2017年11月10日
Laser Transverse Electric Field
This technology in the application of the performance of fast, save money, does not depend on any form, can be installed strong, high efficiency and good security. Once the task negotiated, within 24 ~ 36h to complete a single piece of processing. In the commissioning of hardening processing services, the standard range of daily processing tasks is from the small changes in the size of the precision components, until the large pump chassis, rope pulley and hundreds of kilograms of large die for processing. In order to improve component rigidity and reduce component thickness to save material during high quality hardening processes, functional levels such as cutting and quality-free stabilizers are applied. The structural stabilizer is a strong burning laser pointer trajectory that produces a high rigidity and a low vibration tendency within the component, which can be used in component design concepts and FEM analysis.
As the high energy density positron research in the military, materials, energy and other fields of science has important strategic significance and application prospects, the field has become the international high-energy physics research hot and difficult. Einstein's energy equation tells us that matter and energy can be transformed into each other. According to the quantum electrodatics we have known that super-intense laser can tear the vacuum to produce positive and negative electron pairs, but the required laser intensity is at least seven orders of magnitude higher than the laser energy available in the current laboratory. This greatly limits the effort to artificially generate high-energy-density positrons.
When the radiation damping force is much larger than the lateral mass of the laser, the electrons are directly captured by the laser field to form a high energy density electron beam mass with a density of up to 40 times the critical density. These electrons, while accelerating in the direction of high power laser pointer propagation, oscillate under the action of the laser transverse electric field to radiate high-energy photons outward. Three - dimensional numerical simulation results show that the number of photons is up to 850 times the critical density, the total number of photons is 1015 orders of magnitude. Due to the symmetry of the scheme, the high-energy photons formed on both sides will produce a large number of high-energy positive and negative electron pairs directly to the propagating laser photons.
The advantage is that its pulse width and frequency are independently adjustable, adjust one of them does not affect the other laser parameters, which is Q-switched structure of the laser does not have. And this feature, to the stainless steel color marking with unlimited possibilities. In the actual marking operation, pulse width, frequency, power, speed, fill the way, fill the pitch, delay parameters and so on these factors will affect the color effect. It is understood that this ultra-short laser drive generated by the ultra-short pulse, high-quality high-energy proton beam can also be applied to proton photographic and material testing, laser nuclear fusion fast ignition, laboratory astrophysics, laser nuclear physics and nuclear medicine aspects of the study.
In 2016, SLM system sales of more than 1000, which uses the laser source is mainly fiber laser, disc laser / CO2 laser and femtosecond fiber laser, power range of 30W to 1kW or more. 3D printing of the fine degree is also getting higher and higher, print out the fine structure of the resolution has reached the order of microns. The next five years, the market will grow steadily, and the main driver of market growth comes from unmanned aerial vehicles, autopilot vehicles, robots, military and security. Part of the red laser lighting market is car laser lighting, mainly car headlights. BMW, Audi and other well-known car manufacturers have adopted a laser lighting system. Another part of the market is safe laser lighting, such as the night environment for people riding a warning sign.
As the high energy density positron research in the military, materials, energy and other fields of science has important strategic significance and application prospects, the field has become the international high-energy physics research hot and difficult. Einstein's energy equation tells us that matter and energy can be transformed into each other. According to the quantum electrodatics we have known that super-intense laser can tear the vacuum to produce positive and negative electron pairs, but the required laser intensity is at least seven orders of magnitude higher than the laser energy available in the current laboratory. This greatly limits the effort to artificially generate high-energy-density positrons.
When the radiation damping force is much larger than the lateral mass of the laser, the electrons are directly captured by the laser field to form a high energy density electron beam mass with a density of up to 40 times the critical density. These electrons, while accelerating in the direction of high power laser pointer propagation, oscillate under the action of the laser transverse electric field to radiate high-energy photons outward. Three - dimensional numerical simulation results show that the number of photons is up to 850 times the critical density, the total number of photons is 1015 orders of magnitude. Due to the symmetry of the scheme, the high-energy photons formed on both sides will produce a large number of high-energy positive and negative electron pairs directly to the propagating laser photons.
