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MidOpt Bi Series Filter Bi750

Uniforce Product

Salient Features

Bi Series Narrow Interference Bandwidth

    • 20-35nm FWHM; Narrow bandwidth
    • High transmission ≥85%
    • Designed for use with laser diodes
    • Ideal wavelength separation when multiple light sources of similar wavelengths are present
    • Reflective, mirror-type surface that helps minimize thermal effects
    • Available in sizes up to 79.5mm sq.


APPLICATIONS: Bi Series are popular for life science and laser analysis applications where only discrete wavelengths need to be passed to maximize system performance.

The Bi750 Near IR interference Bandpass filter; 750 nm IR illumination can be used to highlight dyes used in labeling, packaging and manufacturing. These markings often do not stand out when viewed under visible, white or colored light. Use of a Bi750 placed filter over the camera sensor or camera’s objective lens can eliminate interfering visible and longer wave near-IR light in order to greatly improve contrast/detection.


  • Useful Range : 740-765nm
  • FWHM : 30nm
  • Tolerance : +/- 5nm
  • Peak Transmission : >90%
  • Surface Quality : 40/20
  • Compatible LED : 750nm
  • Thickness : 0.7mm | 1mm


midopt_stabledge-filter-exMidOpt 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 (<12 mm) camera lenses.
StablEDGE™ filters take advantage of absorptive filter glass to form the leading
edge of the filter passband.This assures no shifting in this region, even when the
lens FOV exceeds 100°.StablEDGE™ designs are  less angle-of-incidence sensitive, inherently more rugged, and are environmentally stable.

Bi750 Trans Graph


Bi750 Transmission Chart


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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