Researchers at the Tomsk Polytechnic University in Russia and the Institute of Atmospheric Optics of the Siberian Branch of the Russian Academy of Sciences have developed a new type of laser monitor that can observe rapid process processes that are invisible to the human eye, such as welding. Previously, the R&D team developed a prototype monitor based on a single beam laser pointer. This new type of laser monitor can obtain clearer images and even observe the X-ray radiation accompanying the process.
The new monitor uses two active components and dual lasers, one to supplement the illumination to study the object or process, and the other to filter the exposure and enhance the effect of obtaining the image. The maximum distance of the single laser monitor to observe the process is 3 meters. Some processes not only carry a background reflection signal, but are also accompanied by X-ray radiation that may cause malfunction of electronic products. The observation distance of the dual laser transceiver monitor can reach 10 meters, and can reproduce the complex process. In addition, the new laser monitor can obtain object images with higher contrast and expand the visible area of the system.
The project was supported by the Russian Science and Technology Small Business Development Promotion Foundation. The new laser monitor will be the first to be used in welding and casting. Future lighting technology: laser will end LED? The laser headlights have 170 lumens per watt, and the road illumination distance reaches 600 meters. They have most of the advantages of LED headlights… There is no doubt that laser lighting technology is a world-class and subversive new generation of lighting technology. The industry driven is expected to reach a trillion-scale scale. It sounds like a brand new field with cutting-edge technology and “Qian Jing”.
What is laser lighting? Laser lighting is divided into visible laser lighting and infrared laser lighting. Visible laser lighting is divided into the following two types according to the principle: blue light excited phosphors to achieve white light lighting (such as the laser headlights launched by a BMW model in 2014); red, green, and blue laser synthetic white laser or true color light lighting. Infrared laser lighting is mostly used for night vision and night camera surveillance lighting.
The laser light source is based on a semi-polar GaN laser diode, combined with advanced phosphor technology. Because the laser is focused on a tiny point on the phosphor to emit light and convert it into white light, the light source can output safe and highly collimated white light. Coupled with the use of tiny optical lenses and reflectors, the light can be controlled excellently Good lighting effect. Compared with blue LEDs, green laser pointer does not have the problem of reduced light efficiency. In terms of lighting, laser lighting can achieve very high efficiency.
In fact, there is not much difference between the LD laser and the LED light from the excitation source. The YAG laser has one more laser radiation. The LED adds a fluorescence conversion after the semiconductor excitation light. The main visual difference is the laser. The monochromaticity is very good, the spectrum of LED is wider, suitable for display screen, lighting and so on.