The advantage is that its pulse width and frequency are independently adjustable, adjust one of them does not affect the other laser parameters, which is Q-switched structure of the laser does not have. And this feature, to the stainless steel color marking with unlimited possibilities. In the actual marking operation, pulse width, frequency, power, speed, fill the way, fill the pitch, delay parameters and so on these factors will affect the color effect. It is understood that this ultra-short laser drive generated by the ultra-short pulse, high-quality high-energy proton beam can also be applied to proton photographic and material testing, laser nuclear fusion fast ignition, laboratory astrophysics, laser nuclear physics and nuclear medicine aspects of the study.
In 2016, SLM system sales of more than 1000, which uses the laser source is mainly fiber laser, disc laser / CO2 laser and femtosecond fiber laser, power range of 30W to 1kW or more. 3D printing of the fine degree is also getting higher and higher, print out the fine structure of the resolution has reached the order of microns. The next five years, the market will grow steadily, and the main driver of market growth comes from unmanned aerial vehicles, autopilot vehicles, robots, military and security. Part of the red laser lighting market is car laser lighting, mainly car headlights. BMW, Audi and other well-known car manufacturers have adopted a laser lighting system. Another part of the market is safe laser lighting, such as the night environment for people riding a warning sign.
タグ ：laser
2017年05月20日
Why the laser TV can challenge the LCD TV
First, not the same place is the light source, laser light source life is very long, easily tens of thousands of hours to laser TV life comparable to LCD TV. Can be said that a laser TV use a three or five years is not a problem, no longer worry about the problem of light, this life cycle has been enough, after all, not all families have to use a TV for 10 years 20 years. Second, the 30mw green laser TV is a reflection of the ultra-short focus of the technology of the projector, this ultra-short focal length laser TV can be achieved within 0.5 meters distance of 100 inches of the screen. In other words, laser TV can be placed in the TV cabinet on the projection of 100 inches, in the past the projector hoisting in the middle of the living room situation gone.
These two points can be said that the fundamental advantage of laser TV, while laser TV products are constantly improving. We combined with the latest developments in the industry to talk about why the laser TV dare to challenge the LCD TV.
Laser TV is a big advantage of large size, the recent brand has released a 75-inch TV, priced at 20,000 yuan, the price is very amazing. But the laser TV can easily achieve 100 inches, and the size of the laser TV, LCD TV is not always the opponent. The price of the problem we will say, we first talk about another problem can not be ignored: the brightness problem.
Laser TV is able to achieve 100-inch screen, but the screen brightness enough? Brightness is not enough, the screen size is large, but the display is difficult to guarantee. So the brightness is not high, is a laser TV challenge a foundation of LCD. Now the 100mw laser pointer TV brightness is basically 3000 lumens. But the rapid development of laser light technology is expected in the second half of the release of new products, many began to configure a 4000 or even 5000 lumens of brightness. This brightness and then with the anti-light curtain, even if the lights to watch, the effect is also very to force. Laser TV brightness breakthrough so that this product no longer appear during the day can not be used at night must be dark paint to show the situation. So the brightness of the breakthrough is always a main line of laser TV, it is gratifying that the current laser light source brightness breakthrough faster. It is clear that the development of laser TV is not subject to brightness and stagnation.
LCD TV can also achieve 75 inches, but the product is very large, the weight is not light, coupled with handling and installation, energy consumption and other issues, it can be said that once the LCD TV size, and many problems will follow. Laser TV is different, projection 80 inches and projection 100 inches of energy consumption is the same. And the size of the blue laser pointer TV is very small, placed in the living room TV cabinet can be used, so when the installation is very simple. And with the continuous optimization of the projection chip, as well as the development of optical system, the future of the laser TV can also be smaller. Small volume of laser TV is bound to be able to adapt to more use of the environment.
At the same time the price of laser TV is declining rapidly. These days 75-inch LCD TV price of 20,000 yuan is very pleasant surprise. But according to the latest understanding of the author, the laser TV industry will soon launch a more surprising price of laser TV, the price is certainly lower than the 20,000 yuan, and to a lot lower. This new laser TV appeared, I believe that the challenge of laser TV LCD TV confidence is even more enough.
Laser TV is not only have their own table, in the content and the current smart TV no difference. Because the use of burning laser TV is the TV system, and even many TV brands are also launched laser TV. Their LCD TV and laser TV use the system is similar to the same resources to provide. So use the laser TV without worrying about no content. With the gradual enrichment of network resources, laser TV online can see a lot of high-definition content, the latest TV series, movies and entertainment programs can use the laser TV to watch. Past the projector needs a separate device, connect the player or a variety of boxes can see a large, this way OUT out. Laser TV is to see to see, do not worry about no see.
