Colored glass filters
- Spectral characteristics depend on certain glass effective thickness and does not depend on angle of incidence.
- Cost-effective filters for low-power applications
- Enhancement of signal-to-noise ratio of illumination systems
- Environmental protection
- Safety glasses
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|
|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|