Photographic information recording method

Details Photographic information recording method Photographic information recording method

1993-08-30

1994-12-27

Bowers, Jr., Charles L.

Radiation imagery chemistry: process, composition, or product th

Retrieving image made using radiation imagery

430553, 354106, G03C 1102

Patent

active

053764846

ABSTRACT:
A method for photographically recording an information pattern on a photographic film is disclosed. The method comprises the steps of (1) writing an information pattern at an area outside the picture taking area of a silver halide color photographic film with a red-light having an intensity peak at a wavelength of 620 nm or more emitted from a photoemission diode, (2) processing the color photographic film, and (3) optically reading an image of the pattern formed on the color photographic film with red-light having a intensity peak a wavelength of 620 nm or above. In the method, a red-sensitive silver halide emulsion layer of the color photographic film contains a coupler represented by the following Formula CU; ##STR1## wherein X is a substituent capable of splitting-off upon reaction with the oxidation product of an aromatic primary amine color developing agent; R.sup.1 is an aryl group or a heterocyclic group; R.sup.2 is a an aliphatic group or an aryl group; and the above groups represented by R.sup.1 or R.sup.2 each may have a substituent.

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