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Patent Searching and Data


Title:
PRODUCTION OF OPTICAL DISK
Document Type and Number:
Japanese Patent JPH07287864
Kind Code:
A
Abstract:

PURPOSE: To provide a production method of an optical disk by which no deterioration in mechanical characteristics of a light-transmitting substrate is caused in the production process, no distribution of pressure is produced during pits are formed, and an optical disk having stable qualities with no bubble remaining in a dry photosetting film can be efficiently obtd. with a simple equipment.

CONSTITUTION: A dry photosetting film 2 in an unhardened state is laminated on a light-transmitting substrate 1. The dry photosetting film 2 on the substrate 10 is gradually brought into contact with a stamper 32 in a linear contact area while a space 34 is formed between the substrate 10 having the dry photosetting film and the stamper 32 so that pits 5 are press formed in the unhardened dry photosetting film 2. Then the unhardened film 2 is irradiated with UV rays to harden the dry photosetting film 2, on which a reflecting film 3 and a protective film 4 are successively formed to produce an optical disk.


Inventors:
OGASAWARA KIYOHIDE
KOBAYASHI TAKAHIRO
FUJII KIYOAKI
OZASA NAOTO
FUJIMORI JIRO
Application Number:
JP7615694A
Publication Date:
October 31, 1995
Filing Date:
April 14, 1994
Export Citation:
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Assignee:
PIONEER ELECTRONIC CORP
PIONEER VIDEO CORP
International Classes:
B29C59/04; B29D17/00; G11B7/24; G11B7/26; (IPC1-7): G11B7/24; B29C59/04; B29D17/00; G11B7/26
Attorney, Agent or Firm:
Yasuo Ishikawa