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wanggang10:1.用1W LED (90lm)做一個手電,在2M處中心照度要達(dá)到4000lux `N;O6 wZ 2.光斑大小要10cm PwC^ ]e 3反光杯深度<60mm ,口徑<50mm Y/]J0D 我不知能否實(shí)現(xiàn),請各位高手幫忙指點(diǎn),最好能提供您的計算方法,非常感謝!(2009-04-22 15:08)嬀/color] 3(3-#MD0
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