Compared with incandescent, fluorescent, white LED light with small size, long life, fast response, low power consumption, environmental protection, high luminous efficiency advantages, more and more widely used in life. However, white LED lamp with a long time easily deteriorate, lamp aging, resulting in light color deviation, color deterioration, affecting lighting quality and Other issues, the general life expectancy of 2 to 3 years. In order to solve these problems, Professor Ou Gang of Wenzhou University School of Chemistry and Materials Engineering Xiangdong, invented new materials, LED lamps can extend the life of about 10 years and can be a long time exposure, so that LED lights more widely used in high-grade Cars, high-speed rail, aircraft, submarines and other lighting. Recently, the reporter went to Professor Wei Dong's laboratory to explore the magic of this new material in the end what. 2000 ℃ high temperature yellow crystal refinement Let white LED lamp life longer Introduced to Professor Wei Dong, white LED lights on the market now the main process is the use of the blue light emitting chips and issued a yellow phosphor, the two with the AB glue issued a white light. However, the main problem with this process is that the AB glue that binds the phosphor is prone to aging, especially when the high temperature produced by the lamp being on for a long time easily causes the AB glue-bound phosphor to lose its original effect, thereby affecting the light emission of the white LED lamp Effect, such as light is not bright, blue light and so on. To break this challenge, we must start from the yellow phosphor. In this regard, Professor Wei spent years devoted to studying the yellow single crystal material, the material is produced at 2000 ℃ high temperature environment prepared by as long as each LED blue chip put a matching (for example, 24 Watt a single light source available 5.5mm × 5.5mm single crystal match) yellow single crystal material, will be able to send a stable white light. Due to the crystal's high temperature resistance and good thermal conductivity, LED lamps can be made more durable and have a longer service life. In particular, they can not cause damage to the lamp due to the high temperature caused by prolonged exposure. Therefore, it is suitable for high-end car lamps , High-speed rail, aircraft or submarines and other lighting. A few days ago, the reporter saw the production of high-temperature furnaces and yellow crystal products of yellow crystal in Weidong's lab. The study has been successful for four or five years. At present, weidong is also negotiating and cooperating with relevant enterprises. He said that in the production of yellow crystal, you can control the crystal composition, concentration, thickness, etc., bring different intensity of light and color temperature, to meet the various needs, can also be made into various lengths and shapes of white LED lights. In addition, Weidong has also developed another alternative yellow powder yellow fluorescent glass, yellow crystal compared to yellow, although not so durable glass, but the cost is lower, the production cycle shorter, these two Alternative materials have reached the market technical indicators. Scientific research breakthroughs in traditional crafts LED lights make more convenient To Professor Wei Dong not only invented alternative materials to make white LED lights more durable, he also cooperated with the foreign school, you want to break through the traditional process, so that the manufacture of LED lights more simple and efficient. He said that the process of white LED lamps now need chips and yellow light or yellow crystal combination, so that the two need to be glued AB glue, the glue is not so durable. So how do not glue, so that the production process is more simple, he came up with new ways to "produce" the blue chip on the yellow crystal, is to make the two integrated into one, no longer need glue bonding. At present, the process is still under further research and development. In addition to trying to break the traditional process, in order to make the white LED shine more gentle, he also developed a red crystal red. He said that only the combination of yellow and blue light white, mostly glaring, if you add red, white light can make more gentle and comfortable. At present, he is developing how to make the yellow crystal and red crystal fusion, just one crystal can achieve the effect of two crystals, the process needs to be further improved. rilling Casing Float Collar,Cementing Float Shoe And Float Collar,Float Collar And Float Shoe Henan Dongfanglong Trade Co.,Ltd , https://www.tjdflpetro.com