1. Products
  2. Optics
  3. Optical Filters
  4. Color and Absorptive Optical Filters
  5. Colored Glass Blue Absorptive Bandpass Filters
  6. FSR-BG39

Bandpass Filter, Colored Glass, 25.4 mm, Blue Bandpass, BG39 Glass

  • Type
    Colored Glass Bandpass Filter
  • Material
    Schott BG39 or equivalent
  • Center Wavelength
    507 nm
  • FWHM
    210 nm
  • Angle of Incidence
    0°
  • Size
    Ø25.4 mm
  • Size Tolerance
    ±0.3 mm
  • Thickness
    2.0 to 3.0 mm, typical
  • Surface Quality
    60-40 scratch-dig
  • Damage Threshold
    30 W/cm2 CW, typical
  • Wedge
    ≤3 arc min
  • Clear Aperture
    central ≥ 80% of diameter
  • Chamfers
    Up to 1 mm face width
  • Chamfers Angle Tolerance
    45° ±15°
  • Cleaning
    See How to Clean Optics
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