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LED光参数——光通量(lm)

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LED光参数——光通量(lm)

 LED光参数——光通量(lm)  

   LED点光源或非点光源在单位时间内所发出的能量中可产生视觉者(人能感觉的辐射通量)即光通量,单位为lm(流明), lm定义为一国际标准烛光的光源在单位立体弧角内所通过的光通量。常见的LED灯具的光通量典型值为:18W1.2米led灯管的光通量1400-2500lm,led日光灯与同功率的LED灯管光通量相当,150Wled工矿灯的光通量可高达22500lm,led路灯LED工矿灯光通量相当。

   TONGYANG,ZHEIGELIANGDUIGUANGYUANERYANSHIMIAOSHUGUANGYUANFAGUANGZONGLIANGDEDAXIAODE,YUGUANGGONGLVDENGJIA。GUANGYUANDEGUANGTONGLIANGYUEDA,ZEFACHUDEGUANGXIANYUEDUO。

DUIYUGEXIANGTONGXINGGUANG,ZEF=4π,YEJIUSHISHUO,RUOGUANGYUANDEIWEIIcd,ZEGUANGTONGLIANGWEI4π=12.56lm。YULIXUEDANWEIBIJIAO,GUANGTONGLIANGXIANGDANGYUYALI,ERFAGUANGQIANGDUXIANGDANGYUYAQIANG。XIANGYAOBEIZHAOSHEDIANKANQILAIGENGLIANG,WOMENBUJINYAOTIGAOGUANGTONGLIANG,ERQIEHAIYAOZENGDAHUIJUDESHOUDUAN。SHIJISHANGJIUSHIJIANSHAOMIANJI,ZHEIYANGCAINENGDEDAOGENGDADEQIANGDU。

   YAOZHIDAOGUANGTONGLIANGYESHIRENWEILIANG,DUIYUQITADONGWUKENENGBUYIYANG。GENGBUSHIWANQUANZIRANDEDONGXI,YINWEIZHEIZHONGDINGYIWANQUANSHIGENJURENYANDUIGUANGDEXIANGYINGERLAIDE。

  RENYANDUIBUTONGYANSEDEGUANGDEGANJUEBUTONG,CIGANJUEJUEDINGLEGUANGTONGLIANGYUGUANGGONGLVDEHUANSUANGUANXI。DUIYURENYANXUANMINGANDE555nmDEHUANGLVGUANG,1W=683lm。YEJIUSHISHUO,1WDEGONGLVQUANBUZHUANHUANCHENGBOZHANGWEI555nmDEHUANGLVGUANG,WEI683lm。ZHEISHIBIJIAODADEGUANGZHUANHUANXIAOLV,YESHIDINGBIAOZHI,YINWEIRENYANDUI555nmDEGUANGMINGAN。DUIYUQITAYANSEDEGUANG,RU650nmDEHONGSE,1WXIANGDANGYU73lm,ZHEISHIYINWEIRENYANDUIHONGGUANGBUMINGANDEYUANYIN。DUIYUBAIGUANG,YAOKANQINGKUANG,YINWEIHENDUOBUTONGGUANGPUJIEGOUDEGUANGDOUSHIBAISEDE。


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