发明授权
- 专利标题: Optical recording medium
- 专利标题(中): 光记录介质
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申请号: US10480368申请日: 2003-04-04
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公开(公告)号: US07420908B2公开(公告)日: 2008-09-02
- 发明人: Koichiro Kishima , Kimihiro Saito
- 申请人: Koichiro Kishima , Kimihiro Saito
- 申请人地址: JP Tokyo
- 专利权人: Sony Corporation
- 当前专利权人: Sony Corporation
- 当前专利权人地址: JP Tokyo
- 代理机构: Rockey, Depke & Lyons, LLC
- 代理商 Robert J. Depke
- 优先权: JP2002-112884 20020416
- 国际申请: PCT/JP03/04354 WO 20030404
- 国际公布: WO03/088233 WO 20031023
- 主分类号: G11B7/24
- IPC分类号: G11B7/24
摘要:
An optical recording medium including two or more recording layers which are capable of transmitting at a high transmittance recording light or reproducing light for performing recording/reproducing of a first recording layer (3) without having to make the thickness of a second recording film (5) positioned towards the side from which the recording light or the reproducing light enters. An optical recording medium including two or more recording layers, and which includes the first recording layer (3), the second recording layer (5) positioned further towards, with an intermediate layer (4) in between, the side from which the recording light or the reproducing light enters than is the first recording layer (3), and includes, between the above-mentioned intermediate layer (4) and the above-mentioned second recording layer (5), a dielectric layer (7) for increasing the transmittance for light passing through the above-mentioned second recording layer as the incident angle of the light becomes greater.
公开/授权文献
- US20040246868A1 Optical recording medium 公开/授权日:2004-12-09
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