发明授权
- 专利标题: Optical information recording medium and manufacturing method thereof
- 专利标题(中): 光信息记录介质及其制造方法
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申请号: US10530426申请日: 2003-10-09
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公开(公告)号: US07645499B2公开(公告)日: 2010-01-12
- 发明人: Haruhiko Habuta , Ken'ichi Nagata , Yoshitaka Sakaue , Hideo Kusada
- 申请人: Haruhiko Habuta , Ken'ichi Nagata , Yoshitaka Sakaue , Hideo Kusada
- 申请人地址: JP Osaka
- 专利权人: Panasonic Corporation
- 当前专利权人: Panasonic Corporation
- 当前专利权人地址: JP Osaka
- 代理机构: Hamre, Schumann, Mueller & Larson, P.C.
- 优先权: JP2002-297291 20021010
- 国际申请: PCT/JP03/12937 WO 20031009
- 国际公布: WO2004/034390 WO 20040422
- 主分类号: B32B3/02
- IPC分类号: B32B3/02 ; G11B7/243 ; G03C1/76
摘要:
The optical information recording medium of the present invention includes a plurality of information layers provided on a substrate and an optical separating layer provided between information layer adjacent to each other, and information is recorded or reproduced by irradiation of a laser beam. When an information layer that is provided closest to a laser beam incident side of the plurality of information layers is taken as a first information layer and an optical separating layer provided in contact with the first information layer is taken as a first optical separating layer, then the first information layer comprises a recording layer, a transmittance adjusting layer that adjusts a transmittance of the first information layer, and a low refractive index layer provided between the transmittance adjusting layer and the first optical separating layer.
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