple operation, do not pay attention to the method, nor sprinklers prone to failure, attention and prevention, the approach is too simple problems lightly, eager to hope for success, and ultimately cause damage to the nozzle. It is the power testing of laser pointer .
Canon, HP, Limon, are used in the thermal bubble inkjet technology to change the volume by heating to jet ink, due to thermal expansion and contraction will certainly accelerate the aging of the nozzle, the life of the nozzle can not be compared and the piezoelectric nozzle, so early are the nozzle and the ink cartridges do together, known as the nozzle cartridge integration, so this cartridge prices higher, after all, include the price of a nozzle, this nozzle manufacturers do not very sophisticated, quality is very so that the nozzle cartridge price will be more expensive, and manufacturers to adopt the strategy is to change the cartridge is equal to put a new nozzle, the nozzle of course, quality can not be considered the best. However, this nozzle is finished print in ink. The red green laser was relatively lower in the cost and price.
The remaining value of the sprinklers greatly, therefore, there will be refilled early, many people's idea is: ink to use after the cartridge is still not as good as filling ink to experiment, irrigation time is earned. , HP, Limon basic or nozzle cartridge integration, the only HP business and large jet aircraft on the cartridge nozzle split, this nozzle service life increased a lot, of course, the price certainly added by the Inkjet printer works. Charge Control mode ink-jet printer. Components: the inkjet head, charging the electrode, the deflection electrode ink supply and filtration system (including ink pumps, ink tank, filters, a collection trough. And at the same time more and more functions are added to 200mw laser pointer .
The control circuit power supply. Work, the conductive ink in the ink pump under high pressure into the nozzle through a nozzle to form a bunch of very fine high-speed jet: the jet through a high-frequency oscillation generator, breaking into a continuous and uniform stream of ink droplets. Exert an electrostatic field in the charging electrode to the ink drop charging, charging that the location of the level is proportional to the charge and droplet spray paper. Charging electrode plus the higher the voltage, more Charging charge. With different charge drops, the electric field formed by the constant high-voltage deflection electrode by the addition, the vertical deflection to the desired location, charge maintained until the droplet fell to record on paper so far. So that the customer can use this kind of green laser pointer to store the data.
On the one hand, the technical limitations of the nozzle determines the "squeamish" careless use whatever ink used to fill certainly not, not a long time does not work into print also broken into bubbles in the ink works scrapped in line, ink delivery is not smooth and make your print cartridges taken out again into the printer, the nozzle should be arguing with you, not to play White is a white line. On the other hand, due to the cartridge nozzle separation cartridges filled with ink is convenient to make a lot of people think that a simple operation, do not pay attention to the method, nor sprinklers prone to failure, attention and prevention, the approach is too simple problems lightly, eager to hope for success, and ultimately cause damage to the nozzle. It is the power testing of laser pointer .
Canon, HP, Limon, are used in the thermal bubble inkjet technology to change the volume by heating to jet ink, due to thermal expansion and contraction will certainly accelerate the aging of the nozzle, the life of the nozzle can not be compared and the piezoelectric nozzle, so early are the nozzle and the ink cartridges do together, known as the nozzle cartridge integration, so this cartridge prices higher, after all, include the price of a nozzle, this nozzle manufacturers do not very sophisticated, quality is very so that the nozzle cartridge price will be more expensive, and manufacturers to adopt the strategy is to change the cartridge is equal to put a new nozzle, the nozzle of course, quality can not be considered the best. However, this nozzle is finished print in ink. The red green laser was relatively lower in the cost and price.
The remaining value of the sprinklers greatly, therefore, there will be refilled early, many people's idea is: ink to use after the cartridge is still not as good as filling ink to experiment, irrigation time is earned. , HP, Limon basic or nozzle cartridge integration, the only HP business and large jet aircraft on the cartridge nozzle split, this nozzle service life increased a lot, of course, the price certainly added by the Inkjet printer works. Charge Control mode ink-jet printer. Components: the inkjet head, charging the electrode, the deflection electrode ink supply and filtration system (including ink pumps, ink tank, filters, a collection trough. And at the same time more and more functions are added to 200mw laser pointer .
The control circuit power supply. Work, the conductive ink in the ink pump under high pressure into the nozzle through a nozzle to form a bunch of very fine high-speed jet: the jet through a high-frequency oscillation generator, breaking into a continuous and uniform stream of ink droplets. Exert an electrostatic field in the charging electrode to the ink drop charging, charging that the location of the level is proportional to the charge and droplet spray paper. Charging electrode plus the higher the voltage, more Charging charge. With different charge drops, the electric field formed by the constant high-voltage deflection electrode by the addition, the vertical deflection to the desired location, charge maintained until the droplet fell to record on paper so far. So that the customer can use this kind of green laser pointer to store the data.
Friday, March 16, 2012
This kind of laser pointer can be used to point at any desired targets
As an alternative to the traditional larger, higher-cost frequency doubling solid-state laser (left). In order to achieve the laser output, the researchers used an aspheric collimating lens, a telescope constituted by two cylindrical lenses and a spherical lens, the laser diode output light is focused to a four-mirror cavity of the titanium-doped sapphire crystal on. The calculated crystal cavity waist radius of 25 × 15μm. Output coupling of 0.5% under the conditions of the incident to the crystal optical power of 870mW 750mW clamping threshold, as well as the 9mW of the maximum average output power can be. Interfere with the output of the autocorrelation method, the measured finite transformation FWHM pulse width 116fs. green laser pointer adopts the specific metal material.
Measured output power is lower than the modeling to calculate the expected value. The researchers believe that this is the loss caused due to the wavelength of the laser-pumped. But when the wavelength is greater than 477nm, it is difficult to detect the loss. Progress has been made due to the longer wavelength of GaN laser diode technology, the research team believes that further experiments can quickly create a higher output power diode pumped directly titanium-doped sapphire laser. Even with a 452nm laser diode current as well as bilateral pump polarization combinations, the researchers still believe we can get the output power of about 50mW. It can make green laser pointer more durable to use.
Doctoral student Peter Roth said: "titanium-doped sapphire laser diode laser pump can significantly reduce the complexity of existing systems. Therefore, in the near future, we need only spend a small portion of the existing cost and space, can be obtained Today, these high-cost desktop-doped titanium sapphire laser with unmatched performance by multiplexing two existing GaN diode lasers (one for each device at the 450nm wavelength at the output power of about 1W), will be expected to be average output power of about 50W tunable femtosecond titanium sapphire laser, the laser can be achieved from imaging spectroscopy of a variety of applications, such as fluorescence microscopy accessories. This kind of laser pointer can be used to point at any desired targets.
The femtosecond laser is one of the most powerful new tools for the past 20 years by the development of laser science. Femtosecond pulse is so short, and has now reached 4fs within (visible - near infrared band). A femtosecond (fs), ie, 10-15s, only 10 million billionths of a second to 10 fs as a geometric average to measure the universe, its life expectancy is only 1min.; Femtosecond pulse is so strong, multi- level chirped pulse amplification (CPA) technology to obtain the maximum pulse peak power can reach 100 terawatt (TW, ie, 1012W) and even petawatt (PW, ie, 1015W) order of magnitude, its focused intensity solar radiation on Earth All light is focused into a needle-like size of the energy density is even higher. green laser includes the projection screen, lecture screen and so on.
The femtosecond laser is the miracle of human creation. Past two decades, from the dye laser to the Kerr lens mode-locked Ti gem femtosecond lasers, and diode pumped solid-state femtosecond lasers and femtosecond fiber laser, although the femtosecond laser pulse width and energy record is constantly refreshed, but the greatest progress than the ultra-femtosecond pulse becomes easy. R.Trebino, Sandia National Laboratories, said: "Over the past 10 years, (ultrafast) technology has significantly improved titanium sapphire laser and fiber laser is to make this (femtosecond) laser operation becomes simple and stability of such lasers now be able to buy 10 years ago, but you must establish. " 200mw laser pointer can be used in many locations.
