Radiation imagery chemistry: process – composition – or product th – Including control feature responsive to a test or measurement
Patent
1993-05-24
1994-07-12
Bowers, Jr., Charles L.
Radiation imagery chemistry: process, composition, or product th
Including control feature responsive to a test or measurement
430357, 430359, 430504, 430935, 118665, 118688, 354297, 356404, 356406, 427 8, G03C 500, G03C 700, G03C 146
Patent
active
053287878
ABSTRACT:
Sensitometric Quality Indicator Parameters (SQIP), including Color Radial Error (1), Average Density Error (2), Contrast Mismatch Error (3), HUE (4), and related Auxiliary Quality Parameters, are derived primarily from the deviations in aim values of the red, green, and blue density values over the standard range of exposure steps for a color photographic product. Normalized tolerance limit values common to SQIP 1-3 are established at one exposure reference level within the standard range of exposure steps. A composite graphical display of density deviations versus LOG H exposure, of SQIP 1-4 with associated tolerance limit values versus LOG H exposure, and of the Auxiliary Quality Parameters enables the rapid analysis and disposition of a batch of color photographic product with regard to sensitometric quality. By incorporating selected Auxiliary Quality Parameters, custom-weighted for a specific product, a quality objective function provides the basis for estimating and implementing prescriptive changes in the set points of calibrated process control variables to improve sensitometric quality.
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Clifford James D.
Robbins Raymond J.
Bowers Jr. Charles L.
Eastman Kodak Company
Pasterczyk J.
Snee Charles E.
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