Filtered Diffraction Gratings

Filtered Diffraction Gratings

Filtered Diffraction Gratings

Optometrics’ patented filtered diffraction gratings are a custom solution for OEM applications requiring isolation of the desired spectral band prior to diffraction, and are design limited in doing so prior to the diffraction grating component. Filtering the undesired spectral band prior to diffraction minimizes second order and ray scattering effects, maximizing spectral dynamic range.


  • Block undesired spectra before dispersion
  • Reduce number of optical components
  • Reduce system size
  • Designs for reflection and transmission diffraction gratings


Optometrics designs, develops and patents a hybrid diffraction grating and optical filter for holographic weapons sight.

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