Interference Filter
Interference Filter
Infrared Filter
Optical Filter
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.
Specification:
|
Material |
Fused Silica |
|
Diameter Tolerance |
+0.0,-0.2mm |
|
Ring Diameter (φ) |
|
|
Ring Thickness (T) |
6mm |
|
Surface Quality |
60-40 scratch and dig |
|
FWHM |
10nm |
|
Clear Aperture |
>φ20mm |
|
Wavelength Tolerance |
±2nm |
|
Mounting Material |
Black anodized aluminum |
Note: Central wavelength from 200nm to 1000nm are available upon your request. FWHM 15nm, 20nm and 30nm are also available upon your request.
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