Photosensitive emulsion for holographic plates and method

Details Photosensitive emulsion for holographic plates and method Photosensitive emulsion for holographic plates and method

1989-01-23

1991-05-21

Hamilton, Cynthia

Radiation imagery chemistry: process, composition, or product th

Holographic process, composition, or product

Composition or product or process of making the same

430281, 430906, 430270, G03C 166

Patent

active

050174479

ABSTRACT:
The optical image properties of gelatin holograms are improved by reducing uneven shrinkage during chemical development. This is accomplished by introducing from 2 to 10 weight percent of a water soluble sizing agent into the gelatin. Suitable sizing agents include polyvinylpyrrolidone homopolymer and polyvinylpyrrolidone-vinyl acetate copolymers.

REFERENCES:
patent: 2500028 (1950-03-01), Griggs et al.
patent: 3617274 (1968-03-01), Lin
patent: 3909273 (1975-09-01), Levinos
patent: 3963490 (1976-06-01), Graube
patent: 4012256 (1977-03-01), Levinos

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