Patent EP0578110A2 successfully refreshed from Google Patents.
EP0566077A2
Expired / Lapsed
EP
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Photographic silver halide material comprising tabular silver halide grains plus distributed absorber dyes
Assignee: Eastman Kodak Co
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Filing: 1993-04-14
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Granted: —
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Expires: 2013-04-14
Abstract
Abstract A photographic recording material comprising a support bearing at least one photographic layer comprising a sensitized high aspect ratio tabular grain silver halide emulsion wherein the photographic material additionally comprises distributed dye that absorbs light in the region of the spectrum to which the silver halide is sensitized, the quantity of such distributed dye being such as to reduce the sensitivity of said silver halide by at least 20%.
Inventors
- 👤 Allan Francis c/o Eastman Kodak Co. Sowinski
- 👤 Richard Peter C/O Eastman Kodak Co. Szajewski
- 👤 James Parker c/o Eastman Kodak Co. Merrill
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-11-09 13:16
CPC Classifications
G; G03; G03C; G03C1/00; G03C1/005; G03C1/0051; G03C1/76; G03C1/825; G03C1/83; Y; Y10; Y10S; Y10S430/00; Y10S430/156; Y10S430/158
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
69 words
A photographic recording material comprising a support bearing at least one photographic layer comprising a sensitized high aspect ratio tabular grain silver halide emulsion wherein the photographic material additionally comprises distributed dye that absorbs light in the region of the spectrum to which the silver halide is sensitized, the quantity of such distributed dye being such as to reduce the sensitivity of said silver halide by at least 20%.
Claim 2
Dependent Claim
32 words
The photographic recording material of Claim 1 wherein said material comprises a color film comprising at least three photographic elements, each said element being sensitized to a different region of the spectrum.
Claim 3
Dependent Claim
56 words
The photographic recording material of Claim 2 wherein the most light sensitive layer of at least one photographic element comprises said sensitized high aspect ratio tabular grain silver halide emulsion; and wherein said distributed dye absorbs light in the region of the spectrum to which said high aspect ratio tabular grain silver halide emulsion is sensitized.
Claim 4
Dependent Claim
68 words
The photographic recording material according to Claim 3 wherein more than one of the most sensitized photographic layers comprise said sensitized high aspect ratio tabular grain silver halide emulsion; and wherein the photographic material comprises one or more distinct distributed dyes chosen to absorb light in the region of the spectrum to which at least one of said high aspect ratio tabular grain silver halide emulsions are sensitized.
Claim 5
Dependent Claim
25 words
The photographic material according to Claim 4 wherein the majority of the photographic layers comprise a sensitized high aspect ratio tabular grain silver halide emulsion.
Claim 6
Dependent Claim
26 words
The photographic recording material according to Claim 1 wherein said high aspect ratio tabular silver halide emulsion has an average aspect ratio of greater than 10.
Claim 7
Dependent Claim
31 words
The photographic recording material according to Claim 1 wherein said distributed dye is present in an amount sufficient to reduce the sensitivity of the silver halide by at least 25 percent.
Claim 8
Dependent Claim
25 words
The photographic recording element according to Claim 7 wherein said distributed dye comprises at least one of the dyes selected from the group consisting of
Claim 9
Dependent Claim
36 words
The photographic material according to Claim 1 wherein said photographic material further comprises a dye layer comprising a spatially fixed absorber dye which absorbs light in the same region of the spectrum as the distributed dye.
Claim 10
Dependent Claim
23 words
The photographic material of Claim 8 wherein said photographic material further comprises a spatially positioned absorber dye selected from the group consisting of
References Cited (Backward Citations)
No citation records indexed.
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