Global Patent Index - EP 0531759 A3

EP 0531759 A3 19930428 - PHOTOGRAPHIC SILVER HALIDE PHOTOSENSITIVE MATERIAL

Title (en)

PHOTOGRAPHIC SILVER HALIDE PHOTOSENSITIVE MATERIAL

Publication

EP 0531759 A3 19930428 (EN)

Application

EP 92114097 A 19920818

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

G03C 1/12; G03C 1/498

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 (search report)

  • [X] EP 0342553 A2 19891123 - KONISHIROKU PHOTO IND [JP]
  • [X] EP 0244184 A2 19871104 - KONISHIROKU PHOTO IND [JP]
  • [X] EP 0368356 A1 19900516 - FUJI PHOTO FILM CO LTD [JP]
  • [A] EP 0276319 A1 19880803 - FUJI PHOTO FILM CO LTD [JP]
  • [A] GB 1422057 A 19760121 - FUJI PHOTO FILM CO LTD
  • [A] INGO H LEUBNER: "Infrared spectral sensitization of photothermographic materials", RESEARCH DISCLOSURE, vol. 152, December 1976 (1976-12-01), HAVANT GB, pages 61 - 62, XP001149175
  • [A] HAYASHI Y ET AL: "SPECTRAL SENSITIZATION OF THERMALLY PROCESSED SILVER FILM BY CYANINE DYES", JOURNAL OF IMAGING SCIENCE, SOC. FOR IMAGING SCIENCE AND TECHNOLOGY, SPRINGFIELD, VA, US, vol. 33, no. 4, 1 July 1989 (1989-07-01), pages 124 - 129, XP000045365
  • [A] B H CARROLL ET AL: "Introduction to photographic theory", 1980, WILEY-INTERSCIENCE, NEW YORK, US, XP001149176

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