An Interference Filter reflects one or more spectral bands or lines and transmits others, while maintaining a nearly zero coefficient of absorption for all wavelengths of interest. It consists of multiple thin layers of dielectric material having different refractive indices. There also may be metallic layers.
|Diameter Tolerance||+0.0,-0.2 mm|
|Ring Diameter (φ)||25.4±0.2 mm|
|Ring Thickness (T)||6 mm|
|Surface Quality||60-40 scratch and dig|
|Clear Aperture||>φ20 mm|
|Mounting Material||Black anodized aluminum|
Note: Central wavelength from 200 nm to 1000 nm are available upon your request. FWHM 15nm, 20nm and 30nm are also available upon your request.