Latent image thick refractive index recordings

Details Latent image thick refractive index recordings Latent image thick refractive index recordings

1977-05-31

1979-11-06

Kimlin, Edward C.

Radiation imagery chemistry: process, composition, or product th

Imaging affecting physical property of radiation sensitive...

Light scattering or refractive index image formation

430270, 430285, 430523, G03C 504, G03C 172

Patent

active

041734750

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: 3864130 (1975-02-01), Nassenstein et al.
patent: 3888672 (1975-06-01), Lee
patent: 4081276 (1978-03-01), Crivello

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