The emergence of blue LED Torch so that people can use down the line converted the phosphorescent material will be in part the higher energy blue light into other colors. LED Torch sources are only able to completely cover the CIE chromaticity curve all the saturated colors and a variety of colors and phosphorus of the [...]
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The competitive incentive LED manufacturers to further expand their product type, and is actively seeking a significant competitive advantage LED applications. After LED Torch dot matrix display text began to be used, the background grid pattern with the lights and bar graph arrays. Digital display of the size and complexity continues to increase, from 2 digits [...] In 1968, LED’s have made breakthroughs in research and development, the use of nitrogen-doped GaAsP technology to achieve the efficiency of the device 1 lm / W, and the ability to glow red, orange light and yellow light. By 1971, the industry has introduced with the same efficiency GaP green die LED. 1972, a small [...] There are many atomic electron energy levels, when electrons from high energy to low energy level transition, the electron energy is reduced by a reduction of energy is converted into photon emission out. Large number of these photons is a laser. LED similar to the principle. The difference is, however, LED is not [...] |
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