发明公开
- 专利标题: Multi-layered optical disk
- 专利标题(中): Mehrlagige optische普拉特
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申请号: EP96107086.9申请日: 1990-10-29
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公开(公告)号: EP0731461A1公开(公告)日: 1996-09-11
- 发明人: Satoh, Isao , Fukushima, Yoshisisa , Takagi, Yuji , Azumatani, Yasushi , Hamasaka, Hiroshi
- 申请人: MATSUSHITA ELECTRIC INDUSTRIAL CO., LTD.
- 申请人地址: 1006, Kadoma Kadoma-shi, Osaka-fu 571 JP
- 专利权人: MATSUSHITA ELECTRIC INDUSTRIAL CO., LTD.
- 当前专利权人: MATSUSHITA ELECTRIC INDUSTRIAL CO., LTD.
- 当前专利权人地址: 1006, Kadoma Kadoma-shi, Osaka-fu 571 JP
- 代理机构: Caldwell, Judith Margaret
- 优先权: JP283241/89 19891030
- 主分类号: G11B7/24
- IPC分类号: G11B7/24 ; G11B7/085
摘要:
A multi-layered optical disk comprises recording layers (3, 4) on which data is recorded and reproduced by focusing a light beam on one of the recording layers (3, 4), each recording layer (3, 4) having an identification section (ID a , ID b ) storing an address of the recording layer characterised in that the recording layers are composed of at least a first recording layer (3) made of a first disk substrate and a second recording layer (4) made of a second disk substrate and a transparent binder layer (5) having a thickness of 10 to 100µm is disposed as a spacer between the first recording layer (3) and the second recording layer (4).
公开/授权文献
- EP0731461B1 Multi-layered optical disk 公开/授权日:2001-08-29
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