Dichroic Filter General Specifications

Far more durable than dyed plastic or gel-coated types, dichroic glass filters have a hard dielectric film created by thin layers of metallic oxides. These color separation filters are designed to isolate certain regions of the visible spectrum, reflecting rather than absorbing unwanted frequencies. As a result, they not only produce pure, intense color but also withstand the heat and UV energy from high-energy light sources. Commonly used as light balancing filters in color enlargers and photocopiers, dichroic filters are suitable for any application that requires separating the incident energy into two or more light beams. 

Thickness: 1.0mm ±0.25mm
Size Tolerance: +0.0mm/-0.25mm
Min. Clear Aperture: 95% of outside dimension
Substrate Material: Soda lime glass
Flatness: 3–5 waves per 25mm
Parallelism: 3 arc minutes or better
Surface Quality: 80/50 per MIL-C-48497A
Humidity and Abrasion: Per MIL-C-48497A
Max. Operating Temperature: +200°C