Measured output power is lower than the modeling to calculate the expected value. The researchers believe that this is the loss caused due to the wavelength of the laser-pumped. But when the wavelength is greater than 477nm, it is difficult to detect the loss. Progress has been made due to the longer wavelength of GaN laser diode technology, the research team believes that further experiments can quickly create a higher output power diode pumped directly titanium-doped sapphire laser. Even with a 452nm laser diode current as well as bilateral pump polarization combinations, the researchers still believe we can get the output power of about 50mW. It can make green laser pointer more durable to use.
Doctoral student Peter Roth said: "titanium-doped sapphire laser diode laser pump can significantly reduce the complexity of existing systems. Therefore, in the near future, we need only spend a small portion of the existing cost and space, can be obtained Today, these high-cost desktop-doped titanium sapphire laser with unmatched performance by multiplexing two existing GaN diode lasers (one for each device at the 450nm wavelength at the output power of about 1W), will be expected to be average output power of about 50W tunable femtosecond titanium sapphire laser, the laser can be achieved from imaging spectroscopy of a variety of applications, such as fluorescence microscopy accessories. This kind of laser pointer can be used to point at any desired targets.
The femtosecond laser is one of the most powerful new tools for the past 20 years by the development of laser science. Femtosecond pulse is so short, and has now reached 4fs within (visible - near infrared band). A femtosecond (fs), ie, 10-15s, only 10 million billionths of a second to 10 fs as a geometric average to measure the universe, its life expectancy is only 1min.; Femtosecond pulse is so strong, multi- level chirped pulse amplification (CPA) technology to obtain the maximum pulse peak power can reach 100 terawatt (TW, ie, 1012W) and even petawatt (PW, ie, 1015W) order of magnitude, its focused intensity solar radiation on Earth All light is focused into a needle-like size of the energy density is even higher. green laser includes the projection screen, lecture screen and so on.
The femtosecond laser is the miracle of human creation. Past two decades, from the dye laser to the Kerr lens mode-locked Ti gem femtosecond lasers, and diode pumped solid-state femtosecond lasers and femtosecond fiber laser, although the femtosecond laser pulse width and energy record is constantly refreshed, but the greatest progress than the ultra-femtosecond pulse becomes easy. R.Trebino, Sandia National Laboratories, said: "Over the past 10 years, (ultrafast) technology has significantly improved titanium sapphire laser and fiber laser is to make this (femtosecond) laser operation becomes simple and stability of such lasers now be able to buy 10 years ago, but you must establish. " 200mw laser pointer can be used in many locations.
Thursday, March 15, 2012
To meet the high requirements and various needs of the customer of green laser pointer
Jiangsu Polytechnic University and Nanjing University [11], 2024T62 aluminum alloy by laser shock processing, laser impact zone hardness increased by 42%, 95% confidence level, the LSP test the value of the fatigue life of laser impact specimen 5.4 to 14.5 times. Jiangsu Polytechnic University [12] of 45 steel by laser shock processing, the LSP District hardness increased by 32%, the LSP test the value of the fatigue life is not the impact of the specimens from 1.11 to 2.133 times (95% confidence). As the stress of laser shock-wave duration is very short (microseconds), especially the local area with stress concentration on the effective handling of the finished parts, such as increasing the fatigue life of the local area in the corner, holes, slots and other finished parts, so the LSP technology, engineering application. The positive pole of the battery of green laser pointer will be marked as “+”.
Huazhong University of Science [13] studies show that laser shock processing a substantial increase of LY12-the CZ aluminum alloy fatigue life of the microscopic mechanism of dislocation density after the laser shock increased by 21 times the surface residual compressive stresses 49.43MPa . See [14] in the laser shock processing annealed T8 steel laser shock induced martensitic transformation and martensite explain the reasons for the hardness increased by 2 times. Principle in accordance with the piezoelectric conversion value to calculate the transient shock wave formation [15] Laser Shock of LY12-CZ aluminum alloy MPa grade, and laser shock wave is superimposed by a series of different frequency waves, which frequency waves in large proportion. It means that the diameter of this kind of battery of laser pointer is 15mm.
Nanjing University [16], surface roughness and micro-pits two surface quality indicators and divided into four grades, as the identification and control of laser peening effect in the practical application, non-destructive testing methods. From the above, China has the basis of the application of laser shock hardening a lot of research has been relatively clear findings, the key issue is that as soon as possible LSPs with appropriate cost-effective industrial applications and equipment. Rapid laser melting solidification regular coagulation conditions. Many studies show that the solidification of the material characteristics of high temperature gradient and high solidification rate under the condition of Laser Rapid Melting traditional solidification theory can not completely reveal exactly the laws of the material solidified. When it is needed to manufacture green laser .
At home and abroad in recent years, many researchers have done a lot of work. Which Northwestern Polytechnical University, solidified the State Key Laboratory carried out under the condition of Laser Rapid Melting of basic research. In laser rapid solidification microstructure formation of the principle [17] introduced the Laser Rapid Solidification Microstructures of the interface temperature selection theory, as well as single-phase plane cutting-edge, single-phase dendrites and flat growth in the three kinds of typical interface response function and its The predicted single-phase alloys, the eutectic alloy of gold and peritectic alloy laser rapid solidification microstructure. Different substrate materials on laser cladding. The laser cladding of the base materials are mostly cheap ordinary carbon steel and cast iron. In recent years, Tsinghua University, laser cladding of aluminum alloy as base material, a lot of work [18]. It is in charge of the incoming test of the raw material of 200mw laser pointer .
Succeeded in obtaining the uniform and dense SiO2 coating and Al2O3-TiO2 coating the surface of the aluminum matrix powder feeding laser cladding method. SiO2 coating thickness of 10 ~ 30μm Al2O3-TiO2 coating thickness up to 100μm, coating the internal dense defect-free coating with aluminum body good combination. Chongqing University [19] with a laser beam synthesis and coating of bio-ceramic coating on a titanium substrate material to be successful. Chinese Academy of metal [20] in Ni-based superalloy substrate NiCrBSi and NiCrAlY alloy powders of ZrO2 mixed powder laser cladding, the different structure of thermal barrier coatings. To meet the high requirements and various needs of the customer of green laser pointer .
Huazhong University of Science [13] studies show that laser shock processing a substantial increase of LY12-the CZ aluminum alloy fatigue life of the microscopic mechanism of dislocation density after the laser shock increased by 21 times the surface residual compressive stresses 49.43MPa . See [14] in the laser shock processing annealed T8 steel laser shock induced martensitic transformation and martensite explain the reasons for the hardness increased by 2 times. Principle in accordance with the piezoelectric conversion value to calculate the transient shock wave formation [15] Laser Shock of LY12-CZ aluminum alloy MPa grade, and laser shock wave is superimposed by a series of different frequency waves, which frequency waves in large proportion. It means that the diameter of this kind of battery of laser pointer is 15mm.
Nanjing University [16], surface roughness and micro-pits two surface quality indicators and divided into four grades, as the identification and control of laser peening effect in the practical application, non-destructive testing methods. From the above, China has the basis of the application of laser shock hardening a lot of research has been relatively clear findings, the key issue is that as soon as possible LSPs with appropriate cost-effective industrial applications and equipment. Rapid laser melting solidification regular coagulation conditions. Many studies show that the solidification of the material characteristics of high temperature gradient and high solidification rate under the condition of Laser Rapid Melting traditional solidification theory can not completely reveal exactly the laws of the material solidified. When it is needed to manufacture green laser .
At home and abroad in recent years, many researchers have done a lot of work. Which Northwestern Polytechnical University, solidified the State Key Laboratory carried out under the condition of Laser Rapid Melting of basic research. In laser rapid solidification microstructure formation of the principle [17] introduced the Laser Rapid Solidification Microstructures of the interface temperature selection theory, as well as single-phase plane cutting-edge, single-phase dendrites and flat growth in the three kinds of typical interface response function and its The predicted single-phase alloys, the eutectic alloy of gold and peritectic alloy laser rapid solidification microstructure. Different substrate materials on laser cladding. The laser cladding of the base materials are mostly cheap ordinary carbon steel and cast iron. In recent years, Tsinghua University, laser cladding of aluminum alloy as base material, a lot of work [18]. It is in charge of the incoming test of the raw material of 200mw laser pointer .
