Radiation imagery chemistry: process – composition – or product th – Holographic process – composition – or product
Patent
1993-01-25
1993-08-31
Bowers, Jr., Charles L.
Radiation imagery chemistry: process, composition, or product th
Holographic process, composition, or product
430 2, 430290, 359 1, 359 3, G03H 102
Patent
active
052407950
ABSTRACT:
A volume phase type hologram film has a diffraction grating recorded in a film composed mainly of poly(N-vinylcarbazole). The poly(N-vinylcarbazole) as the main component has a weight-average molecular weight of not less than 1,000,000 and a molecular weight distribution of not more than 3. In the poly(N-vinylcarbazole), the content of a fraction of poly(N-vinylcarbazole) having a weight-average molecular weight of not more than 200,000 does not exceed 1% by weight.
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Kishi Hiroyoshi
Kushibiki Nobuo
Kuwayama Tetsuro
Taniguchi Naosato
Yoshinaga Yoko
Angebranndt Martin J.
Bowers Jr. Charles L.
Canon Kabushiki Kaisha
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