Now began to enter the laser TV market, many brands, on the one hand the brand will make more people understand the laser TV, will also let the price of laser TV; the other hand, many brands work together, laser TV this product is also the degree of improvement Will continue to improve. For example, many people are worried that before the laser TV will hurt the child's eyes, now has a brand can be introduced to the human body can function, as long as the head into the laser TV lens, the laser TV will automatically shut down. So even if the child naughty at home, it will not look directly at the eyes of the 200mw green laser situation.
Similar to the details of these optimization, is to solve the ordinary users of the use of laser TV pain points. The more brands concerned about this market, the product will be higher degree of improvement, it is no doubt. And this trend so that laser TV can gradually challenge the LCD TV.
These two points can be said that the fundamental advantage of laser TV, while laser TV products are constantly improving. We combined with the latest developments in the industry to talk about why the laser TV dare to challenge the LCD TV.
Laser TV is a big advantage of large size, the recent brand has released a 75-inch TV, priced at 20,000 yuan, the price is very amazing. But the laser TV can easily achieve 100 inches, and the size of the laser TV, LCD TV is not always the opponent. The price of the problem we will say, we first talk about another problem can not be ignored: the brightness problem.
Laser TV is able to achieve 100-inch screen, but the screen brightness enough? Brightness is not enough, the screen size is large, but the display is difficult to guarantee. So the brightness is not high, is a laser TV challenge a foundation of LCD. Now the 100mw laser pointer TV brightness is basically 3000 lumens. But the rapid development of laser light technology is expected in the second half of the release of new products, many began to configure a 4000 or even 5000 lumens of brightness. This brightness and then with the anti-light curtain, even if the lights to watch, the effect is also very to force. Laser TV brightness breakthrough so that this product no longer appear during the day can not be used at night must be dark paint to show the situation. So the brightness of the breakthrough is always a main line of laser TV, it is gratifying that the current laser light source brightness breakthrough faster. It is clear that the development of laser TV is not subject to brightness and stagnation.
LCD TV can also achieve 75 inches, but the product is very large, the weight is not light, coupled with handling and installation, energy consumption and other issues, it can be said that once the LCD TV size, and many problems will follow. Laser TV is different, projection 80 inches and projection 100 inches of energy consumption is the same. And the size of the blue laser pointer TV is very small, placed in the living room TV cabinet can be used, so when the installation is very simple. And with the continuous optimization of the projection chip, as well as the development of optical system, the future of the laser TV can also be smaller. Small volume of laser TV is bound to be able to adapt to more use of the environment.
At the same time the price of laser TV is declining rapidly. These days 75-inch LCD TV price of 20,000 yuan is very pleasant surprise. But according to the latest understanding of the author, the laser TV industry will soon launch a more surprising price of laser TV, the price is certainly lower than the 20,000 yuan, and to a lot lower. This new laser TV appeared, I believe that the challenge of laser TV LCD TV confidence is even more enough.
Laser TV is not only have their own table, in the content and the current smart TV no difference. Because the use of burning laser TV is the TV system, and even many TV brands are also launched laser TV. Their LCD TV and laser TV use the system is similar to the same resources to provide. So use the laser TV without worrying about no content. With the gradual enrichment of network resources, laser TV online can see a lot of high-definition content, the latest TV series, movies and entertainment programs can use the laser TV to watch. Past the projector needs a separate device, connect the player or a variety of boxes can see a large, this way OUT out. Laser TV is to see to see, do not worry about no see.
Now began to enter the laser TV market, many brands, on the one hand the brand will make more people understand the laser TV, will also let the price of laser TV; the other hand, many brands work together, laser TV this product is also the degree of improvement Will continue to improve. For example, many people are worried that before the laser TV will hurt the child's eyes, now has a brand can be introduced to the human body can function, as long as the head into the laser TV lens, the laser TV will automatically shut down. So even if the child naughty at home, it will not look directly at the eyes of the 200mw green laser situation.
Similar to the details of these optimization, is to solve the ordinary users of the use of laser TV pain points. The more brands concerned about this market, the product will be higher degree of improvement, it is no doubt. And this trend so that laser TV can gradually challenge the LCD TV.
