Colored Glass Filter, Coated, Ø25.4 mm, UV Bandpass, U340
Colored Glass Filter, Coated, Ø25.4 mm, UV Bandpass, U340
Model: FSR-U340-C
In Stock
Product Series Overview
Coated Colored Glass Absorptive UV Bandpass FiltersThe FSR-U340-C Visible Absorbing Filter is a 25.4 mm diameter dark glass optical filter that passes UV and absorbs visible wavelengths made of Hoya U-340 filter glass. It is coated for better resistance to humid environments. These filters are precision polished for demanding research or OEM applications and are ideal for extraction of UV wavelengths.
Specifications
- TypeColored Glass Bandpass Filter
- MaterialHoya U340 or equivalent
- Center Wavelength340 nm
- Coating TypeSiO2
- Angle of Incidence0°
- SizeØ25.4 mm
- Size Tolerance±0.3 mm
- Thickness1.9 to 3.1 mm
- Thickness Tolerance±0.1 mm
- Surface Flatness≤1λ at 632.8 nm over the clear aperture
- Surface Quality60-40 scratch-dig
- Damage Threshold30 W/cm2 CW, Typical
- Wedge≤3 arc min
- Clear Aperturecentral ≥ 80% of diameter
- ChamfersUp to 1 mm face width
- Chamfers Angle Tolerance45° ±15°
- Cleaning
- Edge FinishCoated
Resources & Downloads
Other
FSR-U340-C_ROHS2-2021.pdf(280.6 kB, PDF)
2D Product Drawings
FSR-C Drawing(71.9 kB, PDF)
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