Global Patent Index - EP 0345483 A3

EP 0345483 A3 19901024 - LIGHT-SENSITIVE ELEMENTS FOR RADIOGRAPHIC USE AND PROCESS FOR THE FORMATION OF AN X-RAY IMAGE

Title (en)

LIGHT-SENSITIVE ELEMENTS FOR RADIOGRAPHIC USE AND PROCESS FOR THE FORMATION OF AN X-RAY IMAGE

Publication

EP 0345483 A3 19901024 (EN)

Application

EP 89108559 A 19890512

Priority

IT 2090388 A 19880609

Abstract (en)

[origin: EP0345483A2] A light-sensitive silver halide element for radiographic use with X-ray intensifying screens comprising coated on at least one side of a transparent support base at least a spectrally sensitized silver halide emulsion layer and, between the base and a silver halide emulsion layer, a hydrophilic colloid layer containing substantially light-insensitive silver halide grains on which a spectral sensitizing dye is adsorbed, said dye adsorbed on said grains having the absorption in a region of the electromagnetic spectrum corresponding substantially to the spectral sensitivity of the silver halide emulsion, is characterized by the fact that said silver halide grains are low iodide silver bromoiodide grains having an average grain size in the range of from 0.01 to 0.1 mu m adsorbed with said spectral sensitizing dye to form a J-band. The invention allows the use of low coverage weights of silver halide light-sensitive elements and provides X-ray images with a favorable image quality and sensitivity ratio.

IPC 1-7

G03C 1/02; G03C 1/12; G03C 5/16

IPC 8 full level

G03C 1/035 (2006.01); G03C 1/10 (2006.01); G03C 1/12 (2006.01); G03C 1/825 (2006.01); G03C 5/16 (2006.01)

CPC (source: EP)

G03C 1/035 (2013.01); G03C 1/12 (2013.01); G03C 1/825 (2013.01); G03C 5/16 (2013.01)

Citation (search report)

  • [X] US 4574115 A 19860304 - ADACHI KEIICHI [JP], et al
  • [YD] US 4639411 A 19870127 - DAUBENDIEK RICHARD L [US], et al
  • [XD] PATENT ABSTRACTS OF JAPAN vol. 11, no. 308 (P-624)(2755) 08 October 1987, & JP-A-62 099748 (FUJI PHOTO FILM) 09 May 1987,
  • [Y] PATENT ABSTRACTS OF JAPAN vol. 11, no. 151 (P-576)(2598) 16 May 1987, & JP-A-61 285445 (FUJI PHOTO FILM) 16 December 1986,
  • [XP] PATENT ABSTRACTS OF JAPAN vol. 13, no. 291 (P-893)(3639) 06 July 1989, & JP-A-01 073336 (KONICA CORPORATION) 17 March 1989,

Designated contracting state (EPC)

DE FR GB

DOCDB simple family (publication)

EP 0345483 A2 19891213; EP 0345483 A3 19901024; EP 0345483 B1 19941228; DE 68920206 D1 19950209; DE 68920206 T2 19950810; IT 1217814 B 19900330; IT 8820903 A0 19880609; JP H0229641 A 19900131

DOCDB simple family (application)

EP 89108559 A 19890512; DE 68920206 T 19890512; IT 2090388 A 19880609; JP 14654389 A 19890608