タグ ：laser pointer
2017年03月25日
Ultrashort Laser Pulse
Antimony inter-band cascade lasers are new semiconductor lasers based on quantum effects and band engineering. They are combined with the radiation between electrons and holes through the transition between conduction band and valence band. Each active region is connected by a similar quantum cascade Series connection. It combines the advantages of traditional semiconductor interband transition lasers and quantum cascade 30mw green laser based on subband transitions, such as uniform carrier injection, high quantum efficiency, easy wavelength regulation, threshold current density and low power consumption. Therefore, the antimicrobial inter-band cascade lasers have important application prospects in environmental monitoring, medical diagnosis and information gathering in Internet of Things, but their structure is complex and the number of epitaxial layers is large, which makes the material grow very difficult.
By using the photon amplification technique, combined with the statistical properties of the laser and the spontaneous photon, it is possible to make the angular resolution of the telescope exceed the diffraction limit. In the traditional multi-photon microscopy, the ultrashort laser pulse gathers into a close spot on the sample, stimulating the fluorescence to produce an image. And multi-photon-space frequency modulation imaging microscope is to use multiple femtosecond laser pulse at the same time illuminate the larger light area to interfere, in order to build the image.
Technology for the first time to achieve a dual-view 10 watt laser pointer scanning based on real-time stereoscopic imaging and display system, the three-dimensional imaging speed than the traditional point-by-point scanning method to improve the order of one to two orders of magnitude. In other words, the imaging process from the previous few minutes to tens of minutes is completed in a few seconds, and the two-photon stereomicroscopic imaging system provides a new observing tool for 3D real-time imaging and display of living organisms. To observe the transmission of the fleeting neural signal in the neural network. The use of an elongated focused laser beam - Bessel beam to complete the scan, through the control of the beam, you can not do light slices, a one-time will be a thick three-dimensional sample clear imaging.
The development of industrial lasers, relative to scientific applications and medical applications, the requirements of industrial processing is the most advanced. First of all, its working environment is generally more stringent, followed by the laser for a long time reliability, stability, the most stringent requirements. It is mainly used in the cutting, micromachining and non-destructive microfabrication and fine marking of transparent brittle materials. High-power green 500mw laser pointer that can be used in the PCB field are highly representative. Because of its unique high power, in the solar cell dicing, ceramic cutting, including the touch screen manufacturing process can play a lot of role.
The more representative products in the research laser are miniaturized, compact lasers and large energy lasers, mainly used in laser shock enhancement, laser radar, mass spectrometry, including spectral detection. In addition to the industrial laser in addition to the high-power, low-power picosecond lasers, this year also developed a 30-watt green nanosecond, this new laser is the most important feature of the pulse width is relatively narrow, while power Relatively high. Medical line is displayed on the trump card products: medical beauty special picosecond laser. Used in mobile phones, hardware, medical device industry MOPA pulse width adjustable fiber kids laser pointer with high precision, high processing speed, anti-high anti-technical characteristics.
For a given laser power density and material, the cutting speed is in accordance with an empirical formula. As long as the threshold is above the threshold, the cutting speed of the material is proportional to the laser power density, that is, increasing the power density can increase the cutting speed. The power density referred to here is related not only to the laser output power but also to the beam quality mode. In addition, the characteristics of the beam focusing system, that is, after focusing the spot size also has a great impact on laser cutting.
Since the laser power density has a great influence on the cutting speed, the choice of lens focal length is an important problem. After focusing the high power laser pointer beam, the spot size is proportional to the focal length of the lens. After the beam is focused by the short focal length lens, the spot size is very small and the power density at the focal point is very high, which is advantageous for cutting the material; but its disadvantage is that the depth of focus is very short, Small, generally more suitable for high-speed cutting thin materials. As the telephoto lens has a wide focal depth, as long as there is sufficient power density, more suitable for cutting thick workpiece.
http://laserlife.over-blog.com/2017/03/semiconductor-laser-beam-technology.html
http://eyes123456.pixnet.net/blog/post/304478032
http://gameport.jp/user/12124/blog/11569/
By using the photon amplification technique, combined with the statistical properties of the laser and the spontaneous photon, it is possible to make the angular resolution of the telescope exceed the diffraction limit. In the traditional multi-photon microscopy, the ultrashort laser pulse gathers into a close spot on the sample, stimulating the fluorescence to produce an image. And multi-photon-space frequency modulation imaging microscope is to use multiple femtosecond laser pulse at the same time illuminate the larger light area to interfere, in order to build the image.
