2017年03月03日
Artificial Electromagnetic Materials
Artificial electromagnetic materials are material materials that control light in an unusual way at nanoscale. They can be used to develop foreign equipment such as invisible cloaks to quantum computers. But the problem is that the metamaterials they use usually contain metals that absorb energy from light and convert it into heat. As a result, a portion of the optical signal is wasted, reducing the efficiency of the device. A photonics 500mw laser pointer research team led by Shaya Fainman, an electrical engineering professor at the University of California, San Diego, demonstrated the use of metallic materials that add excitation light to compensate for these optical losses, an optical semiconductor.
Laser cutting has the same advantages as conventional processing methods. In the thermal cutting method, oxygen-combustible (such as acetylene) cutting and plasma cutting can not concentrate as much energy as a laser beam in a very small area, resulting in large incision width, large heat affected area and more obvious deformation of the workpiece. Oxygen- combustible cutting equipment is small, less investment, can cut up to 1m thick steel plate, is a very flexible cutting tools, mainly used to cut low carbon steel. However, due to its large heat affected area, cutting speed is low, the incision appears serious jagged and corrugated. Therefore, it is rarely used to cut the thickness of 20mm or less and require accurate size of the material. Plasma cutting is similar to 400mw laser pointer cutting speed, significantly higher than acetylene flame cutting. But its cutting energy is low, trimming at the top of a round head, cut from the obvious waveform.
In operation, but also to prevent the arc generated by the UV radiation on the operator of the damage. Conventional fiber lasers use fiber-coupled technology to couple multiple laser outputs together, resulting in lower brightness of the output laser. The new generation of fiber lasers uses an innovative architecture that combines the pump diodes and drivers into separate pump modules. The gain fiber is mounted in a configurable gain module that can output more than 8kW of laser power. The gain module is based on the novel main oscillator / power amplifier (MOPA) design, enabling high-brightness 300mw laser pointer output. In addition, the Ennie laser also uses a reliable integrated backlash isolator to protect all modules from the impact of backlit light, can be high anti-material for full power, uninterrupted, stable processing. These two technological innovations play a vital role in RLS applications.
For iron and steel enterprises, the establishment of laser processing sheet metal distribution center, has a unique advantage. First, the production of sheet metal production and sales base, over the years to establish a wide range of sales channels, customer relations and sales network, the production and sales base of the plate, ; The small batch, multi -species needs of users, can directly provide the finished product after 10mw laser pointer precision processing to extend the service chain of the product, resulting in a secondary benefit; cutting waste can be quickly recycled; at the same time, reduce the intermediate transport links, Cost savings, to maximize the profits. And behind all this, laborers can provide long-term, strong technical support.
This is the first time with metal and semiconductor coexistence of a material. If light is one of the ways of polarization, the metamorphic light will be like metal, and when light is polarized in other ways, the metamaterial absorbs and emits light in different colors, like semiconductors, "says Smalley. The new metamaterials, first grown into a crystalline semiconductor material, are called indium gallium arsenide, are on the substrate. Then they use plasma blue laser pointer high-energy ion etching to narrow the grooves to achieve the semiconductors, create 40 nanometers wide and the line spacing of 40 nanometers.Finally, they use silver to create an alternate striped pattern and a silver nanocrystalline trench.
Laser cutting is a kind of high energy density controllable non-contact processing. It focuses the burning laser beam into a spot with a minimum diameter of less than 0.1mm, so that the power density at the focal point can exceed 107W to 108W / cm ~ 2. The irradiated material is quickly heated to the vaporization temperature and evaporated to form pores. As the beam moves relatively linearly with the material, the apertures are continuously formed with slits of about 0.1 mm in width. The cutting also adds auxiliary gas to the material to be cut to accelerate the melting of the material, blown away the slag or protecting the slits from being oxidized.
Laser cutting has the same advantages as conventional processing methods. In the thermal cutting method, oxygen-combustible (such as acetylene) cutting and plasma cutting can not concentrate as much energy as a laser beam in a very small area, resulting in large incision width, large heat affected area and more obvious deformation of the workpiece. Oxygen- combustible cutting equipment is small, less investment, can cut up to 1m thick steel plate, is a very flexible cutting tools, mainly used to cut low carbon steel. However, due to its large heat affected area, cutting speed is low, the incision appears serious jagged and corrugated. Therefore, it is rarely used to cut the thickness of 20mm or less and require accurate size of the material. Plasma cutting is similar to 400mw laser pointer cutting speed, significantly higher than acetylene flame cutting. But its cutting energy is low, trimming at the top of a round head, cut from the obvious waveform.
