... 200nm to 2500nm. Optical glass has color optical glass and colorless optical glass. Color optical glass has phosphate glass and silicate glass. Apply Se and Cd ... glass, colourless optical glass, (ray) filter, (colour) filter, heat insulation glass, quartz glass, infra-red glass, near-infra-red glass, ultraviolet black glass, neutral gray glass, orange glass, green glass, yellow glass ...