摘要
近年来,随着LED应用的日益广泛,人们对于其使用安全性的讨论也日趋激烈:LED是否存在蓝光危害呢?为了能够以科学的事实来解释这一问题,我们就一些光源的蓝光危害展开了测试与评估。本文介绍了一种利用成像亮度计来测试光源蓝光危害的方法,通过光源的光谱和最大亮度,分别计算光源的蓝光危害效率以及蓝光安全亮度和照度上限。实验结果表明:对于色温低于6500K的光源,只要其亮度不超过100kcdm–2,或照度不超过1000lx,就是蓝光安全的,可以放心使用。
In recent years,with the wide development of LED applications,the discussion of blue light safety becomes a hot topic. Are there blue light hazards in LED? In order to ease these concerns with scientific facts,we carry out a study on the blue light hazard( BLH) of light sources. We introduce a measurement method to evaluate the BLH. Through the spectral power distribution and maximum luminance of the light sources,the blue light hazard efficacy,the maximum blue light safe radiance and irradiance can be obtained. The results show that ‘absolute'blue light safe of various light sources could be obtained if the luminance is limited to 100 kcd m- 2or illuminance is limited to 1000 lx for color temperature lower than6500 K.
出处
《照明工程学报》
2013年第S1期45-50,共6页
China Illuminating Engineering Journal
关键词
光辐射安全
荧光灯
LED
亮度
蓝光危害效率
optical radiation safety
fluorescent lamps
LEDs
luminance
blue light hazard efficacy
