DS/EN ISO 11146-1:2021 Lasers and laser-related equipment – Test methods for laser beam widths, divergence angles and beam propagation ratios – Part 1: Stigmatic and simple astigmatic beams (ISO 11146-1:2021)
2021DS/EN ISO 11146-1:2021 Lasers and laser-related equipment – Test methods for laser beam widths, divergence angles and beam propagation ratios – Part 1: Stigmatic and simple astigmatic beams (ISO 11146-1:2021)
2005DS/EN ISO 11146-1:2005 Lasers and laser-related equipment - Test methods for laser beam widths, divergence angles and beam propagation ratios - Part 1: Stigmatic and simple astigmatic beams (ISO 11146-1:2005)