Multicolor optical filters and process for producing the same

Details Multicolor optical filters and process for producing the same Multicolor optical filters and process for producing the same

1980-11-26

1983-05-31

Brown, J. Travis

Radiation imagery chemistry: process, composition, or product th

Radiation modifying product or process of making

Screen other than for cathode-ray tube

430364, 430365, 430376, 430948, 430952, 350317, G03F 500

Patent

active

043861431

ABSTRACT:
A low priced multicolor optical filter having optical black and a process for producing the same are disclosed; the filter comprising a base having thereon one black-and-white silver halide emulsion layer in which at least two color dye patterns and at least one optical black area comprising silver or silver and a dye are formed.

REFERENCES:
patent: 2186730 (1940-01-01), Schneider
patent: 2628902 (1953-02-01), Raibourn
patent: 2683769 (1954-07-01), Banning
patent: 2704252 (1955-03-01), Gresham
patent: 2820090 (1958-01-01), Mountain
patent: 3486895 (1969-12-01), Haugh
patent: 3592649 (1971-07-01), Parsonage et al.
patent: 3955983 (1976-05-01), Nakajima et al.
patent: 4081277 (1978-03-01), Brault et al.
patent: 4271246 (1981-06-01), Sato et al.

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