SBA-Registered Small Business • ISO 9001:2008 Certified • ITAR Registered • Made in the USA   |   1-866-488-1064   |   +1-802-251-7300

Photopic Filters

Precision photopic response filters simulate the spectral sensitivity of human visual perception.

Omega Optical's standard photopic filters transmit from the optical wavelengths range above 200nm. These refractory oxide photopic eye response filters pass the wavelength of light in proportion to the eyes' response. The transmission of these filters, when combined with a broadband source and detector, is very similar to the spectral response of the human eye.

Click here for Omega's standard photopic filters in 25mm, 38mm, and 50mm sizes, or contact contact us to request a quote for a custom photopic or scotopic filter.

Download Transmission CSV Data for Omega's Photopic Filter. The spectral curve and ascii data is a typical representation of this filter's performance, but may vary due to production and design variations. Omega only guarantees this part to meet the product specifications listed.

Key Features

  • < 3% Integrated Error from the CIE 1931 Photopic Luminosity Standard
  • Peak transmission > 95% at 555nm (+/- 2nm)
  • Standard Sizes: 25mm, 38mm, and 50mm
  • Thickness: 2mm


  • Allows silicon detectors or cameras to simulate human visual perception of brightness across the visible spectrum.