the formation of partial melting

 Figure shown in Figure 2, the workpiece pressure placed between two electrodes, and welding through to the current use of the heat generated by the current through the resistance of the workpiece itself to heat the formation of partial melting, cooling power outages. While the laser pointer is the focusable type, which means the focus of the laser pointer can be adjusted,  laser pointer might light the match.
Form solid joints in the role of pressure to continue this process of resistance welding. Figure 2 resistance welding schematic shows, resistance has the following characteristics: (1) the use of current through the resistance of the workpiece welding heat on the workpiece heating. That the heat is not derived from the workpiece, but the internal heat source. (2) the entire welding process is done under pressure, which must be pressure. (3) welding without adding any filler material, but also without any protective agent. Many different types of resistance welding can be divided into two kinds of lap resistance welding and butt resistance welding joint form. The combination of technologies and methods, lap resistance welding can be divided into spot welding, seam welding and projection welding three butt resistance welding generally Resistance butt and flash butt welding two kinds. After the focus has been adjusted and the energy of the laser beam light of laser pointer is concentrated into a small dot. It is the quality inspection of laser pointer
Laser welding as shown in Figure 3, when the power density of laser irradiation to the metal surface is greater than 1000000W/cm2 metal surface temperature within a very short time (/ 1000000 1/100000s) rises to the melting point and boiling point above its melting and gasification, the formation of liquid metal and metal vapor, metal vapor can produce enough pressure to overcome the surface tension and gravity of the liquid metal, which arranged the part of the liquid metal, so that the laser molten pool concave, forming holes . The laser beam heating on the bottom of the hole, the metal liquefaction and vaporization of metal vapor produced by the continued oppression of the liquid metal of the bottom of the pit and it came around to the bath (or overflow), so that the holes further deepened. The dot or picture emitted by laser pointer can be adjusted when adjusting the focus of the laser pointer.
This process is continuous and proceed, in the liquid metal to form a slender holes. When the laser beam generated in the holes of the metal vapor pressure and liquid metal surface tension and gravity balance, the holes are no longer enhance the formation of a stable depth of the hole, which is the effect of holes.

a lunar orbiting spacecraft and a variety of satellite

Billion yuan to build railway transport, billion to water conservancy projects; 300 mechanical plant will be considerable technological innovation, and Buy the number of new manufacturing equipment, domestic house mechanical plant will be technological innovation, and purchase new manufacturing equipment, a significant number, 10,000, 100 million yuan in urgent need of high-precision, high-efficiency, about 17,000 of the existing mold factory, annual output of about 53 billion yuan, in urgent need of precision, high efficiency, high-speed equipment to upgrade the existing level of production technology. The high-speed equipment to upgrade the existing level of production technology. "Eleventh Five-Year period will launch a lunar orbiting spacecraft and a variety of satellite, is the shock to the 11th Five-Year" will be launched during the lunar orbiting spacecraft and a variety of satellite aerospace industry needed for development during the Eleventh Five will launch a lunar orbiting spacecraft and a variety of satellite . The goggle is mainly equipped for the high power laser pointer . This kind of  laser pointer  has the very special green laser head
Optical processing of a golden opportunity to the effectiveness of the special equipment. Eleventh Five "China's shipbuilding industry will be during the" Eleventh Five-Year period, optical processing of the effectiveness of the special equipment a golden opportunity. During the Eleventh Five-Year Development tons raised to the forefront of the world rankings. The development of shipbuilding tonnage will be 10 million tons raised to the forefront of the world rankings. The automotive industry during the "Eleventh Five-Year period with an annual output will reach the million, the industry in the Eleventh Five-Year" with an annual output will reach 10 million automobile spare parts production also will be a substantial $ 1.1 plus. Electronic information required for equipment manufacturing industry is small, micro, special processing equipment, 99% of electronic information required for equipment manufacturing small, miniature, specialty processing equipment. The goggle of laser pointer can protect the safety and security of the user or customer.
The above dependence on imports, worth laser processing manufacturers pay enough attention and joint research, to be suddenly more dependent on imports, it is worth laser processing manufacturers pay enough attention and joint research, 100.

