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1996年,日本日亚化学公司研发出了商业化的InGaN/Y_3Al_5O_(12):Ce~(3+)(蓝光芯片+YAG:Ce黄荧光粉)白色发光二极管(LED),自此全球展开白光LED相关技术研发的竞逐。与传统照明光源相比,白光LED具有以下的优点:(1)发光效率高,发热量低,功耗低;(2)性能稳定可靠,使用寿命长,超过1000 h,为普通白炽灯寿命的10倍以上;(3)节能、环保、无
In 1996, Nichia developed a commercially available white light emitting diode (LED) of InGaN / Y_3Al_5O_ (12): Ce ~ (3 +) (blue chip + YAG: Ce yellow phosphor) LED related technology research and development competition. Compared with the traditional lighting, white LED has the following advantages: (1) high luminous efficiency, low heat, low power consumption; (2) stable and reliable performance, long life, more than 1000 h, for the incandescent lamp life 10 times more; (3) energy saving, environmental protection, no