Method for manufacturing optical disk

Details Method for manufacturing optical disk Method for manufacturing optical disk

1994-09-28

1997-07-08

Chea, Thorl

Radiation imagery chemistry: process, composition, or product th

Imaging affecting physical property of radiation sensitive...

Making named article

430322, 430325, 430329, 205 70, 205 68, 264106, G03C 500

Patent

active

056459785

ABSTRACT:
Methods for manufacturing an optical disk having spiral or concentric grooves and land portions between the grooves are disclosed. In one aspect, the methods include projection of light spots onto a photosensitive material so that areas of the photosensitive material exposed to a first light spot form the pattern of spiral or concentric grooves and that areas of said photosensitive material which correspond to said land portions and are exposed to a second light spot form a predetermined pit pattern.

REFERENCES:
patent: 4535439 (1985-08-01), Satoh et al.
patent: 4894260 (1990-01-01), Kumasaka et al.
patent: 4947384 (1990-08-01), Suzuki et al.
patent: 4985616 (1991-01-01), Nakamura et al.
patent: 4985881 (1991-01-01), Saito et al.
patent: 5015338 (1991-05-01), Tabuchi et al.
patent: 5214635 (1993-05-01), Satoh et al.
patent: 5338178 (1994-08-01), Kato et al.

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