Succeeded in obtaining the uniform and dense SiO2 coating and Al2O3-TiO2 coating the surface of the aluminum matrix powder feeding laser cladding method. SiO2 coating thickness of 10 ~ 30μm Al2O3-TiO2 coating thickness up to 100μm, coating the internal dense defect-free coating with aluminum body good combination. Chongqing University [19] with a laser beam synthesis and coating of bio-ceramic coating on a titanium substrate material to be successful. Chinese Academy of metal [20] in Ni-based superalloy substrate NiCrBSi and NiCrAlY alloy powders of ZrO2 mixed powder laser cladding, the different structure of thermal barrier coatings. To meet the high requirements and various needs of the customer of green laser pointer .
Wednesday, March 14, 2012
The personnel will do the testing and commissioning process of the power of green laser
Education and entertainment software, home networking, software, simulation software system, the ray tracing software development and production of integrated software development system, and enhance the ability to bear the major systems engineering software development and systems integration is expected to need five years to a total investment of 500 million yuan in 2005 annual sales revenue of $ 1.5 billion to fight the formation of the 3C R & D in China and one of the industrial base as soon as possible, the GPS / GIS / RS, ITS and intelligent building systems 200mw laser pointer , the development of 3S products with independent intellectual property rights, such as satellite positioning Series (GPS ) receiver and vehicle management systems, GPS OEM board and antenna, GPS commercial software, GIS / RS products, intelligent traffic management systems (ITS), Intelligent Buildings, (buildings, residential) system. further expand production scale, enhance the promotion of the application. The personnel performs the testing and commission of the power of green laser pointer .
Study and master the key technology of the S-band microwave integrated circuits technology, the L / S master antenna technology, the miniaturization of receiver production process is expected to five years needs a total investment of 500 million yuan in 2005 to fight for the 3S systems and equipment to sales revenue of 10 billion as soon as possible the formation of 3S R & D in China and one of the industrial base, the fourth chapter of the technology innovation system in accordance with the "generation of production, development of generation, pre-generation" innovation strategy to improve the base of innovative capabilities at the core of the enterprise (including outside the enterprise) and three (universities, large research institutes, large enterprises). Especially when the power of green laser pointer is high enough.
Three armed forces (military academies, military, research institutes, scientific and technological resources of the military enterprises), as well as the resources of the province, the country and the world to effectively integrate four key areas in research and development, industrialization, support services, human resources " to build the base of a complete technical innovation system through the establishment of the innovation system, to attract domestic and foreign outstanding innovative talents, the world's most advanced and innovative technologies and innovative products, focus on cultivating a continuing innovative vigor of China's the photoelectron IT and industry, continue to promote our country optoelectronic information industry to a higher level of overall development, improve the international competitiveness of optoelectronic information technology and industry. a research and development system, vigorously develop various types of the photoelectron IT R & D institutions. Normally, the personnel should put on the protection goggle specific to laser pointer .
Actively develop various forms of technical cooperation at home and abroad, continue to strengthen the corporate R & D investment, emphasis on research and development of international high-standard construction Students Pioneer Park, and Virtual Research Park, focused on building a base for research and development system with international standards, in order to obtain the world advanced innovative technologies to enhance industrial development potential. development of optoelectronic information technology research and development institutions. relying on the existing fiber optic communications, laser machining, CAD software, and GPS system a number of national key disciplines, key laboratories and engineering centers, and guide the universities, hospital by enterprises build or expansion of about 5 countries (or provincial) level key disciplines, key laboratories, mainly involving optical materials, mobile communications, integrated circuit design, information security, nanotechnology and materials. The personnel will do the testing and commissioning process of the power of green laser .
Study and master the key technology of the S-band microwave integrated circuits technology, the L / S master antenna technology, the miniaturization of receiver production process is expected to five years needs a total investment of 500 million yuan in 2005 to fight for the 3S systems and equipment to sales revenue of 10 billion as soon as possible the formation of 3S R & D in China and one of the industrial base, the fourth chapter of the technology innovation system in accordance with the "generation of production, development of generation, pre-generation" innovation strategy to improve the base of innovative capabilities at the core of the enterprise (including outside the enterprise) and three (universities, large research institutes, large enterprises). Especially when the power of green laser pointer is high enough.
Three armed forces (military academies, military, research institutes, scientific and technological resources of the military enterprises), as well as the resources of the province, the country and the world to effectively integrate four key areas in research and development, industrialization, support services, human resources " to build the base of a complete technical innovation system through the establishment of the innovation system, to attract domestic and foreign outstanding innovative talents, the world's most advanced and innovative technologies and innovative products, focus on cultivating a continuing innovative vigor of China's the photoelectron IT and industry, continue to promote our country optoelectronic information industry to a higher level of overall development, improve the international competitiveness of optoelectronic information technology and industry. a research and development system, vigorously develop various types of the photoelectron IT R & D institutions. Normally, the personnel should put on the protection goggle specific to laser pointer .
Actively develop various forms of technical cooperation at home and abroad, continue to strengthen the corporate R & D investment, emphasis on research and development of international high-standard construction Students Pioneer Park, and Virtual Research Park, focused on building a base for research and development system with international standards, in order to obtain the world advanced innovative technologies to enhance industrial development potential. development of optoelectronic information technology research and development institutions. relying on the existing fiber optic communications, laser machining, CAD software, and GPS system a number of national key disciplines, key laboratories and engineering centers, and guide the universities, hospital by enterprises build or expansion of about 5 countries (or provincial) level key disciplines, key laboratories, mainly involving optical materials, mobile communications, integrated circuit design, information security, nanotechnology and materials. The personnel will do the testing and commissioning process of the power of green laser .
Tuesday, March 13, 2012
Green laser can show office files via the projector
What are the advantages of the one hundred beneficial HA Series table type semiconductor laser therapeutic apparatus similar products? The smallest, the product is more refined and stylish, and easy to carry; in one machine, can treat and a watch function; automation into high, to provide users with a "lazy" mode, to ensure timely treatment, the user can advance twice a day exposure time, exposure duration, exposure intensity setting, the treatment instrument to automatically open, work, turn off, if the user is using the time uncertainty of the treatment instrument, you can anytime, anywhere through the function keys of the manual laser treatment; The shell of stainless steel and alloy materials, and more solid, wear-resistant, waterproof and shockproof; modular design, the instrument being damaged, damaged, replacement or repair of the corresponding module. green laser pointer could be used as laser pointers shooting into targets.
So as to ensure minimum maintenance costs; high-tech patented product, the state Class II Medical Device by the National Science and Technology Innovation Gold Award, National Invention Prize's Olympics to China was awarded the "Star of Science and Technology through the ISO13485 quality system certification and EU CE; Enterprise. Innovative design, packaging and elegant, distinguished, is sent to the family, relatives, friends, leadership, send health, send blessings of good choice. The effect of one hundred beneficial HA series table semiconductor laser therapeutic apparatus authentication method. Treatment recognized by consumers to purchase one hundred beneficial HA series table semiconductor laser therapeutic apparatus of the main reasons. Consumers that only authorized products effect will just buy a referral or promotional products. The interface of laser pointer is USB interfaces.
One hundred beneficial HA series of table-type semiconductor laser therapeutic instrument is a Class II Medical Device (quasi-) famous product, the mechanism of the laser treatment products clear and proven. In addition, verify one hundred beneficial HA series table semiconductor laser product performance of the following methods: MDI subhealth detector. Brucei sub-health blood analysis instrument and its diagnostic techniques is the American scientist Dr.. Branford (Bradford) after long-term studies, summarizes the hematological analysis of diagnostic and research and invention. Use of modern optics, microelectronics and modern Imageology the latest achievements, linear amplification of the microscopic images of 40-25000 times. Promoting blood circulation as human blood in vitro state and coagulation of blood for analysis. green laser can show office files via the projector.