In operation, but also to prevent the arc generated by the UV radiation on the operator of the damage. Conventional fiber lasers use fiber-coupled technology to couple multiple laser outputs together, resulting in lower brightness of the output laser. The new generation of fiber lasers uses an innovative architecture that combines the pump diodes and drivers into separate pump modules. The gain fiber is mounted in a configurable gain module that can output more than 8kW of laser power. The gain module is based on the novel main oscillator / power amplifier (MOPA) design, enabling high-brightness 300mw laser pointer output. In addition, the Ennie laser also uses a reliable integrated backlash isolator to protect all modules from the impact of backlit light, can be high anti-material for full power, uninterrupted, stable processing. These two technological innovations play a vital role in RLS applications.
For iron and steel enterprises, the establishment of laser processing sheet metal distribution center, has a unique advantage. First, the production of sheet metal production and sales base, over the years to establish a wide range of sales channels, customer relations and sales network, the production and sales base of the plate, ; The small batch, multi -species needs of users, can directly provide the finished product after 10mw laser pointer precision processing to extend the service chain of the product, resulting in a secondary benefit; cutting waste can be quickly recycled; at the same time, reduce the intermediate transport links, Cost savings, to maximize the profits. And behind all this, laborers can provide long-term, strong technical support.
This is the first time with metal and semiconductor coexistence of a material. If light is one of the ways of polarization, the metamorphic light will be like metal, and when light is polarized in other ways, the metamaterial absorbs and emits light in different colors, like semiconductors, "says Smalley. The new metamaterials, first grown into a crystalline semiconductor material, are called indium gallium arsenide, are on the substrate. Then they use plasma blue laser pointer high-energy ion etching to narrow the grooves to achieve the semiconductors, create 40 nanometers wide and the line spacing of 40 nanometers.Finally, they use silver to create an alternate striped pattern and a silver nanocrystalline trench.
Laser cutting is a kind of high energy density controllable non-contact processing. It focuses the burning laser beam into a spot with a minimum diameter of less than 0.1mm, so that the power density at the focal point can exceed 107W to 108W / cm ~ 2. The irradiated material is quickly heated to the vaporization temperature and evaporated to form pores. As the beam moves relatively linearly with the material, the apertures are continuously formed with slits of about 0.1 mm in width. The cutting also adds auxiliary gas to the material to be cut to accelerate the melting of the material, blown away the slag or protecting the slits from being oxidized.
タグ ：laser pointer
2017年02月25日
Projection Market Analysis 2017
Over the past 2016, the television field said that the industry's display technology is no doubt "laser display technology." Since the laser display technology has been, the projector's combat effectiveness of the surge. In 2016 the burning laser pointer projection market, and gradually opened, and all the way soaring, according to statistics, 2016 laser projection product sales of 11 million units, compared to 2015 increased by 4 times, marking the laser projection has entered a comprehensive development Golden age.
From 2006, Mitsubishi introduced 40-inch laser TV prototype, the color TV market is still open the laser projector market model, in 2014, the international laser display technology to the early stage of industrialization, to now after years of development. 4K, laser, ultra-short focus to become the core development of the industry power. After years of development and accumulation of technological innovation in projection industry, the development of projection innovation technology has become the main core of projection market.
Laser TV works The core is the light source, the high power laser pointer emits wavelength and color of the light, through the laser in front of the special crystal or light guide to generate red, green and blue color, and then converted into the desired color. In the red, green and blue data through the internal modem, and finally converted into optical information. After a series of internal modulation, and finally projected onto the screen.
With the improvement of people's living standards, people's demand for material life is also increased year on year, from the early small-size TV to the later 55-inch TV, more and more consumers pay more attention to large-screen audio-visual enjoyment. In the past, the big screen dream of consumers in the theater, now, big screen dream is gradually into our lives our home. In Samsung, LG, Sharp and other manufacturers to increase the panel production line upgrade, Hisense is the opposite, made more than 80-inch TV "to screen" strategy, released Hisense 5mw green laser TV, which not only solved the large-screen panel supply The lack of problems, but also in the price also has a very big advantage, and this is also able to reflect the Hisense's extraordinary!
In addition to the screen size and performance advantages, the laser TV eye function is also one of the characteristics of LCD TV does not have, and eye function is also precisely to meet the needs of most consumers to buy. According to the World Health Organization's latest study shows that the current number of Chinese patients with myopia up to 600 million, almost half of the total population of China. Which the number of juvenile myopia has over seventy percent, in addition to learning pressure outside, the biggest reason from the electronic screen hazards, resulting in excessive use of eye myopia. And ordinary LCD TV imaging is completely different, 10mw laser pointer TV simulation of natural reflection imaging principle people see the screen reflects the light, real nature, no radiation, to avoid the traditional screen mirror glare and strobe and other issues.
