Optics: measuring and testing – By shade or color – With color determination by light intensity comparison
Patent
1999-08-27
2000-08-22
Font, Frank G.
Optics: measuring and testing
By shade or color
With color determination by light intensity comparison
356402, G01J 346
Patent
active
061080950
ABSTRACT:
A method and a system for determining a color formula to enable reproduction of a color standard on one or more production lines, which includes for example, reading a color spectrum of the color standard with a spectrophotometer, and retrieving data such as absorption and scattering coefficients regarding a plurality of color samples produced by a production line. The color spectrum and coefficients are then processed, for example in a color model, to predict the color formula thereby reducing the need to adjust the color formula during start-up of the production line in order to match the color standard. Desirably, the method and system are operable to selectively provide a color formula for reproducing the color standard on any one of a plurality of different production lines.
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patent: 5740078 (1998-04-01), Cheetam et al.
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patent: 5841421 (1998-11-01), Cheetam et al.
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Breedlove Jill M.
Font Frank G.
General Electric Company
Goldman David C.
Lauchman Layla
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