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度，cd；a——面积，m2；θ——表面法线与给定方向之问的夹角，对于均匀漫反射表面，其表面亮度l与表面照度E有以下关系:l＝σE/π(1-6)对于均匀漫透射表面，其表面亮度l与表面照
http://blog.alighting.cn/1327/archive/2011/5/5/174235.html2011/5/5 11:46:00
璃 灯座规格E27产品重量148g 产品外径70mm产品长度120mm 产品颜色银色可根据要求制做各种不同颜色 性能参数 lEd功率5w 灯珠规格5*1w 光通量54
http://blog.alighting.cn/176222/archive/2013/5/13/317086.html2013/5/13 14:29:05
