Radiation imagery chemistry: process – composition – or product th – Including control feature responsive to a test or measurement
Patent
1997-07-10
1998-07-14
Codd, Bernard P.
Radiation imagery chemistry: process, composition, or product th
Including control feature responsive to a test or measurement
430398, 430399, 430400, 396568, 396569, 396626, G03C 502, G03D 300
Patent
active
057801894
ABSTRACT:
In photographic processing apparatus, the processing solutions need to be replenished as they are used up. It is known to effect replenishment of chemicals in a paper processor by determining the amount of exposure given to the paper in the printing stage of such apparatus when copying an image on a filmstrip onto photographic paper, and using that information to calculate the amount of replenishment required to compensate exactly for the chemicals used up in processing that print. Described herein is a method of using data relating to the measured optical transmittance of an image on a filmstrip in the printing stage to control replenishment of the processing solutions in the film processing stage of the apparatus and also removal of image-dependent by-products produced in processing that filmstrip.
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Codd Bernard P.
Eastman Kodak Company
Pincelli Frank
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