Radiation imagery chemistry: process – composition – or product th – Imaging affecting physical property of radiation sensitive... – Radiation sensitive composition or product or process of making
Patent
1995-08-07
1996-06-18
Bowers, Jr., Charles L.
Radiation imagery chemistry: process, composition, or product th
Imaging affecting physical property of radiation sensitive...
Radiation sensitive composition or product or process of making
430 21, 430945, 3692752, 369284, G11B 724
Patent
active
055276610
ABSTRACT:
An optical recording medium according to the present invention includes a substrate, and a recording film formed on the substrate, when receiving a laser beam for recording, the recording film taking either a first structural state or a second structural state according to the intensity of the laser beam; when receiving a laser beam for reproducing, the recording film partially changing the optical phase of the laser beam for reproducing according to the structural state, thereby changing the intensity of the laser beam for reproducing, wherein the optical absorbance of the recording film in the first structural state is substantially equal to that of the recording film in the second structural state, and the refractive index of the recording film in the first structural state is substantially different from that of the recording film in the second structural state.
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Abstract of JP 2-266978, "Optical Information Recording Medium", Kobayashi (Oct. 1990).
Akahira Nobuo
Nagata Ken'ichi
Nishiuchi Ken'ichi
Ohno Eiji
Sakaue Yoshitaka
Bowers Jr. Charles L.
Matsushita Electric - Industrial Co., Ltd.
McPherson John A.
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