GB/T 26599.1-2011
激光和激光相关设备.激光光束宽度、发散角和光束传输比的试验方法.第1部分:无像散和简单像散光束
Lasers and laser-related equipment.Test methods for laser beam widths, divergence angles and beam propagation ratios.Part 1: Stigmatic and simple astigmatic beam
GBT26599.1-2011, GB26599.1-2011