Banpass Optical Filters

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Banpass Optical Filters
Posting date : May 14, 2009
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90-
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IR Narrow Banpass Optical Filters Application: CCTV,video doorbell,surveillance camera,digital telescope Substrate: D263T,B270 Dimension: Round Type:φ3.0mm~φ100mm Squarte Type:3.0mm~80mm Thickness:0.3mm~2.0mm Custom design dimension available Spectral Data: Tave>85% Tmin>80% at 830-870nm T=50% at 830±10nm, 890±10nm T<2% at 400-800 nm Tave<3% at 950-1000 nm T<5% at 1100 nm Other item:NBF-940,NBF-1064 Narrow bandpass filters are designed to isolate a narrow region of the infra-red spectrum. This is accomplished using a complex process of constructive and destructive interference.Narrow band pass filters have bandwidths (measured at half-peak transmittance levels) less than 6% of the center of wavelength value.

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