the goggles of laser pointer

State Key development projects. The expansion of market demand: With China's rapid economic development and domestic global manufacturing base regulation as China's rapid economic development and the rapid expansion of the domestic scale of the global manufacturing base for global manufacturing base, China will quickly become the world's lasers and laser processing equipment applications The mode of rapid expansion of China will quickly become an important market for global lasers and laser processing equipment applications. Some kinds of laser pointer should be equipped with some useful and protective accessories.
China's laser processing equipment industry to maintain rapid growth mainly two drive market. Force, the new demand and replacement demand. New demand and replacement demand. New demand mainly refers to the technically demanding industrial processing operations must use the laser processing equipment to complete accuracy requires a very industrial processing operations must be the use of laser processing equipment to complete high laser welding, laser drilling and laser surface heat treatment. Alternative to the demand side, the laser welding, laser drilling and laser surface heat treatment. Alternative demand side, China is in a critical period of manufacturing industry to upgrade. The useful accessories contain the rechargeable battery, charger and goggle and as well as case easy to carry around.
Facing a large number of backward production technology upgrade for China in the manufacturing industry to upgrade the critical period, the urgent task of the generation of laser drilling, on behalf of the urgent tasks, such as high-power metal cutting and PCB laser drilling and other traditional processing equipment alternative upgrade needs is an important factor in China's laser processing equipment industry growing faster than the international level. An important factor in the interpersonal level. According to reports, the 2020 will achieve 70% ~ 80% of the manufacturing equipment by domestic supply. Manufacturing equipment of the ten manufacturing equipment mainly by domestic supply. According to reports, the main domestic supply, such as the 10 period, 100 million, Five-Year "period, only the western railway development already invested 100 billion yuan in the next few years will be invested during 7000 ~ 800 billion yuan to build railway transportation, the next five years will invest 530 billion to water conservancy projects. Here will introduce the goggles of laser pointer .

precision measurements of the hologram

Issued by the He-Ne laser beam direction and the color is good, you can work continuously, so this laser is in use today most laser, mainly used in precision measurements of the hologram, quasi-direct positioning. Another typical representative of gas lasers, argon ion laser. The technology development of Laser Pointer has been finished.
It can send the bright blue-green shade, continuous operation, output power of over 100 watts. This laser is a laser output power in the visible region. It sends the laser is blue-green, used in ophthalmology on the largest response to blue-green because the human eye is very sensitive, and the retinal heme, lutein can absorb green light. Thus, the argon ion laser eye surgery, can be formed quickly localized heating, the proteins in the retina into a gel state, it is the ideal light source for welding the retina. Argon ion laser emits blue-green laser is also in-depth seawater, rather than be absorbed by seawater, which can be widely used in underwater survey operations. The net weight of Laser Pointer should be calculated independently.
Dye lasers, liquid lasers, also known as the type of laser active material is a certain organic dyes dissolved in ethanol, methanol, water and other liquids in the formation of the solution. In order to stimulate them to emit laser commonly used high-speed flash laser source, issued a very short light pulses or by other lasers. Liquid lasers emit laser spectroscopy, laser chemistry and other scientific research is of great significance. Chemical laser is a chemical reaction to generate the laser. Chemical reaction, such as fluorine atoms and hydrogen atoms, can generate hydrogen fluoride molecules in the excited state. Thus, when the rapid mixing of two gases, will be able to produce laser, so no other energy can be a very powerful light energy directly from chemical reactions. The package information of Laser Pointer should be observed strictly.
Such lasers are more suitable for field work, or for military purposes, and feared the death ray weapon is a result of application of chemical lasers. Some of today's lasers, semiconductor, made of. Their small size, long life, and incentives (usually electrical stimulation), low threshold current, easy-to large-scale production, the output of the early semiconductor lasers laser coherence, directional performance is poor, compared with output frequency of the laser types small, mostly in the infrared region, but now, with further research and semiconductor diode laser. The gross weight of Laser Pointer is 500g.

the micro-particle energy distribution

IPG produced YLR series represents a revolutionary new generation of near infrared spectroscopy, high-power, ideal beam quality, fiber optic, high electro-optical conversion efficiency characteristics of diode-pumped single-mode continuous-wave ytterbium-doped fiber laser systems. The type of laser system demonstrated high reliability unmatched by a variety of other solid-state lasers and gas lasers. This advanced fiber-optic laser system with a variety of impressive superiority. The cursor control technology is applicable to Laser Pointer .
A wide operating wavelength selection, low amplitude noise, high stability and ultra-long pump diode life. Application areas: electronic hardware, the phone keypad, medical device, product packaging, glasses, clocks, car accessories, online production, gifts and advertising material detection. YLM series is mainly designed for maintenance-free OEM applications. YLM diode-pumped fiber laser with through a metal sheathed single mode fiber optic beam diameter of 1.07 micron, close to the diffraction limit (M2 <1.05), high-quality laser beam. This small size, maintenance-free laser for high-impact, vibration and dust such situations, can tolerate a 90% relative humidity, and can work under wide temperature conditions of -20 to 60 degrees Celsius.  Laser Pointer  also integrates the wireless keyboard control technology.
YLM Series lasers can be directly used for system integration of micro-machining, engraving, material handling, and marking and other purposes. Since then, the establishment and development of the quantum mechanics of material microstructure and the law of motion have a better understanding of the micro-particle energy distribution, transition and photon radiation has also been more eloquent testimony to this is also an objective on a more complete Einstein's theory of stimulated emission, and further laid the theoretical foundation for the generation of lasers. The late 1940s, after the birth of quantum electronics, was soon applied to study the interaction of electromagnetic radiation with a variety of micro-particle system, and developed many of the devices. The rapid development of scientific theory and technology to create the conditions for the invention of the laser.  Laser Pointer  can be widely used in teaching institutions. The net weight of Laser Pointer should be calculated independently. Gas lasers. In gas lasers, the most common helium-neon laser. The first helium-neon laser in the world following the first ruby laser in the Bell Laboratories in the U.S. in 1960 by Iranian physicist Jia Wan made.