Diagnosis of human sub-health and disease states, the theoretical basis of cell morphology, the oxidation of the free radical theory and the human ECIWO theory. This method has advanced instrument, the method is simple, and a wide range of diagnostic features, very easy for people to accept. Patients using one hundred beneficial HA series table Semiconductor laser therapy instrument before and after a month in the hospital blood lipids (triglycerides, cholesterol, high LDL cholesterol), blood glucose, the use does not change during exercise, diet status, their data comparison (using a stop two days after re-testing). Hypertension, diabetes, high blood viscosity syndrome, high blood lipids in patients with long-term medication, although effective in the control data. 200mw laser pointer can read the electronic books.
However, long-term medication can cause symptoms of illness deepened, one hundred benefits of laser therapy instrument 5-15 days after symptoms ease or even disappear. Some users have even the same day there is obviously feeling. One hundred beneficial HA series table semiconductor laser therapeutic apparatus which reaction occurs. Chronic illness or physical discomfort, usually after using this product, the body will adjust the qi meridians temporary retreat disease phenomenon. Symptoms in the elimination of a series of reactions of the body is gradually returning to normal state. Traditional medicine known as "flares", "improved response". The phenomenon of the retreat disease varies from person to person, not every user will occur, a slight, only a few days, severe cases may persist for some time. It is the brief introduction to the green ray green laser pointer .
So as to ensure minimum maintenance costs; high-tech patented product, the state Class II Medical Device by the National Science and Technology Innovation Gold Award, National Invention Prize's Olympics to China was awarded the "Star of Science and Technology through the ISO13485 quality system certification and EU CE; Enterprise. Innovative design, packaging and elegant, distinguished, is sent to the family, relatives, friends, leadership, send health, send blessings of good choice. The effect of one hundred beneficial HA series table semiconductor laser therapeutic apparatus authentication method. Treatment recognized by consumers to purchase one hundred beneficial HA series table semiconductor laser therapeutic apparatus of the main reasons. Consumers that only authorized products effect will just buy a referral or promotional products. The interface of laser pointer is USB interfaces.
One hundred beneficial HA series of table-type semiconductor laser therapeutic instrument is a Class II Medical Device (quasi-) famous product, the mechanism of the laser treatment products clear and proven. In addition, verify one hundred beneficial HA series table semiconductor laser product performance of the following methods: MDI subhealth detector. Brucei sub-health blood analysis instrument and its diagnostic techniques is the American scientist Dr.. Branford (Bradford) after long-term studies, summarizes the hematological analysis of diagnostic and research and invention. Use of modern optics, microelectronics and modern Imageology the latest achievements, linear amplification of the microscopic images of 40-25000 times. Promoting blood circulation as human blood in vitro state and coagulation of blood for analysis. green laser can show office files via the projector.
Diagnosis of human sub-health and disease states, the theoretical basis of cell morphology, the oxidation of the free radical theory and the human ECIWO theory. This method has advanced instrument, the method is simple, and a wide range of diagnostic features, very easy for people to accept. Patients using one hundred beneficial HA series table Semiconductor laser therapy instrument before and after a month in the hospital blood lipids (triglycerides, cholesterol, high LDL cholesterol), blood glucose, the use does not change during exercise, diet status, their data comparison (using a stop two days after re-testing). Hypertension, diabetes, high blood viscosity syndrome, high blood lipids in patients with long-term medication, although effective in the control data. 200mw laser pointer can read the electronic books.
However, long-term medication can cause symptoms of illness deepened, one hundred benefits of laser therapy instrument 5-15 days after symptoms ease or even disappear. Some users have even the same day there is obviously feeling. One hundred beneficial HA series table semiconductor laser therapeutic apparatus which reaction occurs. Chronic illness or physical discomfort, usually after using this product, the body will adjust the qi meridians temporary retreat disease phenomenon. Symptoms in the elimination of a series of reactions of the body is gradually returning to normal state. Traditional medicine known as "flares", "improved response". The phenomenon of the retreat disease varies from person to person, not every user will occur, a slight, only a few days, severe cases may persist for some time. It is the brief introduction to the green ray green laser pointer .
Monday, March 12, 2012
Green laser pointer can be used in pitch-dark nights
He has been actively advocating to carry out this new technology in a short period of time, the combination of innovative young team to improve the brightness of the light unit color, coherence of ideas and experimental program 200mw laser pointer . Advent of the world's first laser in 1960. The summer of 1961, the king of the river under the auspices of, the first ruby laser was successfully developed. After a few short years, laser technology rapid development, resulting in a number of advanced achievements. Various types of solid, gas, semiconductor, and chemical lasers have been successfully developed. In basic research and key technologies, a series of new concepts, new methods and new technologies (such as the cavity Q-mutation and the rotating mirror Q, traveling-wave amplification, the use of rhenium Department of ions, free electron oscillation radiation, etc.) have put forward and get implementation, many of them original. green laser pointer is normally varnished with superior oil paint.
At the same time as the new light source with high brightness, high directivity, high-quality, outstanding features, the laser quickly used in various technical fields, showing strong vitality and competitiveness. Communications, laser show transmission of television images, in September 1964, November 1964, call of 3 to 30 km. Industry, in May 1965 laser drilling machine for drawing die punching production, access to significant economic benefits. Medicine, laser retinal welding carried out on animals and clinical trials in June 1965. National defense, in December 1965 to develop successful laser diffuse reflectance rangefinder (accuracy of 10 m / 10 km), developed a remote control pulse laser Doppler velocimetry in April 1966. The shooting distance of green ray laser pointer is longer.
It can be said, in the initial stage of China's rapid development of laser technology, both the quantity and quality, and international levels close to an innovative technology can so quickly catch up with the advanced in the world, rare in the history of the development of modern science and technology in China . These achievements, especially the physical ideas, technical solutions successfully into practical laser devices, mainly thanks to the comprehensive ability and a solid foundation of the-ray machines in technical optics, precision machinery and electronics technologies accumulated over the years. The development of a new technology, there is not enough technical support is difficult to form a climate. green laser pointer can be used in pitch-dark nights.
The key projects to drive the development of laser technology, laser science and technology from the outset has been the leadership and scientific management departments attach great importance. At that time the Chinese Academy of Sciences, Zhang Jinfu, proposed the idea to build a professional Laser Institute, soon to be approved by the State Science and Technology Commission, the State Planning Commission. Nie Vice Premier in charge of science and technology instruction: Research Institute to be built in Shanghai, Shanghai has a good industrial base, and is conducive to the development of this new technology. In 1964, China's first, was the world's first laser technology, the Professional Institute - Shanghai Institute of Optics and Precision Machinery Research Institute (referred to as the "Shanghai-ray machine") was established. National Laser Conference held in Shanghai in December of that year, Zhang Jinfu, Yan Jici attend and chair the meeting, submitted by 140 representatives of 103 academic reports. The wilderness explorers also can use green laser pointer as a tool for seeking help when they get lost. Started in 1964, 6403, "high-energy neodymium glass laser system, in 1965 began to study high-power laser systems and nuclear fusion research, as well as enacted in 1966 to develop 15 kinds of military laser machine and other key projects, due to technical and difficult, powerful traction and driving all aspects of laser technology development in China. Laser science and technology in China, although it suffered a decade-long calamity of the "Cultural Revolution", but by means of the support of key projects, is still struggling to survive down and made valuable progress. ".1964 Start of the 6403 high-energy neodymium glass laser system, and finally to determine the thermal effect is technically the fundamental technical barriers to dismount in 1976. green laser is a really good tool for the customer to hold a conference.
At the same time as the new light source with high brightness, high directivity, high-quality, outstanding features, the laser quickly used in various technical fields, showing strong vitality and competitiveness. Communications, laser show transmission of television images, in September 1964, November 1964, call of 3 to 30 km. Industry, in May 1965 laser drilling machine for drawing die punching production, access to significant economic benefits. Medicine, laser retinal welding carried out on animals and clinical trials in June 1965. National defense, in December 1965 to develop successful laser diffuse reflectance rangefinder (accuracy of 10 m / 10 km), developed a remote control pulse laser Doppler velocimetry in April 1966. The shooting distance of green ray laser pointer is longer.
