LED蓝光泄露安全性研究

Study on the Safety of Blue Light Leak of LED

研究了LED照明器件的蓝光特性。针对我国的LED照明现状,通过测试LED照明器件的光谱成分,根据现行国内外标准GB/T 20145—2006/CIE S009/E:2002和IEC62471:2006,以及CTL-0744_2009-laser决议,分析了LED光生物安全性,给LED照明灯具制造和相关安全性标准、法律制定提供参考。LED中蓝光的辐亮度值低于100W·m-2·Sr-1时对人眼属于无危害类型,正常使用情况下不会对人眼造成伤害,但是应该注意对特殊人群(小孩)的保护,避免长时间直视光源。灯具富蓝化也会影响人的作息规律,因此色温4 000K以下,显色指数80的LED灯具适合在室内使用,同时还要根据不同的使用距离选择不同的参数的灯具。

In this paper ,the blue light properties of LED illumination devices have been investigated .Against the status quo of China’s LED lighting ,we measured the spectrum component of LED lamps and analyzed the photobiological safety under the current domestic and international standards GB/T 20145-2006/CIE S009/E：2002 and IEC62471 ：2006 standards as well as CTL-0744_2009-laser resolution ,which provides the reference to the manufacture of LED lighting lamps as well as related safety standards and laws .If the radiance intensity of blue light in LED is lower than 100 W ＆#183; m -2 ＆#183; Sr-1 ,there is no harm to human eyes .LEDs will not cause harm to human eyes under normal use ,but we should pay attention to the protection of special popula-tions （children） ,and make sure that they avoid looking at a light source for a long time .The research has found that the blue-rich lamps can affect the human rule of work and rest ,and therefore ,the LED lamps with color temperature below 4 000 K and color rendering index of 80 are suitable for indoor use .At the same time ,the lamps with different parameters should be selected according to the different distances .