Document Type and Number:
Japanese Patent JPH0568778
Kind Code:
B2
Abstract:
The invention concerns a recording medium for an optics high-density data storage and retrieval system designed to record and/or read data on a recording layer supported on a flat transparent plastic substrate by means of an incident laser beam passing through the flat transparent plastic substrate, where the recording medium is characterized in that the absolute values of the difference between the refractive index (nz) in the direction perpendicular to the flat surface of the transparent plastic substrate and the refractive indexes (nx) and (ny) in the direction parallel to the flat surface thereof, that is, (nz-nx) and (nz-ny), are smaller than 4 x 10<-><4>. In addition, the invention concerns a process for the production of the set recording medium.
Inventors:
INOTSUKA AKIHIRO
KIZAWA YOSHIO
YAMASHITA MITSURU
KIZAWA YOSHIO
YAMASHITA MITSURU
Application Number:
JP4590086A
Publication Date:
September 29, 1993
Filing Date:
March 03, 1986
Export Citation:
Assignee:
DAICEL CHEM
International Classes:
G11B11/10; B29C45/00; B29C45/26; B29C45/57; B29C45/70; B29D17/00; C08G64/00; G11B7/24047; G11B7/2405; G11B7/24073; G11B7/24079; G11B7/2433; G11B7/253; G11B7/2533; G11B7/2534; G11B7/26; G11B11/105; B29L17/00; (IPC1-7): G11B7/24; B29C45/57; B29C45/70; G11B7/24
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