Light-sensitive silver halide grain

Details Light-sensitive silver halide grain Light-sensitive silver halide grain

2005-06-28

2005-06-28

Letscher, Geraldine (Department: 1752)

Radiation imagery chemistry: process, composition, or product th

Radiation sensitive product

Silver compound sensitizer containing

C430S567000, C430S599000, C430S600000, C430S605000

Reexamination Certificate

active

06911303

ABSTRACT:
A light-sensitive silver halide grain having an absorption band in a wavelength region of visible light is prepared to provide a silver halide photographic material having high spectral sensitivity in the visible region. The silver halide photographic material contains the light-sensitive silver halide grain having a metal complex dopant having an absorption band which has a molar absorption coefficient of 10,000 or more in a wavelength region of visible light in an ultraviolet-visible absorption spectrum of a solution thereof.

REFERENCES:
patent: 3672901 (1972-06-01), Ohkubo et al.
patent: 5360712 (1994-11-01), Olm et al.
patent: 5821044 (1998-10-01), Bergthaller et al.
patent: 6335154 (2002-01-01), Asami et al.
patent: 6352823 (2002-03-01), Sato
patent: 6372419 (2002-04-01), Inaba et al.
patent: 6403294 (2002-06-01), Sato
Joe E. Maskasky, In Corporation of Spectral Sensitizing Dyes into Large AgBr Crystals, Photogr. Sci. Eng., 28, 202-207 (1984).
Joe E. Maskasky and Michael Haley, Observations on the Orthorhombic PbO Spectral Sensitization of AgCI, Photogr. Sci. Eng., 25, 225-229 (1981).

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