Imaging circradiometer

WP690E-Circ Imaging Circadiometer – Light Evaluations for Human Vision Science

WP690E-Circ alllows users to acquire precise scotopic, ipRGC, S-cone, L-cone and M-cone, radiance measurements of displays, luminaires, or other visual scenes. Photometrica software provides the tools to analyze single or many measurement images to gain understanding of the impacts to human physiological responses.

The WP690ES-Circ includes a built-in spectroradiometer for the acquisition of scene spectra. Measurements include angular radiance and radiant intensity distributions, and the ability to acquire high dynamic range scenes where intense lighting is combined with dark areas.

• Investigating the probability of
circadian disruption
• Blue light uniformity measurements
of displays and luminaires
• Evaluating the potential for
melatonin onset delay
• Tracking of blue light dosage
over time
• Testing of circadian lighting systems
and installations


Measures the Five CIE S 026/E:2018
α-Opic Radiances
• Up to 12 Megapixels
• Electronic Lens Control
• Optional Integrated

For special requirements - please contact us.