Colored Glass Visible Absorbing UV Bandpass Filters
Colored Glass Visible Absorbing UV Bandpass Filters
These dark glass filters absorb in the visible wavelength region and transmit in the ultraviolet (UV) wavelength region. They are made with high quality Hoya U-330 / U-340 or Schott UG visible absorbing coloered glass. They are designded for extracting UV wavelengths.
- UV transmitting / visible absorbing colored glass filters
- Hoya U-330 or U-340 dark glass
- Schott UG series blue glass
- 25.4 mm diameter or 50.8 x 50.8 mm See All Features
Specifications
- TypeVisible Absorbing Filter
- Angle of Incidence0°
- Size Tolerance±0.3 mm
- Thickness2.0 to 3.0 mm, typical
- Surface Quality60-40 scratch-dig
- Damage Threshold30 W/cm CW2, Typical
- Wedge≤3 arc min
- Clear Aperturecentral ≥ 80% of area
- ChamfersUp to 1 mm face width
- Chamfers Angle Tolerance45° ±15°
- Cleaning
Features
Hoya U-330 or U-340 Glass
Hoya ultraviolet transmitting / visible absorbing filter glass is used to pass UV wavelengths while blocking the visible spectrum. Please see the transmittance curve for more information.
Schott UG Series Colored Glass
UG series features black and blue colored glasses that transmit UV.
