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d。 led的色彩与工艺:制造led的材料不同,可以产生具有不同能量的光子,借此可以控制led所发出光的波长,也就是光谱或颜色。历史上第一个led所使用的材料是砷(as)化镓(g
http://blog.alighting.cn/cookie/archive/2010/10/15/106910.html2010/10/15 15:04:00