GOST R ISO/TR 11146-3-2008
激光和激光相关设备.激光波束宽度,扩张角,和传播比的测试方法.第3部分:固有和几何激光束分类,测试方法的宣传与细节
Lasers and laser-related equipment. Test methods for laser beam widths, divergence angles and beam propagation ratios. Part 3. Intrinsic and geometrical laser beam classification, propagation and details of test methods