Patent ID: 6066443
Filing Date: 2000-05-23
Classification: G03C

Abstract:
A photographic element comprising a silver halide emulsion spectrally sensitized to blue light by a dye of formula I to have a maximum blue sensitivity at less than 485 nm: ##STR33## wherein: X and X' each independently represent the atoms necessary to complete a thiazole, benzothiazole, naphthothiazole, oxazole, benzoxazole, naphthoxazole, selenazole, benzoselenazole, naphthoselenazole, imidazole, benzimidazole, or naphtho-imidazole, and X may be further substituted and X' substituted or unsubstituted;Z.sub.1 represents a pyrrole containing group in which the pyrrole ring is directly appended to X;R.sub.1 and R.sub.2 each independently represent substituted or unsubstituted hydrocarbon containing 1 to 10 carbon atoms; andA represents a counter-ion as needed to balance a charge of the molecule; with the proviso that any substituents on the dye, other than Z.sub.1, are non-aromatic.