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BG18, BG38, BG40 BAND PASS FILTERS

Individual solutions for many filter problems. The SCHOTT band-pass filters BG18, BG38, BG40 have wide bandwidths combined with variable transmission and blocking properties.

 

Application areas:

  • As an IR cutoff filter in CCD and CMOS applications
  • As components of laser protection glasses / windows
  • To correct the spectral sensitivity of silicon receivers
  • As a substrate for thin-film coatings

SCHOTT guaranteed values for band pass filters

Type Reference thickness [mm] Ti (λ[nm]) Ti (λ[nm]) Ti (λ[nm]) Ti (λ[nm]) Ti (λ[nm]) Ti (λ[nm])
BG18 1 ≥0.30(350) ≥0.65(405) ≥0.88(514) ≤0.25(633) ≤0.03(694) ≤5x10⁻⁴(1060)
BG38 1 ≥0.80(350) ≥0.93(405) ≥0.95(514) ≤0.67(633) ≤0.32(694) ≤0.06(1060)
BG40 1 ≥0.80(350) ≥0.93(405) ≥0.97(514) ≤0.57(633) ≤0.16(694) ≤0.02(1060)

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For further information about the desired filters please take notice of the current SCHOTT data sheet / catalogue.