Technology for the first time to achieve a dual-view 10 watt laser pointer scanning based on real-time stereoscopic imaging and display system, the three-dimensional imaging speed than the traditional point-by-point scanning method to improve the order of one to two orders of magnitude. In other words, the imaging process from the previous few minutes to tens of minutes is completed in a few seconds, and the two-photon stereomicroscopic imaging system provides a new observing tool for 3D real-time imaging and display of living organisms. To observe the transmission of the fleeting neural signal in the neural network. The use of an elongated focused laser beam - Bessel beam to complete the scan, through the control of the beam, you can not do light slices, a one-time will be a thick three-dimensional sample clear imaging.
The development of industrial lasers, relative to scientific applications and medical applications, the requirements of industrial processing is the most advanced. First of all, its working environment is generally more stringent, followed by the laser for a long time reliability, stability, the most stringent requirements. It is mainly used in the cutting, micromachining and non-destructive microfabrication and fine marking of transparent brittle materials. High-power green 500mw laser pointer that can be used in the PCB field are highly representative. Because of its unique high power, in the solar cell dicing, ceramic cutting, including the touch screen manufacturing process can play a lot of role.
The more representative products in the research laser are miniaturized, compact lasers and large energy lasers, mainly used in laser shock enhancement, laser radar, mass spectrometry, including spectral detection. In addition to the industrial laser in addition to the high-power, low-power picosecond lasers, this year also developed a 30-watt green nanosecond, this new laser is the most important feature of the pulse width is relatively narrow, while power Relatively high. Medical line is displayed on the trump card products: medical beauty special picosecond laser. Used in mobile phones, hardware, medical device industry MOPA pulse width adjustable fiber kids laser pointer with high precision, high processing speed, anti-high anti-technical characteristics.
For a given laser power density and material, the cutting speed is in accordance with an empirical formula. As long as the threshold is above the threshold, the cutting speed of the material is proportional to the laser power density, that is, increasing the power density can increase the cutting speed. The power density referred to here is related not only to the laser output power but also to the beam quality mode. In addition, the characteristics of the beam focusing system, that is, after focusing the spot size also has a great impact on laser cutting.
Since the laser power density has a great influence on the cutting speed, the choice of lens focal length is an important problem. After focusing the high power laser pointer beam, the spot size is proportional to the focal length of the lens. After the beam is focused by the short focal length lens, the spot size is very small and the power density at the focal point is very high, which is advantageous for cutting the material; but its disadvantage is that the depth of focus is very short, Small, generally more suitable for high-speed cutting thin materials. As the telephoto lens has a wide focal depth, as long as there is sufficient power density, more suitable for cutting thick workpiece.
http://laserlife.over-blog.com/2017/03/semiconductor-laser-beam-technology.html
http://eyes123456.pixnet.net/blog/post/304478032
http://gameport.jp/user/12124/blog/11569/
タグ ：laser
2017年03月20日
Diamond Saw Blade Technology
For burning laser pointer welding of diamond saw blade, the need for appearance, microstructure and welding strength and other parameters of the test. The appearance of the main detection of the existence of welding macroscopical defects such as hole cracks, undercuts and not penetration, etc., usually need to be 100% of the detection, significant organizational detection of the main parts of the chemical parts of the inspection, significant changes in the structure and phase structure, The results show that the fine chemical composition of the molten zone has a gradient diffusion, and the transition layer hardness is lower than that of the matrix, which is higher than that of the tip. The welding strength test mainly tests the tensile strength, bending strength, impact toughness and residual stress of the weldment. It is usually necessary to carry out 100% welding strength test, and the residual stress and distribution after welding seriously affect the service life of the diamond saw blade.
At present, there are still some problems in laser welding of diamond saw blade technology, we need to carry out further research, to carry out special laser welding diamond saw carcass or transition layer material formula research, to carry out new ultra-fine or nano-alloy powder research, The research on the mechanism of 3000mw laser pointer welding of diamond saw blades, especially the research of temperature field, flow field, mass field and stress field of laser welding diamond saw blade and the on-line quality monitoring technology of laser welding diamond saw blade process are carried out. In fact, only a comprehensive understanding of the mechanism of laser welding diamond saw blade, it may be developed accordingly the new online quality monitoring technology; only master the theory of pre-alloy powder, it is possible to develop a new ultra-fine or nano-alloy powder and Better use of new ultra-fine or nano-pre-alloy powder to develop a dedicated diamond saw blade.
