ISO 13696:2022 PDF Download

ISO 13696:2022 is a standard that provides test methods for determining the total scattering by optical components. The standard includes procedures for measuring the contributions of forward scattering and backward scattering to the overall scattering of an optical surface. It applies to both coated and uncoated optical components with surfaces that have a radius of curvature greater than 10 m.

The standard covers a wide range of measurement wavelengths, from the ultraviolet (above 250 nm) to the infrared (below 15 µm) spectral regions. However, for measurements in the deep ultraviolet range of 190 nm to 250 nm, specific methods are considered and described separately. It is generally assumed that optical scattering is negligible for wavelengths above 15 µm.