Video Photometer

Sept. 7, 2000
The Model 820 video photometer measures absolute brightness of any size sample or scene and provides quantitative data.

The Model 820 video photometer measures absolute brightness of any size sample or scene and provides quantitative data. The photometer from Tricor Systems Inc., Elgin, Ill., measures the performance of lamps, LEDs, backlit panels, and control switches. It also quantifies paint reflectance, hemispherical reflectance, micropitting, mirror reflective haze, and other appearance characteristics. The 820 produces a 640 X 480-pixel image with a digitized 256 grayscale. Analysis tools include Eyeppearance software, which establishes photometric levels for an image. An interface offers menu options for grayscale-image analysis. When calibration transform file is loaded, the software translates relative gray levels into absolute radiometric levels. Pixel radiance and histogram distributions are given in photopic units.

Sponsored Recommendations

June 27, 2025
Ensure workplace safety and compliance with our comprehensive Lockout/Tagout (LOTO) Safety Training course. Learn critical procedures to prevent serious injuries.
June 27, 2025
Join our expert webinar to discover essential safety control measures and best practices for engineering a truly safe and compliant industrial environment.
June 25, 2025
An innovative aircraft with electric drives combines the best of both worlds. The cross between drone and helicopter could mean significantly faster and more efficient air emergency...
June 25, 2025
Effective when other materials fail, ceramics are particularly suitable for applications requiring wear and chemical resistance, sliding characteristics or biocompatibility. Discover...

Voice your opinion!

To join the conversation, and become an exclusive member of Machine Design, create an account today!