What is the white LED
Date:2010-11-24 16:14
For general lighting, the people need is mainly white light. 1998 glowing LED developed. This is the GaN LED chip and yttrium aluminum garnet (YAG) packaged together to make. GaN blue chip fat (p = 465nm, Wd = 30nm), made of high-temperature sintering of YAG phosphors with Ce3 + excited by this blue light yellow light, peak 550nm. Blue LED substrate cavity installed in the reflective bowl, cover with thin layer of resin mixed with YAG, about 200-500nm. LED substrate phosphor emitted blue light i
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