Bandpass Filters

Bandpass Filters

Bandpass filters transmit a narrow band around a centre wavelength and block light on both sides. They isolate a laser line, clean up an LED or lamp, or select a fluorescence emission band.

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Key specifications

  • Centre wavelengths from 250 nm to 1550 nm
  • Bandwidth 10 nm FWHM
  • Blocking OD > 4 from 200 to 1200 nm outside the passband
  • Ø12.5, 25 and 50 mm, mounted

How to choose

Choose the centre wavelength of your source or emission line. For laser lines, a 10 nm filter leaves room for small wavelength tolerances; for imaging, check that the filter diameter matches your optical path.

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All Bandpass Filters products (183)