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LECO for Empowering Results
Schott BG55 Bandpass Filter
Categories: Ceramic; Glass; Optical; Filter

Material Notes: Excellent optical properties include high transmission in addition to high blocking with a very narrow transition range. Furthermore, this glass is an ideal bandpass filter for visual areas when high absorption in the near infrared (NIR) wavelength range is required. The slope of the IR edge is exceptional, and guarantees a sharp distinction between visible light and NIR radiation.


  • Extraordinarily high transmittance in the visible range
  • High NIR absorption
  • Excellent inner quality, e. g. low striae
  • Allows true color imaging
  • Medical
  • Imaging
  • Surveillance
  • NVIS (night vision)
  • Industrial applications

Information provided by SCHOTT.

Available Properties
  • Density
  • Thickness
  • Acid Class, SR
  • Alkali Class, AR
  • Stain Resistance Class, FR
  • Hardness, Knoop, HK (0.1/20)
  • CTE, linear
  • CTE, linear
  • Transformation Temperature, Tg
  • Refractive Index
  • Refractive Index
  • Refractive Index
  • Refractive Index
  • Transmission, Visible
  • Transmission, Visible
  • Transmission, Visible
  • Transmission, Visible
  • IR Transmittance
  • IR Transmittance
  • IR Transmittance
  • IR Transmittance
  • IR Transmittance
  • UV Transmittance
  • UV Transmittance
Property Data

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Manufacturer Notes:
Schott Glas Mainz

Category Notes

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Elmet Technologies
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