NF S10-120-1*NF 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
2021NF S10-120-1*NF 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