Optical Filter by Knight Optical (UK) Ltd

Note: Your Quotation Request will be directed to Knight Optical (UK) Ltd.

The 220FIB12 from Knight Optical is a UV Interference Band-Pass Optical Filter that has a central wavelength of 220 nm. It has an average wavelength blocking range of 200 to 1150 nm with OD4 (0.01%) optical density tolerance. This optical filter has a peak transmission of 16% and FWHM of 14. It has an 8.5 mm aperture with a bandwidth of 14 nm. This optical filter is available in a hermetically sealed package mounted in a black anodized aluminum ring that measures Ø12.5 x 6.1 mm.

Product Specifications

Product Details

  • Part Number
  • Manufacturer
    Knight Optical (UK) Ltd
  • Description
    220 nm UV Interference Band-Pass Optical Filter

General Parameters

  • Filter Type
    UV Bandpass Filter, Bandpass Interference Filter
  • Glass Color
  • Wavelength Tolerance
  • Center Wavelength(CWL)
    220 nm
  • Bandwidth (FWHM)
    14 nm
  • Blocking Wavelength
    200 to 1150 nm
  • Clear Aperture
    8.5 mm
  • Transmission

Physical Properties

  • Filter Shape
  • Substrate/Material
  • Thickness
    6.1 mm
  • Filter Diameter
    12.5 mm
  • Surface Quality
    80-50 Scratch-Dig


  • Operating Temperature display
    -50 to 80 Degree C
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