Colorimeter for measurement of temporally variant light sources

Details Colorimeter for measurement of temporally variant light sources Colorimeter for measurement of temporally variant light sources

1997-04-04

1999-04-06

Hantis, K. P.

Optics: measuring and testing

By shade or color

Tristimulus examination

356406, G01N 2125

Patent

active

058925856

ABSTRACT:
A colorimeter method and apparatus is described that is used to accurately deduce the color of a source which is varying in intensity with respect to time. The colorimeter consists of a plurality of sensors with varied spectral responsivity, a means of shielding these sensors from the effects of ambient illumination and a computational element to analyze the temporal and intensity variation of the signal under measurement. The output from the sensors is integrated and analyzed based upon the measured light intensity, time variant, and characteristics of the source. Sources such as CRT monitors, Flat Panel displays, and stroboscopic illuminators, are typical representations of time variant sources.

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