Now there are three laser display technology, three-color laser, phosphor + blue, LED + laser, compared to the advantages of three-color laser is more obvious. Three-color laser is a high-end 1mw laser pointer projector label, the use of the technology projection equipment can easily reach more than 20,000 lumens brightness. The phosphor corresponds to the low-end projector, the highest brightness just broke 10000 lumens. Laser display technology as the industry's most development potential of the equipment, since the birth of the projector has been widely used in various industries. Because of its rich and saturated color, high brightness, long life, low cost and high environmental protection and other characteristics, as a projection and display the technological revolution of the fuse.
On the current situation, these three kinds of laser display technology may exist for some time, but the development trend seems. Three-color laser display screen is extremely delicate, than the ordinary screen projection effect is more clear. 2017 will be the laser burst years, in the laser display technology application level, China's violet laser pointer innovation technology has been in the forefront of the world. Laser display as the fourth generation of display technology, and gradually guide the development of global display technology, the future of laser display will be everywhere.
http://laserpointers.cocolog-nifty.com/blog/2017/02/remote-laser-pr.html
http://blog.roodo.com/laserman/archives/60728403.html
http://laserman123.blogdiario.com/1487941762/
From 2006, Mitsubishi introduced 40-inch laser TV prototype, the color TV market is still open the laser projector market model, in 2014, the international laser display technology to the early stage of industrialization, to now after years of development. 4K, laser, ultra-short focus to become the core development of the industry power. After years of development and accumulation of technological innovation in projection industry, the development of projection innovation technology has become the main core of projection market.
Laser TV works The core is the light source, the high power laser pointer emits wavelength and color of the light, through the laser in front of the special crystal or light guide to generate red, green and blue color, and then converted into the desired color. In the red, green and blue data through the internal modem, and finally converted into optical information. After a series of internal modulation, and finally projected onto the screen.
With the improvement of people's living standards, people's demand for material life is also increased year on year, from the early small-size TV to the later 55-inch TV, more and more consumers pay more attention to large-screen audio-visual enjoyment. In the past, the big screen dream of consumers in the theater, now, big screen dream is gradually into our lives our home. In Samsung, LG, Sharp and other manufacturers to increase the panel production line upgrade, Hisense is the opposite, made more than 80-inch TV "to screen" strategy, released Hisense 5mw green laser TV, which not only solved the large-screen panel supply The lack of problems, but also in the price also has a very big advantage, and this is also able to reflect the Hisense's extraordinary!
In addition to the screen size and performance advantages, the laser TV eye function is also one of the characteristics of LCD TV does not have, and eye function is also precisely to meet the needs of most consumers to buy. According to the World Health Organization's latest study shows that the current number of Chinese patients with myopia up to 600 million, almost half of the total population of China. Which the number of juvenile myopia has over seventy percent, in addition to learning pressure outside, the biggest reason from the electronic screen hazards, resulting in excessive use of eye myopia. And ordinary LCD TV imaging is completely different, 10mw laser pointer TV simulation of natural reflection imaging principle people see the screen reflects the light, real nature, no radiation, to avoid the traditional screen mirror glare and strobe and other issues.
Now there are three laser display technology, three-color laser, phosphor + blue, LED + laser, compared to the advantages of three-color laser is more obvious. Three-color laser is a high-end 1mw laser pointer projector label, the use of the technology projection equipment can easily reach more than 20,000 lumens brightness. The phosphor corresponds to the low-end projector, the highest brightness just broke 10000 lumens. Laser display technology as the industry's most development potential of the equipment, since the birth of the projector has been widely used in various industries. Because of its rich and saturated color, high brightness, long life, low cost and high environmental protection and other characteristics, as a projection and display the technological revolution of the fuse.
On the current situation, these three kinds of laser display technology may exist for some time, but the development trend seems. Three-color laser display screen is extremely delicate, than the ordinary screen projection effect is more clear. 2017 will be the laser burst years, in the laser display technology application level, China's violet laser pointer innovation technology has been in the forefront of the world. Laser display as the fourth generation of display technology, and gradually guide the development of global display technology, the future of laser display will be everywhere.
http://laserpointers.cocolog-nifty.com/blog/2017/02/remote-laser-pr.html
http://blog.roodo.com/laserman/archives/60728403.html
http://laserman123.blogdiario.com/1487941762/
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