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Colored Glass Visible Absorbing UV Bandpass Filters

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visible absorbing bandpass filter model fsr-u340

Overview

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

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Products

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Compare	Model		Size	Center Wavelength	Availability	Price	Brand
FSQ-U330 Optical Filter, Visible Absorbing, 50.8 x 50.8 mm, Hoya U-330 Glass $192 Show	FSQ-U330 Optical Filter, Visible Absorbing, 50.8 x 50.8 mm, Hoya U-330 Glass	0.0	50.8 x 50.8 mm	330 nm	Show	$192	Newport
FSQ-U340 Optical Filter, Visible Absorbing, 50.8 x 50.8 mm, Hoya U-340 Glass $152 Show	FSQ-U340 Optical Filter, Visible Absorbing, 50.8 x 50.8 mm, Hoya U-340 Glass	0.0	50.8 x 50.8 mm	340 nm	Show	$152	Newport
FSR-U330 Optical Filter, Visible Absorbing, 25.4 mm Diameter, Hoya U-330 Glass $88 Show	FSR-U330 Optical Filter, Visible Absorbing, 25.4 mm Diameter, Hoya U-330 Glass	0.0	Ø25.4 mm	330 nm	Show	$88	Newport
FSR-U340 Optical Filter, Visible Absorbing, 25.4 mm Diameter, Hoya U-340 Glass $80 Show	FSR-U340 Optical Filter, Visible Absorbing, 25.4 mm Diameter, Hoya U-340 Glass	0.0	Ø25.4 mm	340 nm	Show	$80	Newport
FR-UG11 Bandpass Filter, Colored Glass, 12.7 mm, UV Bandpass, UG11 Glass $59 Show	FR-UG11 Bandpass Filter, Colored Glass, 12.7 mm, UV Bandpass, UG11 Glass	1.0	Ø12.7 mm	325 nm	Show	$59	Newport
FSR-UG5 Bandpass Filter, Colored Glass, 25.4 mm, UV Bandpass, UG5 Glass $80 Show	FSR-UG5 Bandpass Filter, Colored Glass, 25.4 mm, UV Bandpass, UG5 Glass	3.0	Ø25.4 mm	318 nm	Show	$80	Newport
FSR-UG11 Bandpass Filter, Colored Glass, 25.4 mm, UV Bandpass, UG11 Glass $88 Show	FSR-UG11 Bandpass Filter, Colored Glass, 25.4 mm, UV Bandpass, UG11 Glass	4.0	Ø25.4 mm	325 nm	Show	$88	Newport
FSR-UG1 Bandpass Filter, Colored Glass, 25.4 mm, UV Bandpass, UG1 Glass $80 Show	FSR-UG1 Bandpass Filter, Colored Glass, 25.4 mm, UV Bandpass, UG1 Glass	5.0	Ø25.4 mm	355 nm	Show	$80	Newport
FSQ-UG5 Bandpass Filter, Colored Glass, 50.8 x 50.8 mm, UV Bandpass, UG5 Glass $109 Show	FSQ-UG5 Bandpass Filter, Colored Glass, 50.8 x 50.8 mm, UV Bandpass, UG5 Glass	11.0	50.8 x 50.8 mm	318 nm	Show	$109	Newport
FSQ-UG1 Bandpass Filter, Colored Glass, 50.8 x 50.8 mm, UV Bandpass, UG1 Glass $82 Show	FSQ-UG1 Bandpass Filter, Colored Glass, 50.8 x 50.8 mm, UV Bandpass, UG1 Glass	13.0	50.8 x 50.8 mm	355 nm	Show	$82	Newport

Showing 1 to 010 of 10 entries

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Specifications

Type

Visible Absorbing Filter
Angle of Incidence

0°
Size Tolerance

±0.3 mm
Thickness

2.0 to 3.0 mm, typical
Surface Quality

60-40 scratch-dig
Damage Threshold

30 W/cm CW², Typical

Wedge

≤3 arc min
Clear Aperture

central ≥ 80% of area
Chamfers

Up to 1 mm face width
Chamfers Angle Tolerance

45° ±15°
Cleaning

See How to Clean Optics

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.