EP 0531759 B1 20040602 - Process for preparing a photographic silver halide photosensitive material
Title (en)
Process for preparing a photographic silver halide photosensitive material
Title (de)
Verfahren zur Herstellung eines lichtempfindlichen fotographischen Silberhalogenidmaterials
Title (fr)
Procédé pour la préparation d' un matériau photographique photosensible à l'halogénure d'argent
Publication
Application
Priority
- JP 9143792 A 19920318
- JP 23101891 A 19910819
Abstract (en)
[origin: EP0531759A2] A silver halide photosensitive material is subject to J-band spectral sensitization in the infrared range such that it has a sensitization maximum at a longer wavelength than 730 nm and the sensitivity at the spectral sensitivity maximum wavelength is higher by a factor of at least 4.5 than the spectral sensitivity to light having a wavelength 30 nm longer than said spectral sensitivity maximum wavelength and higher by a factor of at least 2 than the spectral sensitivity to light having a wavelength 30 nm shorter than said spectral sensitivity maximum wavelength. The photosensitive material has high sensitivity to light in a specific wavelength range such as semiconductor laser light, but low sensitivity to light in other wavelength ranges and experiences a minimal lowering of sensitivity during storage.
IPC 1-7
IPC 8 full level
G03C 1/12 (2006.01); G03C 1/498 (2006.01); G03C 5/16 (2006.01); G03C 8/40 (2006.01)
CPC (source: EP)
G03C 1/127 (2013.01); G03C 1/49854 (2013.01); G03C 5/164 (2013.01); G03C 8/404 (2013.01)
Citation (examination)
- JP H04146431 A 19920520 - FUJI PHOTO FILM CO LTD
- "Progress of Basic Principles of Imaging Systems", 1987, VIEWEG AND SOHN, COLOGNE, article KAMPFER H.: "IR absorbing J-Aggregates of Dicabocyanine Dyes", pages: 366 - 369, XP002952869
Designated contracting state (EPC)
FR GB
DOCDB simple family (publication)
EP 0531759 A2 19930317; EP 0531759 A3 19930428; EP 0531759 B1 20040602
DOCDB simple family (application)
EP 92114097 A 19920818