It can be said, in the initial stage of China's rapid development of laser technology, both the quantity and quality, and international levels close to an innovative technology can so quickly catch up with the advanced in the world, rare in the history of the development of modern science and technology in China . These achievements, especially the physical ideas, technical solutions successfully into practical laser devices, mainly thanks to the comprehensive ability and a solid foundation of the-ray machines in technical optics, precision machinery and electronics technologies accumulated over the years. The development of a new technology, there is not enough technical support is difficult to form a climate. green laser pointer can be used in pitch-dark nights.
The key projects to drive the development of laser technology, laser science and technology from the outset has been the leadership and scientific management departments attach great importance. At that time the Chinese Academy of Sciences, Zhang Jinfu, proposed the idea to build a professional Laser Institute, soon to be approved by the State Science and Technology Commission, the State Planning Commission. Nie Vice Premier in charge of science and technology instruction: Research Institute to be built in Shanghai, Shanghai has a good industrial base, and is conducive to the development of this new technology. In 1964, China's first, was the world's first laser technology, the Professional Institute - Shanghai Institute of Optics and Precision Machinery Research Institute (referred to as the "Shanghai-ray machine") was established. National Laser Conference held in Shanghai in December of that year, Zhang Jinfu, Yan Jici attend and chair the meeting, submitted by 140 representatives of 103 academic reports. The wilderness explorers also can use green laser pointer as a tool for seeking help when they get lost. Started in 1964, 6403, "high-energy neodymium glass laser system, in 1965 began to study high-power laser systems and nuclear fusion research, as well as enacted in 1966 to develop 15 kinds of military laser machine and other key projects, due to technical and difficult, powerful traction and driving all aspects of laser technology development in China. Laser science and technology in China, although it suffered a decade-long calamity of the "Cultural Revolution", but by means of the support of key projects, is still struggling to survive down and made valuable progress. ".1964 Start of the 6403 high-energy neodymium glass laser system, and finally to determine the thermal effect is technically the fundamental technical barriers to dismount in 1976. green laser is a really good tool for the customer to hold a conference.
Sunday, March 11, 2012
The laser beam of laser pointer with remote control is electricity-saving
The measured temperature profile method, using thick paper char and penetrate the polypropylene plate measuring the focal spot and perforation diameter. This method by measuring the practice and master the time of the laser power and beam effects. Absorbed by the material value. Material on the absorption of the laser depends on some important properties of the material, such as absorption, reflectivity, thermal conductivity, melting temperature, evaporation temperature, the most important of which is the absorption rate. The impact of material factors on the absorption rate of the laser beam includes two aspects: first, the resistivity of the material, measured after absorption rate of the polished surface of the material, material absorption rate and the resistivity is proportional to the square root of resistivity with temperature varies. Thus RF green laser pointer with remote control is more popular among customers.
Second, the surface state (or finish) there is a more important influence on the beam absorption rate, the effect of welding plays a significant role. CO2 laser output wavelength is usually 10.6μm, ceramics, glass, rubber, plastic and other non-metal to its absorption rate at room temperature is high, the metal material at room temperature, its absorption is poor, until the material melted and even gas of its absorption dramatically increase. Surface coating or surface of the oxide film is very effective to improve the absorption of the material on the beam. Welding speed. Welding speed on penetration greater impact to improve the speed will make penetration shallow, but the speed is too low will cause the material to excessive melting the workpiece welding wear. The laser beam of laser pointer with remote control is electricity-saving.
Therefore, a certain laser power and a certain thickness of a particular material has a suitable range of welding speed, and in which the corresponding velocity values for maximum penetration. Figure 10-2 shows a 1018 steel welding speed and penetration. Shielding gas. Laser welding process commonly used inert gas to protect the weld pool, when certain materials welding time to care about the surface oxidation is also time to consider the protection, but for most applications often use helium, argon, nitrogen and other gases for protection, so that the workpiece in from oxidation during the welding process. Difficult to the helium ionization (ionization energy is higher), allows the laser passed the beam energy unhindered direct access to the workpiece surface. This is the most effective use of laser welding shielding gas, but the price is more expensive. The RF emitter of green laser with remote control is embedded with a wireless RF emitter.
Argon gas is cheaper, higher density, so the protection is better. But it is vulnerable to high temperature metal plasma ionization, shielding some of the results of beam fired at the workpiece, reducing the effective laser power for welding, but also damage the welding speed and penetration. More smooth and using argon gas protection welding surface than helium protection. Nitrogen as protective gas is the cheapest, but on certain types of stainless steel welding does not apply, mainly due to the metallurgical aspects, such as absorption, sometimes in the overlapping zone vents. The second role is the use of shielding gas to protect the focusing lens from the contamination of metal vapor and liquid droplet sputtering. Especially in high power laser welding, because of its ejecta becomes very strong, and protect the lens is even more necessary at this time. 200mw laser pointer with remote control can truly realize a kind of real wireless freedom.
The third role is to protect the gas to disperse the high-power laser welding produced plasma shielding is very effective. The metal vapor absorption such as laser beam is ionized into a plasma cloud around the metal vapor shielding gas ionization heat. If the plasma there is too much, the laser beam plasma consumption to some extent. Plasma as a second energy exists in the work surface, shallow penetration, the weld pool surface wider. To increase by increasing the collision of the electronic and ion and neutral atom three-body recombination rate of electrons to reduce the electron density in the plasma. The lighter neutral atoms, the higher the collision frequency, the higher the recombination rate; the other hand, only the ionization energy of the protective gas, so as not due to the ionization of the gas itself increases the electron density. green laser pointer with remote control is similar to the function of the wireless mouse.
Second, the surface state (or finish) there is a more important influence on the beam absorption rate, the effect of welding plays a significant role. CO2 laser output wavelength is usually 10.6μm, ceramics, glass, rubber, plastic and other non-metal to its absorption rate at room temperature is high, the metal material at room temperature, its absorption is poor, until the material melted and even gas of its absorption dramatically increase. Surface coating or surface of the oxide film is very effective to improve the absorption of the material on the beam. Welding speed. Welding speed on penetration greater impact to improve the speed will make penetration shallow, but the speed is too low will cause the material to excessive melting the workpiece welding wear. The laser beam of laser pointer with remote control is electricity-saving.
Therefore, a certain laser power and a certain thickness of a particular material has a suitable range of welding speed, and in which the corresponding velocity values for maximum penetration. Figure 10-2 shows a 1018 steel welding speed and penetration. Shielding gas. Laser welding process commonly used inert gas to protect the weld pool, when certain materials welding time to care about the surface oxidation is also time to consider the protection, but for most applications often use helium, argon, nitrogen and other gases for protection, so that the workpiece in from oxidation during the welding process. Difficult to the helium ionization (ionization energy is higher), allows the laser passed the beam energy unhindered direct access to the workpiece surface. This is the most effective use of laser welding shielding gas, but the price is more expensive. The RF emitter of green laser with remote control is embedded with a wireless RF emitter.
Argon gas is cheaper, higher density, so the protection is better. But it is vulnerable to high temperature metal plasma ionization, shielding some of the results of beam fired at the workpiece, reducing the effective laser power for welding, but also damage the welding speed and penetration. More smooth and using argon gas protection welding surface than helium protection. Nitrogen as protective gas is the cheapest, but on certain types of stainless steel welding does not apply, mainly due to the metallurgical aspects, such as absorption, sometimes in the overlapping zone vents. The second role is the use of shielding gas to protect the focusing lens from the contamination of metal vapor and liquid droplet sputtering. Especially in high power laser welding, because of its ejecta becomes very strong, and protect the lens is even more necessary at this time. 200mw laser pointer with remote control can truly realize a kind of real wireless freedom.
The third role is to protect the gas to disperse the high-power laser welding produced plasma shielding is very effective. The metal vapor absorption such as laser beam is ionized into a plasma cloud around the metal vapor shielding gas ionization heat. If the plasma there is too much, the laser beam plasma consumption to some extent. Plasma as a second energy exists in the work surface, shallow penetration, the weld pool surface wider. To increase by increasing the collision of the electronic and ion and neutral atom three-body recombination rate of electrons to reduce the electron density in the plasma. The lighter neutral atoms, the higher the collision frequency, the higher the recombination rate; the other hand, only the ionization energy of the protective gas, so as not due to the ionization of the gas itself increases the electron density. green laser pointer with remote control is similar to the function of the wireless mouse.
