Photometry is the radiometric measurement of light as perceived by the human eye. A photopic filter passes the wavelengths of light in proportion to the eye’s response.

International Light’s proprietary photopic filters consist of several elements designed so as to match the CIE photopic response curve to better than 1% at all wavelengths. Most safety regulations for measurement of illumination are photopic measurements and require the integration of a photopic filter in the system.

If you have an enquiry regarding Photometric Light Measurement, please contact our sales team via one of the methods on the right hand side of this page.

Buy Online


Purchase now at 247able.

Buy Online Now

Request a price from sales team.

Request for Quote

Call Us


Talk to one of our Specialists.



No time to call?
Send us an email.

Request for Callback


Request for Quote

  • Details

  • Enquiry

  • Enquiry Type