Optics: measuring and testing – By shade or color – Tristimulus examination
Patent
1990-12-17
1993-12-21
McGraw, Vincent P.
Optics: measuring and testing
By shade or color
Tristimulus examination
356416, 356419, 356223, 358 10, 250226, G01N 2125
Patent
active
052725189
ABSTRACT:
Apparatus for monitoring, converting and calibrating the spectra displayed by a colored object, using wavelength dispersion provided by a variable wavelength filter. The apparatus may serve as a spectrophotometer, as a colorimeter, or as a spectroradiometer or other device that monitors and calibrates a light signal by decomposition of the signal into a wavelength distribution. The apparatus may also be used as part of a feedback network to monitor and correct colors displayed by a color monitor, color printer, color scanner or other similar peripheral device controlled by a computer that is part of the network.
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Hewlett--Packard Company
Keesee LaCharles P.
McGraw Vincent P.
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