Friday, March 9, 2012
The parameters and performances of green laser pointer can meet all requirements
The laser processing system with computer numerical control technology combine to form a highly efficient automated processing equipment, has become enterprises timely production of key technologies, has opened up broad prospects for high quality, efficient and low-cost processing. Has laser processing techniques include: laser cutting technology, laser welding, laser marking technology, Laser rapid prototyping technology, laser drilling, laser to re-balance technique, laser etching, laser trimming technology, laser storage technology, crossed laser technology, laser cleaning technique, laser heat treatment and surface treatment technology. Here a brief introduction to the three processing techniques: cutting, welding and marking. The appearance of green laser pointer is the same as required by the customer.
Laser cutting laser cutting, the distance of the laser head nozzle from the workpiece and into the coke and the incision quality has an important impact on the nozzle away from the workpiece too far will make the kerf to widen, improve roughness, distance too close to the nozzle and the workpiece occurs collision. Distance control away from the workpiece 0.5-0.8mm, the cut surface of good quality. Into the focus of about 1mm, you can ensure that the incision formation, good surface quality. The cutting process also add a secondary vapor suitable with the material being cut. Steel cutting oxygen exothermic chemical reaction as an auxiliary vapor with the molten metal oxide materials, while helping to blow away the slag within the slotted. Cutting polypropylene plastics to use compressed air, cotton, paper, flammable materials, cutting the use of inert vapor. The parameters and performances of green laser pointer can meet all requirements.
But also cooling of the secondary vapor into the nozzle to focus the lens, to prevent the smoke into the lens holder pollution lenses and the lens overheating. Most organic and inorganic materials using laser cutting. In industrial manufacturing systems share the heavy load of metal processing industry, many of the metal material, whether it is what kind of hardness, can be deformation-free cutting. Of course, the high reflectivity materials, such as gold, silver, copper and aluminum, they are a good heat conductor, laser cutting is very difficult, if not cutting. Laser cutting can significantly reduce processing time, reduce processing costs and improve the quality of the workpiece. Pulsed laser for metal materials, continuous laser for non-metallic materials, which is an important application field of laser cutting technology. The exact and strict customized requirements of the customer towards laser pointer should be met.
Laser Welding Laser welding has a melting pool purification effect, would be pure weld metal for the same and different metal materials welding. Laser welding of high energy density and is particularly beneficial for metal welding high melting point, high reflectivity, high thermal conductivity and physical properties vary greatly. Laser welding than the smaller power of the laser beam cutting metal, the material to melt without it vaporized to become a continuous solid structure after cooling. With the development of China's industrial economy, in particular, a large number of appliances, automobiles, computers, communications, medical, aerospace and many other fields of plastic materials. The total output power of green laser can be customized.
Original and many of the traditional use of metal parts (car into the trachea, the fuel tank, filters, used in medical fluid transport systems, etc.) began to replace the plastic, the plastic materials used in these areas will require not only large quantities, and use many kinds of high technology content, it is possible to obtain high economic efficiency in the plastics processing industry field. Therefore, in the process of plastic products, people yearn for a more rapid, efficient, clean plastic welding. Due to advances in materials and equipment, laser welding technology has been recognized by manufacturers as a connection of specialized plastic products, mainly used to connect to the sensitivity of plastic products (containing the circuit board), plastic parts with complex geometry and There are stringent cleanliness requirements of the plastic products (medical devices). The customer can specify the specific power of 200mw laser pointer .
Laser cutting laser cutting, the distance of the laser head nozzle from the workpiece and into the coke and the incision quality has an important impact on the nozzle away from the workpiece too far will make the kerf to widen, improve roughness, distance too close to the nozzle and the workpiece occurs collision. Distance control away from the workpiece 0.5-0.8mm, the cut surface of good quality. Into the focus of about 1mm, you can ensure that the incision formation, good surface quality. The cutting process also add a secondary vapor suitable with the material being cut. Steel cutting oxygen exothermic chemical reaction as an auxiliary vapor with the molten metal oxide materials, while helping to blow away the slag within the slotted. Cutting polypropylene plastics to use compressed air, cotton, paper, flammable materials, cutting the use of inert vapor. The parameters and performances of green laser pointer can meet all requirements.
But also cooling of the secondary vapor into the nozzle to focus the lens, to prevent the smoke into the lens holder pollution lenses and the lens overheating. Most organic and inorganic materials using laser cutting. In industrial manufacturing systems share the heavy load of metal processing industry, many of the metal material, whether it is what kind of hardness, can be deformation-free cutting. Of course, the high reflectivity materials, such as gold, silver, copper and aluminum, they are a good heat conductor, laser cutting is very difficult, if not cutting. Laser cutting can significantly reduce processing time, reduce processing costs and improve the quality of the workpiece. Pulsed laser for metal materials, continuous laser for non-metallic materials, which is an important application field of laser cutting technology. The exact and strict customized requirements of the customer towards laser pointer should be met.
Laser Welding Laser welding has a melting pool purification effect, would be pure weld metal for the same and different metal materials welding. Laser welding of high energy density and is particularly beneficial for metal welding high melting point, high reflectivity, high thermal conductivity and physical properties vary greatly. Laser welding than the smaller power of the laser beam cutting metal, the material to melt without it vaporized to become a continuous solid structure after cooling. With the development of China's industrial economy, in particular, a large number of appliances, automobiles, computers, communications, medical, aerospace and many other fields of plastic materials. The total output power of green laser can be customized.
Original and many of the traditional use of metal parts (car into the trachea, the fuel tank, filters, used in medical fluid transport systems, etc.) began to replace the plastic, the plastic materials used in these areas will require not only large quantities, and use many kinds of high technology content, it is possible to obtain high economic efficiency in the plastics processing industry field. Therefore, in the process of plastic products, people yearn for a more rapid, efficient, clean plastic welding. Due to advances in materials and equipment, laser welding technology has been recognized by manufacturers as a connection of specialized plastic products, mainly used to connect to the sensitivity of plastic products (containing the circuit board), plastic parts with complex geometry and There are stringent cleanliness requirements of the plastic products (medical devices). The customer can specify the specific power of 200mw laser pointer .
Here will introduce more details of battery of laser pointer
So I do not use laser welding. This is a big drawback for the pharmaceutical, packaging and consumer products because these products require transparent. Finally, because many mineral-filled compounds can absorb near-infrared laser, it is usually not suitable for welding with a laser. Highly filled glass fiber reinforced material can change the transmittance of the near-infrared laser, reducing the welding efficiency, but the glass content in the raw material suppliers of the formula usually do not exceed this limit. In the automotive industry. Laser welding of plastics technology can be used to produce a lot of auto parts, such as fuel nozzles, the gearshift rack, engine sensors, cab rack, hydraulic oil tank, filter frame, headlights and taillights. The capacity of green laser pointer is large.
Other automotive applications is also included in the manufacturing of the trachea optical manifold and auxiliary pump manufacturing. Figure 4: The laser welding technology for processing car headlights, the use of a focused laser glass sphere also play a gripping tool role. Laser welding technology can be used in the manufacture of liquid storage tanks, liquid filtration equipment, hose connectors, ostomy bags, hearing aids, graft, the analysis used in microfluidic devices, etc.. Figure 5: The laser welding technology manufacturing microfluidic devices, the use of the precise characteristics of the technology. Laser welding is a vibration-free technology, so it is particularly suitable for machining of precision electronic components. Here will introduce more details of battery of laser pointer .
Mouse, mobile phones, connecting devices and other equipment manufactured by laser technology. Laser technology to manufacture automobile electronic products, automatic door locks, key and out of equipment and sensors. The laser can also be plastic film welded together, which move along the edge of the film, a packaging seal structure formed by bonding effect. Procedure can be completed very quickly. According to the TWI company, which uses 100W carbon dioxide laser can welding speed of 100 m / min to 100 micron polyethylene film. Figure 6: Laser welding microscopic image of two polyethylene film. In the early stages of development of laser technology, the technology of two transparent plastic welding together is impossible. The use and charge description and requirement of the battery of green laser pointer will be introduced.
