Midwest Optical BN940-25.5

BN940-25.5
$154.00Out Of Stock

Near-IR Bandpass Filter

  • Useful Range: 928 to 955 nm
  • FWHM: 55 nm
  • Tolerance: +/- 7 nm
  • Minimum Peak Transmission: >90%
  • Surface Quality: 40/20
  • Compatible LED: 940 nm

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Accessory Products

Description

BN940 Narrow Near-IR Bandpass filters feature a narrow band design with improved blocking of unwanted light and greater insensitivity to short shifting, making them particularly essential when 940 nm lighting is used together with a short focal length camera lens.

940 nm LEDs are commonly used in remote control devices and in security/surveillance lighting. 940 nm illumination is often considered “covert”, as little if any faint red glow is produced from these LEDs, even in complete darkness. Unfortunately CMOS and CCD cameras have greatly reduced sensitivity at these wavelengths, and strong ambient light can often make imaging in the range very difficult.

  • Useful Range: 928 to 955 nm
  • FWHM: 55 nm
  • Tolerance: +/- 7 nm
  • Minimum Peak Transmission: >90%
  • Surface Quality: 40/20
  • Compatible LED: 940 nm

Product Type:NIR
Filter Size:M25.5 x 0.5
Spectral Range:928 to 955 nm
FWHM:55 nm
Tolerance:=+/- 7 nm
Family:Bandpass
Min Peak Transmission:>90%
Surface Quality:40/20
Compatible LED:940 nm

Sample Images

  • BN940 example

    BN940 example