(19)
(11) EP 0 613 042 A3

(12) EUROPEAN PATENT APPLICATION

(88) Date of publication A3:
20.08.1997 Bulletin 1997/34

(43) Date of publication A2:
31.08.1994 Bulletin 1994/35

(21) Application number: 94102737.7

(22) Date of filing: 23.02.1994
(51) International Patent Classification (IPC)5G03C 1/005, G03C 1/10, G03C 1/34
(84) Designated Contracting States:
BE DE FR GB NL

(30) Priority: 25.02.1993 JP 59286/93
19.04.1993 JP 91651/93

(71) Applicant: FUJI PHOTO FILM CO., LTD.
Kanagawa (JP)

(72) Inventor:
  • Kashi, Yasuo, c/o Fuji Photo Film Co., Ltd.
    Kanagawa (JP)

(74) Representative: Grünecker, Kinkeldey, Stockmair & Schwanhäusser Anwaltssozietät 
Maximilianstrasse 58
80538 München
80538 München (DE)

   


(54) Silver halide emulsion, photographic light-sensitive material, and process for preparation of seed crystal emulsion


(57) A silver halide emulsion is described, comprising tabular silver halide grains having an aspect ratio of not less than 3.0 and a grain diameter of not less than 0.8 µm as calculated in terms of sphere in a proportion of not less than 50% of all silver halide grains as calculated in terms of projected area, prepared by a process which comprises desalting a silver halide emulsion comprising tabular silver halide grains having an aspect ratio of not less than 2.0 in a proportion of not less than 50% of all silver halide grains as calculated in terms of projected area, and then using the emulsion as a seed crystal emulsion. A silver halide photographic material comprising a support having provided thereon at least one layer containing the silver halide emulsion and a process for the preparation of the seed crystal emulsion are also described.





Search report