Photo Research, the world leader in light measurement, has been providing light measurement solutions for over 60 years.

We manufacture a complete line of spot photometers and colorimeters, video photometers and colorimeters and spectroradiometers.

In addition to measuring the lumens, watts, millicandelas, radiant intensity, peak and dominant wavelength and chromaticity coordinates of LEDs, our instruments provide full capabilities for measuring the luminance, color and spectral characteristics of OLED, LCD, CRT, PDP, DLP and other display technologies.