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紫外线led选型与分类
紫外线分类根据生物效应的不同,将紫外线按照波长划分为四个波段:UVA波长320~400nm,又称长波黑斑效应紫外线。它有很强的穿透力,可以穿透大...
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发光二极管和普通二极管的区别
一、特点不同:发光二极管相较于普通二极管具有体积小、色彩艳丽、耗电低、发光效率高、响应速度快、耐振动和使用寿命长等优点。二、用途不同:1、发光二...
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LED灯光谱中对健康的影响
1、紫外线 UV-A 含量极少,可以不考虑其影响;2、紫外线 UV-B 含量无;3、蓝光成分含量高,可能产生视网膜损伤,色温在 3500K 以下...
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LED灯珠的使用
1 、所有相关作业人员一定要做好防静电 如: 带静电环,穿静电衣, 静电鞋.2 、作业机台及作业桌面均需加装地线.3 、打开包装前, LEDs ...
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LED灯珠发光原理
PN结的某一电位构成了势垒。当施加正向偏置电压时,势垒减小,P区和N区的大多数载流子相互扩散。由于电子迁移率远大于空穴迁移率,大量电子将扩散到p...
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