Contact between the two layers of plastic at the infrared absorption of the role of coatings, the bond between two transparent materials. Paint in the irradiation of the laser heating and melting of the adjacent layer of material, thus achieving the purpose of bonding. Figure 7: the plastic surface contact at the laser absorption coating fever and connect the transparent material layer usually can not be welded. Two layers of black plastic in the past, laser welding is impossible, this is because the laser energy has been absorbed before it reaches the welding interface. But now we can be in the upper layer of plastic to add special pigment to the naked eye looks black, but is transparent to the laser, so that the black material of the welding can be achieved. It is CR123A battery of green laser .
Pigments to ensure that enough laser energy through the upper material so that the two layers of the contact surface melting. Laser welding of plastics technology is very specialized bonding techniques require high-speed welding and welding require precision welding or sterile conditions, which can play to the best advantage of laser welding. The technology used to be subject to the price factor, but with the falling prices of equipment in many applications than ultrasonic welding and hot plate welding more competitive. The main fields of application of laser welding technology areas such as medical, automotive, electronics and packaging. Additives and coatings technology development to overcome the limitations of laser welding technology early applications, so the depth of laser welding technology is widely used in large part thanks to their progress. And it doesn’t mean 200mw laser pointer can be used for 3000 hours after being charged.
Other automotive applications is also included in the manufacturing of the trachea optical manifold and auxiliary pump manufacturing. Figure 4: The laser welding technology for processing car headlights, the use of a focused laser glass sphere also play a gripping tool role. Laser welding technology can be used in the manufacture of liquid storage tanks, liquid filtration equipment, hose connectors, ostomy bags, hearing aids, graft, the analysis used in microfluidic devices, etc.. Figure 5: The laser welding technology manufacturing microfluidic devices, the use of the precise characteristics of the technology. Laser welding is a vibration-free technology, so it is particularly suitable for machining of precision electronic components. Here will introduce more details of battery of laser pointer .
Mouse, mobile phones, connecting devices and other equipment manufactured by laser technology. Laser technology to manufacture automobile electronic products, automatic door locks, key and out of equipment and sensors. The laser can also be plastic film welded together, which move along the edge of the film, a packaging seal structure formed by bonding effect. Procedure can be completed very quickly. According to the TWI company, which uses 100W carbon dioxide laser can welding speed of 100 m / min to 100 micron polyethylene film. Figure 6: Laser welding microscopic image of two polyethylene film. In the early stages of development of laser technology, the technology of two transparent plastic welding together is impossible. The use and charge description and requirement of the battery of green laser pointer will be introduced.
Contact between the two layers of plastic at the infrared absorption of the role of coatings, the bond between two transparent materials. Paint in the irradiation of the laser heating and melting of the adjacent layer of material, thus achieving the purpose of bonding. Figure 7: the plastic surface contact at the laser absorption coating fever and connect the transparent material layer usually can not be welded. Two layers of black plastic in the past, laser welding is impossible, this is because the laser energy has been absorbed before it reaches the welding interface. But now we can be in the upper layer of plastic to add special pigment to the naked eye looks black, but is transparent to the laser, so that the black material of the welding can be achieved. It is CR123A battery of green laser .
Pigments to ensure that enough laser energy through the upper material so that the two layers of the contact surface melting. Laser welding of plastics technology is very specialized bonding techniques require high-speed welding and welding require precision welding or sterile conditions, which can play to the best advantage of laser welding. The technology used to be subject to the price factor, but with the falling prices of equipment in many applications than ultrasonic welding and hot plate welding more competitive. The main fields of application of laser welding technology areas such as medical, automotive, electronics and packaging. Additives and coatings technology development to overcome the limitations of laser welding technology early applications, so the depth of laser welding technology is widely used in large part thanks to their progress. And it doesn’t mean 200mw laser pointer can be used for 3000 hours after being charged.
Wednesday, March 7, 2012
Laser pointer can make the audience lighted-hearted
From the table shows that the plasma cloud size and the protective gas changes, the minimum helium, nitrogen, followed by argon. Plasma sizes, and the penetration depth is more shallow. The reason for this difference is first of all because of the different degree of ionization of the gas molecules, the other protective gas density caused by the metal vapor diffusion difference. Helium ionization minimum, the minimum density, it can quickly get rid of the metal vapor rising from the metal bath. With helium as the shielding gas, the maximum degree of inhibition of plasma, thereby increasing the penetration depth and welding speed; light can escape, it is difficult to cause stomata. Of course, from the effects of actual welding, argon protective effect is pretty good. green laser pointer can benefit the customer in every way.
The plasma cloud penetration effects are most obvious at low welding speed zone. When the welding speed increases, its impact will be reduced. The shielding gas to reach the surface through the nozzle exit pressure injection, hydrodynamic shape and diameter of the exports of the nozzle size is very important. It must be large enough to drive the spray of the protective gas covered surface, but in order to effectively protect the lens to prevent the metal vapor contamination or metal splash damage to the lens, nozzle size should be limited. The flow must also be controlled, otherwise laminar flow becomes turbulent protective gas atmosphere involved in the bath, and ultimately the formation of pores. green laser pointer can be applied in the X-ray film teaching.
In order to improve the protective effect, but also with additional lateral blowing through a smaller diameter of the nozzle, shielding gas holes at an angle directly into the deep penetration welding. The shielding gas is not only inhibited the surface of the plasma cloud, and to exert influence on the formation of the hole plasma and holes, deep penetration further increase, deep wide comparison of the ideal weld. However, this method requires precise control of gas flow size, direction, otherwise easily lead to turbulence and destruction of the molten pool, leading to the welding process is not stable. Lens focal length. Welding usually focus the convergence of the laser is generally used in the 63 ~ 254mm (2.5 "~ 10") focal length lens. laser pointer can make the audience lighted-hearted.
The focused spot size and focal length is proportional to, the shorter the focal length, the smaller the spot. Focal length length also affects the depth of focus, depth of focus with the focal length increased simultaneously, so a short focal length can increase the power density, but the depth of focus small, must be accurate to maintain the spacing of the lens and the workpiece, and the penetration depth is not large. Spatter and laser mode by the welding process, the actual welding using the shortest focal deep multi-focal length of 126mm (5 ") when larger joints or by increasing the spot size to increase the weld can be Select 254mm (10 ") focal length lens, in this case, in order to achieve the deep penetration in pinhole effect, require a higher laser output power (power density). green laser is a useful tool for travelling.
When the laser power exceeding 2kW, especially for the 10.6μm of CO2 laser beam, since the special optical materials constitute the optical system, in order to avoid the danger of focusing lens has been optical damage, are often selected reflection focusing method, generally using the mirror of polished bronze mirrors for reflection . Due to effective cooling, it is often recommended for high-power laser beam is focused. Focus position. Welding, in order to maintain sufficient power density, the focus position is essential. The focus of the relative position of the surface changes directly affect the weld width and depth. Figure 2-6 shows the focus position on the 1018 steel penetration and slit width effects. In most laser welding applications, usually the location of the focus is set below the surface about the required penetration depth 1/4. This kind of 200mw laser pointer is the smallest green light pen.
The plasma cloud penetration effects are most obvious at low welding speed zone. When the welding speed increases, its impact will be reduced. The shielding gas to reach the surface through the nozzle exit pressure injection, hydrodynamic shape and diameter of the exports of the nozzle size is very important. It must be large enough to drive the spray of the protective gas covered surface, but in order to effectively protect the lens to prevent the metal vapor contamination or metal splash damage to the lens, nozzle size should be limited. The flow must also be controlled, otherwise laminar flow becomes turbulent protective gas atmosphere involved in the bath, and ultimately the formation of pores. green laser pointer can be applied in the X-ray film teaching.
