Method and apparatus for dehydrating dichromatic gelatin hologra

Details Method and apparatus for dehydrating dichromatic gelatin hologra Method and apparatus for dehydrating dichromatic gelatin hologra

1987-09-21

1989-08-01

Dees, Jose G.

Radiation imagery chemistry: process, composition, or product th

Holographic process, composition, or product

430 2, 430325, 430331, 430321, 430290, G03H 118, G03H 104

Patent

active

048533068

ABSTRACT:
A method of manufacturing optical elements, such as for head-up displays, from holographically recorded interference patterns in a dichromatic gelatin is disclosed. The exposed hologram pattern is developed through hydration, the hydrated hologram gelatin is dehydrated by contacting the hydrated gelatin with a mixture of isopropyl alcohol and an inert anhydrous fluid, such as a liquid fluorinated hydrocarbon solution. The dehydrated hologram pattern can then be subsequently stabilized, for example, by baking.

REFERENCES:
patent: 4025345 (1977-05-01), Kido et al.
patent: 4029507 (1977-06-01), Wehner et al.
patent: 4133600 (1979-01-01), Russell et al.
patent: 4367911 (1983-01-01), Graube
patent: 4510221 (1985-04-01), Gorin et al.
patent: 4530564 (1985-07-01), Close

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