KS B ISO 11146-2-2020 Lasers and laser-related equipment — Test methods for laser beam widths, divergence angles and beam propagation ratios —Part 2: General astigmatic beams
2020KS B ISO 11146-2:2020 Lasers and laser-related equipment — Test methods for laser beam widths, divergence angles and beam propagation ratios —Part 2: General astigmatic beams
2015KS B ISO 11146-2:2015 Lasers and laser-related equipment-Test methods for laser beam widths, divergence angles and beam propagation ratios-Part 2:General astigmatic beams
2006KS B ISO 11146-2:2006 Lasers and laser-related equipment-Test methods for laser beam widths, divergence angles and beam propagation ratios-Part 2:General astigmatic beams