Draft Document - Safety of laser products - Part 12: Safety of free space optical communication systems used for transmission of information (IEC 76/655/CD:2020); Text in German and English
文件草案——激光产品的安全——第12部分:用于信息传输的自由空间光通信系统的安全(IEC 76/655/CD:2020);德语和英语文本