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EP 0272218 A2 19880622 - Method of preparing a hologram.

Title (en)

Method of preparing a hologram.

Title (de)

Verfahren zur Herstellung eines Hologramms.

Title (fr)

Procédé de préparation d'un hologramme.

Publication

EP 0272218 A2 19880622 (EN)

Application

EP 87810745 A 19871211

Priority

GB 8630187 A 19861217

Abstract (en)

Method of preparing a hologram which is of the silver halide in gelatin binder type which method comprises holographically exposing, developing, and bleaching holographic materials by means of a rehalogenation bleach bath, which contains a water-soluble halide and a ferric salt of an acetic acid derivative. Holograms thus prepared exhibit less haze and stain.

IPC 1-7

G03C 5/44; G03H 1/18

IPC 8 full level

G03C 5/44 (2006.01); G03H 1/02 (2006.01)

CPC (source: EP)

G03C 5/44 (2013.01)

Designated contracting state (EPC)

BE CH DE FR GB IT LI NL

DOCDB simple family (publication)

EP 0272218 A2 19880622; EP 0272218 A3 19890802; GB 8630187 D0 19870128; JP S63163344 A 19880706

DOCDB simple family (application)

EP 87810745 A 19871211; GB 8630187 A 19861217; JP 31764887 A 19871217