H - Electricity – 01 – J
Patent
H - Electricity
01
J
88/121, 96/186,
H01J 29/45 (2006.01) G02B 5/22 (2006.01) G03C 7/02 (2006.01) G03C 7/12 (2006.01) H01J 31/38 (2006.01)
Patent
CA 1141584
Abstract of the Disclosure Color filter arrays for color imaging devices are disclosed. The arrays are formed in a single layer of a transparent binder containing at least one cationic photo- bleachable dye. The layer has a thickness less than 10 microns, and the dye is present in the layer in an amount sufficient to impart a density to the layer of at least about 0.5 in that portion of the spectrum in which it disclosed which includes the steps of (1) forming a layer or dyes and a sensitizer; (2) exposing the layer to a pat- tern which represents a set of filter elements so as to photo-bleach the photo-bleachable dye; and (3) fixing the ularly preferred embodiments, the dyes are chosen so that those which absorb at longer wavelengths have a lower bleaching efficiency than those which absorb at shorter wavelengths. processes thus creating a porous network permitting water contact with the incorporated nutrient mole- cules and their gradual egress in said water over a period of time such as for about a couple months to four years, or longer.
316306
Eastman Kodak Company
Gowling Lafleur Henderson Llp
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