Sensitized porous bodies useful for producing thick refractive i

Details Sensitized porous bodies useful for producing thick refractive i Sensitized porous bodies useful for producing thick refractive i

1978-05-03

1980-02-05

Kimlin, Edward C.

Radiation imagery chemistry: process, composition, or product th

Holographic process, composition, or product

Composition or product or process of making the same

430 1, 430290, G03C 172, G03C 504

Patent

active

041871111

ABSTRACT:
A latent-imaging photopolymer system for recording thick refractive index patterns is disclosed. The system utilizes a porous matrix which has been sensitized by chemisorption of a photosensitive polymerization initiator. The sensitized matrix is exposed to light in the desired pattern. This light destroys initiator to impress the pattern. Then the pores are filled with a monomer composition. Finally the entire filled matrix is irradiated to induce polymerization initiation by the sensitizer remaining after the initial exposure. Polymerization produces locally induced refractive index gradients corresponding to the pattern of the light in the initial exposure step.

REFERENCES:
patent: 3661584 (1972-05-01), Van Den Heuvel et al.
patent: 3779775 (1973-12-01), Chiba et al.
patent: 3864130 (1975-02-01), Nassenstein et al.
patent: 3888672 (1975-06-01), Lee
patent: 3993489 (1976-11-01), Heimsch
patent: 4069049 (1978-01-01), Reich et al.
patent: 4081276 (1978-03-01), Crivello

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