如上图,激光类产品上主要分为四类 (CLASS 1至CLASS 4),类别越高,风险性越大
二、等级的定义:国际电工委员会IEC(International Electrical Commission)制定了欧盟关于激光等级的测试标准IEC 60825-1,标准中的定义如下:
三、激光对人体的危害:强烈的激光辐射会干扰人体的生物钟,产生头痛、乏力、记忆力衰退、心率失常、血压失常等症状。直接激光辐射会对视力造成永久性伤害甚至失明,其中的紫外到蓝光波段会导致皮肤灼伤。因此,激光产品的警告标识,也根据产品类型的不同有所区分(如下图):
四、激光产品IEC60825-1常规的测试内容简单介绍:
激光波长分类测试CLASSIFICATION PRINCIPLES
(1)单波长辐射:Radiation of a single wavelength,波长要求Wavelength : λ: 532nm。
(2)多波长辐射Radiation of multiple wavelengths
激光产品以两个或更多波长发射Laser product emits at two or more wavelengths
(3)来自扩展源的辐射测试Radiation from extended sources
(4)非均匀、非圆形或多个视在源测试Non-uniform, non-circular or multiple apparent source
(5)激光产品的作用为传统灯具功能测试Laser products designed to function as conventional lamps.
(6)正常条件下532nm视网膜热危害Normal condition at 532nm for retinal thermal hazard
(7)激光等级分类测试Determination of the class of the laser product
(8)激光接收角测试Angle of acceptance (for each condition)
(9)激光孔径测试Aperture diameters (for each condition