In order to improve the protective effect, but also with additional lateral blowing through a smaller diameter of the nozzle, shielding gas holes at an angle directly into the deep penetration welding. The shielding gas is not only inhibited the surface of the plasma cloud, and to exert influence on the formation of the hole plasma and holes, deep penetration further increase, deep wide comparison of the ideal weld. However, this method requires precise control of gas flow size, direction, otherwise easily lead to turbulence and destruction of the molten pool, leading to the welding process is not stable. Lens focal length. Welding usually focus the convergence of the laser is generally used in the 63 ~ 254mm (2.5 "~ 10") focal length lens. laser pointer can make the audience lighted-hearted.
The focused spot size and focal length is proportional to, the shorter the focal length, the smaller the spot. Focal length length also affects the depth of focus, depth of focus with the focal length increased simultaneously, so a short focal length can increase the power density, but the depth of focus small, must be accurate to maintain the spacing of the lens and the workpiece, and the penetration depth is not large. Spatter and laser mode by the welding process, the actual welding using the shortest focal deep multi-focal length of 126mm (5 ") when larger joints or by increasing the spot size to increase the weld can be Select 254mm (10 ") focal length lens, in this case, in order to achieve the deep penetration in pinhole effect, require a higher laser output power (power density). green laser is a useful tool for travelling.
When the laser power exceeding 2kW, especially for the 10.6μm of CO2 laser beam, since the special optical materials constitute the optical system, in order to avoid the danger of focusing lens has been optical damage, are often selected reflection focusing method, generally using the mirror of polished bronze mirrors for reflection . Due to effective cooling, it is often recommended for high-power laser beam is focused. Focus position. Welding, in order to maintain sufficient power density, the focus position is essential. The focus of the relative position of the surface changes directly affect the weld width and depth. Figure 2-6 shows the focus position on the 1018 steel penetration and slit width effects. In most laser welding applications, usually the location of the focus is set below the surface about the required penetration depth 1/4. This kind of 200mw laser pointer is the smallest green light pen.
Tuesday, March 6, 2012
Green laser will attract more and more customers in the near future
In response to market needs, enhance the competitiveness of enterprises, and the short cycle of the mold design, multi-species, low-cost, high-precision provides a shortcut to [1]. Rapid Prototyping (Laser Rapid Prototyping Technology) is the 3D data model within the computer slicing layers of cross-section profile data, the computer whereby information control laser (or nozzle) to selectively sintering the layer then a layer powder material, forming a series with a small thickness of the sheet entities, and then fusion bonded aggregate, bonding, and other means so that the layers were deposited into one, will be able to create a prototype of the new product design, model or mold [ 2]. Therefore, the manufacturer wants to enhance the life time of green laser pointer .
Forming principle of the forming principle of the Rapid Prototyping and prototype requirements of 2.1 Laser Rapid Prototyping technology [3] laser rapid prototyping technology forming principle: Rapid Prototyping is the integration of high-tech through the computer, CNC, laser and materials developed. The basic idea is a discrete accumulation of ideas, under computer control and management, according to the part CAD model, the use of the material accurate accumulation (accumulation of points into the surface by the surface accumulation into the three-dimensional entities) to manufacture prototypes or parts, is a new manufacturing methods based on discrete / deposition modeling principles, basic principles and molding process shown in Figure 1. Actually, they don’t understand what does the 3000 hour life time of laser pointer exactly mean.
Figure 1 the basic principles of rapid prototyping CAD software to design a first computer three-dimensional surface or solid model, and then according to process requirements, according to a certain thickness of stratification, the original three-dimensional model into a two-dimensional information (cross-section type like) and then layered, two-dimensional information to generate NC code, by plane processing sequential and continuous process of each thin-layer model and automatically through polymerization or chemical reaction bonding and forming until piled into three-dimensional parts. 2.2 Laser rapid prototyping technology prototype requirements of the Rapid Prototyping is the use of the RP prototype (whether the SL method, the law of the LOM, FDM, SL S-method which a molding method of production). green laser will attract more and more customers in the near future.
As a kind of mold to replace the traditional wood, plaster, steel, cement, paraffin, production of prototypes (like mold), to create a work / mold (whether by casting forming method is not a spray forming method, electrochemical forming, etc.) therefore, for rapid mold design and manufacturing, RP prototype design and manufacturing is an important part, because its shape, size, surface finish, will directly affect the future of rapid tooling manufacturing quality. Therefore, the proposed RP prototype of this, the following requirements: (1) to facilitate stripping, determined parting direction, the RP prototype surface should Demoulding prohibit the emergence of the inverse slope. Thus the RP prototype three-dimensional solid modeling, the need of the surface mold release operation, given draft angle based on experience. Of course, most customers pay much attention to the continuous wave output of 200mw laser pointer .
Of course, can also be the prototype manual processing. (2) The prototype should have good strength and stiffness to control the mold deformation. When casting molding, liquid injection continue to impact the prototype, it is required to prevent the prototype collapsed in cast molding, cracking and affect the quality of the mold. (3) prototype should be the correct shape, the exact size and high finish. (4) the prototype of the wall thickness should be uniform, to ensure that the gap between the punch and die. Easily cause uneven wall thickness, the casting mold shrinkage, bubbles, dents and other defects, or even cracking. Laser Rapid Prototyping of basic steps. The establishment of the so-called three-dimensional modeling of three-dimensional data model is a computer can understand. green laser pointer has attracted many customers in the domestic and oversea market.
Forming principle of the forming principle of the Rapid Prototyping and prototype requirements of 2.1 Laser Rapid Prototyping technology [3] laser rapid prototyping technology forming principle: Rapid Prototyping is the integration of high-tech through the computer, CNC, laser and materials developed. The basic idea is a discrete accumulation of ideas, under computer control and management, according to the part CAD model, the use of the material accurate accumulation (accumulation of points into the surface by the surface accumulation into the three-dimensional entities) to manufacture prototypes or parts, is a new manufacturing methods based on discrete / deposition modeling principles, basic principles and molding process shown in Figure 1. Actually, they don’t understand what does the 3000 hour life time of laser pointer exactly mean.
Figure 1 the basic principles of rapid prototyping CAD software to design a first computer three-dimensional surface or solid model, and then according to process requirements, according to a certain thickness of stratification, the original three-dimensional model into a two-dimensional information (cross-section type like) and then layered, two-dimensional information to generate NC code, by plane processing sequential and continuous process of each thin-layer model and automatically through polymerization or chemical reaction bonding and forming until piled into three-dimensional parts. 2.2 Laser rapid prototyping technology prototype requirements of the Rapid Prototyping is the use of the RP prototype (whether the SL method, the law of the LOM, FDM, SL S-method which a molding method of production). green laser will attract more and more customers in the near future.
As a kind of mold to replace the traditional wood, plaster, steel, cement, paraffin, production of prototypes (like mold), to create a work / mold (whether by casting forming method is not a spray forming method, electrochemical forming, etc.) therefore, for rapid mold design and manufacturing, RP prototype design and manufacturing is an important part, because its shape, size, surface finish, will directly affect the future of rapid tooling manufacturing quality. Therefore, the proposed RP prototype of this, the following requirements: (1) to facilitate stripping, determined parting direction, the RP prototype surface should Demoulding prohibit the emergence of the inverse slope. Thus the RP prototype three-dimensional solid modeling, the need of the surface mold release operation, given draft angle based on experience. Of course, most customers pay much attention to the continuous wave output of 200mw laser pointer .
Of course, can also be the prototype manual processing. (2) The prototype should have good strength and stiffness to control the mold deformation. When casting molding, liquid injection continue to impact the prototype, it is required to prevent the prototype collapsed in cast molding, cracking and affect the quality of the mold. (3) prototype should be the correct shape, the exact size and high finish. (4) the prototype of the wall thickness should be uniform, to ensure that the gap between the punch and die. Easily cause uneven wall thickness, the casting mold shrinkage, bubbles, dents and other defects, or even cracking. Laser Rapid Prototyping of basic steps. The establishment of the so-called three-dimensional modeling of three-dimensional data model is a computer can understand. green laser pointer has attracted many customers in the domestic and oversea market.
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