Patent ID: 6696215
Filing Date: 2004-02-24
Classification: G03C,Y10S

Abstract:
A silver halide photographic light-sensitive material comprising at least one silver halide emulsion layer on a support, which contains at least one compound selected from compounds of the following Types (i) to (iv) and has a characteristic curve drawn in orthogonal coordinates of logarithm of light exposure (x-axis) and optical density (y-axis) using equal unit lengths for the both axes, on which gamma is 5.0 or more for the optical density range of 0.3-3.0:Type (i)a compound of which one-electron oxidized derivative produced by one electron oxidation of the compound is capable of releasing two or more electrons with a bond cleavage; Type (ii)a compound of which one-electron oxidized derivative produced by one electron oxidation of the compound is capable of releasing one more electron with a carbon-carbon bond cleavage, and which has two or more groups adsorptive to silver halide in the molecule; Type (iii)a compound of which one-electron oxidized derivative produced by one electron oxidation of the compound is capable of releasing one or more electrons after undergoing a bond formation reaction; Type (iv)a compound of which one-electron oxidized derivative produced by one electron oxidation of the compound is capable of releasing one or more electrons after undergoing an intramolecular ring cleavage reaction.