Patent ID: 7012633

Claim:
A color calibration method for an imaging color measurement device, comprising: selecting an array of detectors of optical radiation; selecting a plurality of optical elements designed to modify spectral power distribution of light incident on the array of detectors, such that a plurality of instances of irradiance of the array of detectors in a single measurement is resulted; obtaining an error correction matrix for the imaging color measurement device for each instance of irradiance of the array of detectors in a single color measurement; measuring a light source with known spectral output or chromaticity coordinates to obtain an irradiance response matrix of the imaging color measurement device for each of instance of irradiation of the array of the detectors in a single color measurement; applying the error correction matrix to the irradiance response matrix obtained by measuring the light source, so as to obtain a corrected irradiance response matrix for each instance of irradiation of the array of detectors in a single color measurement; and calculating a color correction coefficient according to the known spectral output or chromaticity coordinate of the light source and the corrected response for each instance of irradiation of the array of detectors in a single color measurement.