For large gantry laser cutting machine, to achieve high-speed, high-precision linear cutting, large arc cutting is a common technology, but to achieve a small round cut can only reduce the speed, laser cutting machine efficiency doubled. At the same time to achieve high-precision small round cutting, for large gantry cutting machine must improve the overall rigidity and dynamic performance of the machine. In order to meet the needs of special customers, a laser R & D and production of 2.5G super dynamic performance GHF-4020 high-speed high power laser pointer cutting machine. Up to 400 per minute cutting high-precision small round of the magic speed, compared to the traditional laser cutting machine can only cut 100 rounds per minute, the efficiency increased by 4 times. Its performance has been quite stable, cutting quality, cutting efficiency completely exceeded expectations.
Laser is the best way to optimize most of the existing processing technology at home and abroad. At home and abroad, after two well-known cutting and welding processes such as cutting, welding, surface treatment and cladding, The craft has done a breakdown. For example, for cutting, subdivided into melting-type cutting, vaporization-type cutting, and the melting of the cutting section of the roughness of the cutting, the vertical degree of more refined requirements, etc., which the laser and other ancillary manufacturers have put forward a new Of the high demand, so the industry is even with the integration of one of the key elements.
In the field of fiber laser, fiber lasers will further enhance the application coverage. There is also a saying that the structure of fiber lasers is to optimize the quality of direct semiconductor 1000mw green laser beam cost-effective program, so these two lasers do not conflict, but complement each other. The future In the field of metal processing, fiber laser vitality will be very strong, which may become a new trend. In terms of laser, different wavelengths, different power, different control methods of technology is the core, need a long time to layout. At this core, it is imperative to optimize the structure and technology of existing wavelengths of lasers to meet their potential needs in the current market. Such as higher average and peak power, shorter pulse width and so on.
Quasi-continuous single-mode / multi-mode laser products is characterized by single-mode or multi-mode output, respectively, adapted to cutting and welding, the main application areas are galvanometer spot welding, fine cutting. The direct semiconductor multi-mode continuous 5000mw green laser products are based on the company's more mature pump source introduced, the core feature is a certain anti-high anti-ability, mainly used in soldering, brazing, cladding, sintering, surface treatment and other fields The The principle and structure of different lasers have their own advantages and limitations. Fiber laser has been highly recognized in the field of metal processing because of its high efficiency of electro-optical conversion, flexible transmission optical path, maintenance-free and low cost. On the hot spot.
http://www.tildee.com/9DsYqg
http://www.studyup.com/notes/view/22663
http://gofishtalk.com/profiles/blogs/wound-healing-mechanism-of-the-skin
At present, there are still some problems in laser welding of diamond saw blade technology, we need to carry out further research, to carry out special laser welding diamond saw carcass or transition layer material formula research, to carry out new ultra-fine or nano-alloy powder research, The research on the mechanism of 3000mw laser pointer welding of diamond saw blades, especially the research of temperature field, flow field, mass field and stress field of laser welding diamond saw blade and the on-line quality monitoring technology of laser welding diamond saw blade process are carried out. In fact, only a comprehensive understanding of the mechanism of laser welding diamond saw blade, it may be developed accordingly the new online quality monitoring technology; only master the theory of pre-alloy powder, it is possible to develop a new ultra-fine or nano-alloy powder and Better use of new ultra-fine or nano-pre-alloy powder to develop a dedicated diamond saw blade.
For large gantry laser cutting machine, to achieve high-speed, high-precision linear cutting, large arc cutting is a common technology, but to achieve a small round cut can only reduce the speed, laser cutting machine efficiency doubled. At the same time to achieve high-precision small round cutting, for large gantry cutting machine must improve the overall rigidity and dynamic performance of the machine. In order to meet the needs of special customers, a laser R & D and production of 2.5G super dynamic performance GHF-4020 high-speed high power laser pointer cutting machine. Up to 400 per minute cutting high-precision small round of the magic speed, compared to the traditional laser cutting machine can only cut 100 rounds per minute, the efficiency increased by 4 times. Its performance has been quite stable, cutting quality, cutting efficiency completely exceeded expectations.
