Standard Infared Bandpass Filters

  • AI2O3 25mm Bandpass Filter CWL 2.7um/BW.12umFIL-910-2001
  • AI2O3 50mm Bandpass Filter CWL 3.0um/BW.12umFIL-910-2002
  • AI2O3 25mm Bandpass Filter CWL 3.5um/BW.14umFIL-910-2003
  • AI2O3 50mm Bandpass Filter CWL 3.6um/BW.14umFIL-910-2004
  • AI2O3 50mm Bandpass Filter CWL 4.3um/BW.12umFIL-910-2005
  • AI2O3 25mm Bandpass Filter CWL 4.7um/BW.15umFIL-910-2006
  • AI2O3 25mm Bandpass Filter CWL 5.3um/BW.42umFIL-910-2007
  • Ge 25mm Bandpass Filter CWL 10um/BW 4.0umFIL-940-2001
  • Ge 50mm Bandpass Filter CWL 10.6um/BW 1.5umFIL-940-2002
  • Si 25mm Bandpass Filter CWL 4.0um/BW 2.0umFIL-960-2001


Bandpass Filters are used to selectively transmit a portion of the spectrum while rejecting all other wavelengths. The Spectral Systems Standard Bandpass Filters are designed to provide highest transmission in your spectral region of interest and deep rejection of unwanted energy from adjoining wavelengths.
Our filters are fabricated from hard, durable first-surface dielectric coatings on optical-quality, IR transmitting substrates. These filters will withstand normal cleaning and handling associated typical of optical components.
Optical Bandpass Filters are useful for a variety of applications including fluorescence microscopy, spectroscopy, clinical chemistry and spectral imaging and are typically used in the life science, industrial, or R&D industries.

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