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
1991-03-04
1993-11-09
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
430495, 430945, 369284, 369288, G03C 100, G11B 724
Patent
active
052601650
ABSTRACT:
An optical information recording medium is composed of a substrate, and a recording layer formed on the substrate, the recording layer including (a) a first recording layer, (b) an intermediate, and (b) a second recording layer, which are successively overlaid on the substrate, the first recording layer containing as the main component an organic dye having a peak of spectral reflectivity near the wavelength of a light beam for the recording and reproduction of information, the intermediate layer being transparent to the light beam for recording and reproduction of information, and containing a material having a refractive index smaller than the refractive index of the second recording layer, and the second recording layer containing as the main component an organic dye having a peak of spectral absorbance near the wavelength of the light beam for recording and reproduction of information, and having a thickness by which a maximum reflectivity is exhibited.
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Ichinose Keiko
Satou Tsutomu
Angebranndt Martin
Bowers Jr. Charles L.
Ricoh & Company, Ltd.
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