Colored glass filters
Main features
- Spectral characteristics depend on certain glass effective thickness and does not depend on angle of incidence.
- Cost-effective filters for low-power applications
Application examples
- Enhancement of signal-to-noise ratio of illumination systems
- Environmental protection
- Safety glasses
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- Description
- Specifications
Colored glass filters attenuation properties are based on wavelength-dependent absorption. Therefore these filters are also known as absorption glasses. The in-band transmission and blocking level depends on effective thickness of the filter and does not depend on the angle of incidence. Colored glass filters are an attractive and cost-effective choice for for low-power applications.
| Colored glass filters | |
|---|---|
| Clear aperture | >90% |
| Face dimensions tolerance | +0/-0,2 mm |
| Thickness tolerance | ±0,2 mm |
| Parallelism error | <3 arcmin |
| Protective chamfers | <0,35 mm at 45° |
| Surface quality | 60-40 S-D |
| Surface flatness | <1λ@632,8 nm, λ/4@632,8 nm available |
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