Method of and apparatus for forming volume type phase hologram

Details Method of and apparatus for forming volume type phase hologram Method of and apparatus for forming volume type phase hologram

1989-10-04

1992-10-13

Robinson, Ellis P.

Radiation imagery chemistry: process, composition, or product th

Holographic process, composition, or product

430 2, G03H 104

Patent

active

051549948

ABSTRACT:
A method of and apparatus for forming a volume type phase hologram comprising the steps of, after exposure of a holographic material comprising a polymeric matrix having a radiation active substance associated therewith to an interference pattern of radiation, dipping the pattern-wise exposed holographic material in a swelling solution consisting of a first solvent which can act as a good solvent for the polymer of the matrix and a second solvent which can act as a poor solvent for the polymer and has a higher boiling point than that of the first solvent, and then pulling the swollen holographic material up from the swelling solution, whereby uniformly developed holograms having a large size and high qualities can be easily produced by a simple production process.

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