COLOR MEASURING DEVICE CALIBRATION METHOD

PROBLEM TO BE SOLVED: To provide a calibration method for a filter color measuring device that includes at least three color channels.SOLUTION: A calibration matrix for transforming output signals of color channels into tristimulus color values is formed. The calibration is performed spectrally. Spe...

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Hauptverfasser:	THOMAS A LIANZA, ZHOU WANG LONG, BEAT FRICK, ANDREW MASIA, RICHARD FEDERICO
Format:	Patent
Sprache:	eng
Schlagworte:	COLORIMETRY MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT,POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRA-RED,VISIBLE OR ULTRA-VIOLET LIGHT MEASURING PHYSICS RADIATION PYROMETRY TESTING
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Beschreibung
Zusammenfassung:	PROBLEM TO BE SOLVED: To provide a calibration method for a filter color measuring device that includes at least three color channels.SOLUTION: A calibration matrix for transforming output signals of color channels into tristimulus color values is formed. The calibration is performed spectrally. Spectral sensitivities of the color channels of a color measuring device and spectral emission properties of typical light sources are measured and stored, and the calibration matrix is calculated from the spectral sensitivities and the spectral emission properties of the light sources and a spectral evaluation functions of a standard observer according to CIE 1931.