Method of preparing a hologram

Details Method of preparing a hologram Method of preparing a hologram

1986-06-24

1988-05-31

Shah, Mukund J.

Radiation imagery chemistry: process, composition, or product th

Holographic process, composition, or product

430 2, 430393, 430419, 430460, 430461, G03H 104, G03C 538, G03C 542, G03C 544

Patent

active

047480971

ABSTRACT:
A method of preparing a hologram which comprises subjecting holographic material to a holographic exposure, the holographic material comprising silver halide emulsion of which at least 80% by weight of the halide is bromide, developing the exposed material in a silver halide developing solution to yield developed silver, converting the developed silver to silver chloride using a bleaching agent selected from ferric ions, persulphate ions, chlorate ions, peroxides and water-soluble quinones, in the presence of chloride ions and then fixing out the silver chloride using a silver halide fixing agent which dissolves silver chloride but not silver bromide or silver iodobromide under the conditions of use.

REFERENCES:
patent: 3335004 (1967-08-01), Wrisley et al.
patent: 3615508 (1971-10-01), Stephen et al.
patent: 3702247 (1972-11-01), Williams et al.
patent: 4025345 (1977-05-01), Kido et al.
patent: 4524129 (1985-06-01), Kishimoto et al.

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