Radiation imagery chemistry: process – composition – or product th – Post imaging processing – Physical developing
Patent
1992-06-30
1993-07-27
Rutledge, D.
Radiation imagery chemistry: process, composition, or product th
Post imaging processing
Physical developing
430320, G03D 1308
Patent
active
052314405
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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Ishitsuka Takeshi
Kuramitsu Youko
Tani Motoaki
Yamagishi Yasuo
Fujitsu Limited
Rutledge D.
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