Laser is the best way to optimize most of the existing processing technology at home and abroad. At home and abroad, after two well-known cutting and welding processes such as cutting, welding, surface treatment and cladding, The craft has done a breakdown. For example, for cutting, subdivided into melting-type cutting, vaporization-type cutting, and the melting of the cutting section of the roughness of the cutting, the vertical degree of more refined requirements, etc., which the laser and other ancillary manufacturers have put forward a new Of the high demand, so the industry is even with the integration of one of the key elements.
In the field of fiber laser, fiber lasers will further enhance the application coverage. There is also a saying that the structure of fiber lasers is to optimize the quality of direct semiconductor 1000mw green laser beam cost-effective program, so these two lasers do not conflict, but complement each other. The future In the field of metal processing, fiber laser vitality will be very strong, which may become a new trend. In terms of laser, different wavelengths, different power, different control methods of technology is the core, need a long time to layout. At this core, it is imperative to optimize the structure and technology of existing wavelengths of lasers to meet their potential needs in the current market. Such as higher average and peak power, shorter pulse width and so on.
Quasi-continuous single-mode / multi-mode laser products is characterized by single-mode or multi-mode output, respectively, adapted to cutting and welding, the main application areas are galvanometer spot welding, fine cutting. The direct semiconductor multi-mode continuous 5000mw green laser products are based on the company's more mature pump source introduced, the core feature is a certain anti-high anti-ability, mainly used in soldering, brazing, cladding, sintering, surface treatment and other fields The The principle and structure of different lasers have their own advantages and limitations. Fiber laser has been highly recognized in the field of metal processing because of its high efficiency of electro-optical conversion, flexible transmission optical path, maintenance-free and low cost. On the hot spot.
http://www.tildee.com/9DsYqg
http://www.studyup.com/notes/view/22663
http://gofishtalk.com/profiles/blogs/wound-healing-mechanism-of-the-skin
タグ ：laser pointer
2017年02月21日
Picosecond Laser Marking Machine
At present, laser processing has been widely used in laser marking, laser drilling, burning laser pointer cutting and welding, surface modification of materials, laser rapid prototyping, laser composite processing and so on. In the manufacture of smart phone components, laser processing technology can be seen everywhere, such as mobile phone shell cutting, marking, welding, motherboard manufacturing, keyboard chip markers and earphones, headphones, accessories carving and drilling and so on. In the process of marking, the general use of fiber laser marking machine for information related to the mark. Although in today's many micro-processing applications, we can use nanosecond laser marking machine to achieve, but in the degree of refinement above there are still some deficiencies. The main reason is the use of this laser equipment for mobile phone micro-processing mark, it is easy to give mobile phone-related fine products to give more heat, resulting in melting, cracking, surface composition changes and other harmful side effects. However, with the current picosecond laser marking machine, you can in the mobile phone fine mark to achieve the real heat-free processing. In the actual marking process, the use of picosecond laser equipment in the mobile phone-related products above the realization of high-speed, high-quality fine markings, and nanosecond green astronomy laser equipment is often difficult to achieve the same quality, and easy to produce various defects. A series of related problems, including edge bumps, melting, debris, substrate cracking or damage, are caused by the heating of the surface of the mark due to the long nanosecond pulse.
In addition to avoiding thermal defects, the use of today's picosecond laser devices can also improve the processing efficiency. Fine machining of mobile phone related parts using other marking equipment, interaction for a long time, which lead to more waste of energy, so the heat to melt, also can spread rapidly in the processing of modified area. On the other hand, picosecond laser equipment has a very short interaction times, almost all energy related products directly through the mobile phone parts strongest laser pointer pulse acts perpendicular to the mark, to achieve instant laser ablation, and the processing efficiency is very high.
http://www.tildee.com/t1Lhj
https://www.freitag.de/autoren/laserman123/laser-interferometer-gravitational-wave/view
In addition to avoiding thermal defects, the use of today's picosecond laser devices can also improve the processing efficiency. Fine machining of mobile phone related parts using other marking equipment, interaction for a long time, which lead to more waste of energy, so the heat to melt, also can spread rapidly in the processing of modified area. On the other hand, picosecond laser equipment has a very short interaction times, almost all energy related products directly through the mobile phone parts strongest laser pointer pulse acts perpendicular to the mark, to achieve instant laser ablation, and the processing efficiency is very high.
http://www.tildee.com/t1Lhj
https://www.freitag.de/autoren/laserman123/laser-interferometer-gravitational-wave/view
タグ ：laser pointer