the quality assurance document of Laser Pointer

 Summer recycled water is distilled water can be changed once a month, if it is pure water change at least once a week. RF laser power supply voltage, and external interference signals are sensitive to use make sure the power supply voltage in the required range and reliable grounding. Before starting work, first open the chiller to the laser through cooling water, and then turn the laser power button, and finally re-open the controller power supply. The dispatcher has prepared the working time table of Laser Pointer well.
After use, turn off the controller power supply, then turn off the laser power, do not immediately cut off the circulation of the coolant should be allowed to run for several minutes, the laser to cool down, then promptly cut off the chiller. Unused for long periods, must turn off the laser window or laser window stickers with adhesive tape to prevent dust from entering the damaged laser window, mirror, and also emptying the laser cooling water and cut off the power. Use lasers to protect the stickers peeled off the laser window. Long-term without re-use of lasers, laser energy should first adjust to lower light work for some time and then return to normal conditions. Must at all times keep the environment clean, tidy and free of dust. The shoe for the worker in the Laser Pointer workshop is specially made.
Laser surface dust particles, Do not try to wipe the lens with a cotton swab or other things, the correct way is the surface of the lens with high-pressure nitrogen gas blowing. To prevent the installation or removal lasers, the laser distorted by external forces, will cause the optical resonator deformation occurs, the proposed installation when the first laser direct connection components to connect to the laser, then the overall installation to the device, demolition also do to the case. Any time not to damage the integrity of the warranty label on the laser, not the warranty on the label affixed to any other label, a label destruction may lead to the effectiveness of the laser to lose the warranty. The workshop has imported a set of very advanced equipment of process Laser Pointer .  The customer wants to check the quality assurance document of Laser Pointer
Semiconductor laser-assisted lighting paper: Semiconductor laser-assisted lighting key technologies. Active infrared night vision technology is more and more extensive applications in today's world, countries are given a very big concern. Auxiliary lighting as an important part of the active infrared night vision technology, the pros and cons of lighting effects directly affect the night vision system of the line of sight. According to the principle of line-of-sight theory, this paper discusses the 808nm semiconductor laser as an auxiliary lighting lighting effects. Analysis of the characteristics of the semiconductor laser output beam uniformity. The director answered the customer’s questions about the data on the drawing of Laser Pointer .

the output of Laser Pointer

Photodetector output light current; the additive noise introduced in the completion of the photoelectric conversion process should be as small as possible; fast response photodetector output photocurrent as much as possible to reproduce the waveform of the incident signal; stable reliable, good temperature stability and a longer working life. Finally talk about the packaging and lifetime of the laser components, the shell of the semiconductor laser package coaxial, dual in-line and butterfly three categories. The coaxial package assembly without semiconductor thermoelectric cooler and thermistor, is the simplest form of lasers, in CATV. The lean production of Laser Pointer has raised the output of Laser Pointer . The quality assurance of Laser Pointer has the high and strict requirement
Coaxial package is generally used for the return of two-way optical receiver module. The shortcomings of the dual in-line package is quite a long lead from the welding die Vice heat sink to the shell pin, coupled with the pin and very long lead inductance, this package does not apply to signal frequency is higher than 500MHZ for the occasion. Laser components commonly used in CATV optical transmitter applications butterfly package. As a result of lateral pin butterfly package pins from the die to the lead shorter, flat pin can be included into the external circuit of the PCB, as part of the microstrip line, so this structure the lead inductance and stray capacitance.  Laser Pointer is necessary to the large scale examination.
RF laser Notes (V1.2). Coolant temperature should be controlled between 15 ~ 30 ℃, if the ambient temperature are between 15 ~ 30 ℃ coolant temperature should be with them flat; If the ambient temperature is below 15 ° C or higher than 30 ° C (ambient temperature to allow range: 5 ~ 40 ° C), coolant lowest only to 15 ° C, up to 30 ℃. The principle is to avoid dew condensation lasers will be 100% damage to the laser. Especially in summer, when the dew point is higher than 30 degrees, it is necessary to stop using, or install air conditioning to reduce the temperature and humidity, thereby reducing the dew point. Do not use the laser, the coolant will be easier to cause condensation finished using the laser to cut off the chiller. The quality assurance of Laser Pointer has the high and strict requirement.
Recycled water only with distilled water or purified water, you can not use tap water, groundwater instead. The best is distilled water, pure water filter water as impurities and microorganisms equipment. If it does not distilled water, you can use purified water for drinking, but not recommended.