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MidOpt BN Series Filter BN450

Uniforce Product

Salient Features

BN450 Narrow Indigo Bandpass Filter

BN450 is commonly used in fluorescence applications with an emission ranging from (430-460nm), it is suitable for use in LED or laser diode applications with higher than normal ambient lighting conditions and is less sensitive to angle of incidence variations than traditional interference filters. The BN450 is an ideal filter for applications utilizing 450nm blue laser triangulation sensors.


MidOpt StablEDGE® optical filters are specifically designed to be less susceptible to effects from angular shifting seen when optical filters are placed in front of short focal length (<12mm) camera lenses.

Using a traditional coated interference filter in these more compressed configurations results in contrast loss toward the edges of the image. Because of the angle imposed by the field of view (FOV) of the lens, the passband shifts and allows short wavelength ambient light to overwhelm the subject. Light from LED or laser diode lighting is also cut off. In contrast, peak transmission of MidOpt StablEDGE® filters is not significantly altered, and effects due to short shifting are minimized.



  • Useful Range : 435-465nm
  • FWHM : 45nm
  • Tolerance : +/- 7nm
  • Peak Transmission : ≥90%
  • Surface Quality : 40/20
  • Compatible LED : 450nm

Learn More About

›  Color Separation for Monochrome Imaging

›  Blocking Unwanted Light in Monochrome Imaging

›  How Bandpass Filters Increase Resolution in Monochrome Imaging

›  Near-IR Imaging in Monochrome Applications

›  Fluorescense Imaging in Monochrome Applications

> Learn More About How to Minimize the Effects of Short Shifting


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