Silver halide color photographic element with improved high density contrast and bright low density colors
AssigneeEastman Kodak Company
InventorsJames L. Edwards, Eric L. Bell, Benjamin T. Chen, Richard L. Parton
Life of this patent
Estimating the term…
Abstract
The invention provides a cyan color producing silver halide emulsion layer or a magenta color producing silver halide emulsion layer wherein said at least one layer has an exposure range of at least 0.6 log E from the point where the instantaneous contrast is 1.0 and wherein the instantaneous contrast of said layer increases as a function of increasing exposure over at least 70 percent of said exposure range.
Claims37
A photographic element comprising at least one layer said at least one layer comprising a silver halide emulsion layer containing a cyan dye-forming coupler capable of producing cyan color or a silver halide emulsion layer containing a magenta dye-forming coupler capable of producing a magenta color wherein said at least one layer has an exposure range of at least 0.6 log E from the point where the instantaneous contrast is 1.0 and wherein the instantaneous contrast of said layer increases as a function of increasing exposure over at least 70 percent of said exposure range.
Dependencies are inferred from the claim text.