Compare Model Drawings, CAD & Specs Size Center Wavelength Availability Price
Optical Filter, Visible Absorbing, 50.8 x 50.8 mm, Hoya U-330 Glass
$183
In Stock
50.8 x 50.8 mm 330 nm
In Stock
Optical Filter, Visible Absorbing, 50.8 x 50.8 mm, Hoya U-340 Glass
$145
In Stock
50.8 x 50.8 mm 340 nm
In Stock
Optical Filter, Visible Absorbing, 25.4 mm Diameter, Hoya U-330 Glass
$84
In Stock
Ø25.4 mm 330 nm
In Stock
visible absorbing bandpass filter model fsr-u340
Optical Filter, Visible Absorbing, 25.4 mm Diameter, Hoya U-340 Glass
$76
4 Weeks
Ø25.4 mm 340 nm
4 Weeks

Specifications

  • Type
    Visible Absorbing Filter
  • Surface Quality
    60-40 scratch-dig
  • Thickness
    2.0 to 3.0 mm, typical
  • Size Tolerance
    ±0.3 mm
  • Angle of Incidence
  • Damage Threshold
    30 W/cm CW2, Typical
  • Wedge
    ≤3 arc min
  • Chamfers
    Up to 1 mm face width
  • Chamfers Angle Tolerance
    45° ±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.