NF S10-120-2:2005 Lasers and laser-related equipment - Test methods for laser beam widths, divergence angle and beam propagation ratios - Part 2 : general astigmatic beams.
2005NF S10-120-2:2005 Lasers and laser-related equipment - Test methods for laser beam widths, divergence angle and beam propagation ratios - Part 2 : general astigmatic beams.