发明名称 |
OPTICAL INFORMATION RECORDING MEDIUM AND MANUFACTURING METHOD THEREOF |
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. <IMAGE>
|
申请公布号 |
EP1551018(A1) |
申请公布日期 |
2005.07.06 |
申请号 |
EP20030754053 |
申请日期 |
2003.10.09 |
申请人 |
MATSUSHITA ELECTRIC INDUSTRIAL CO., LTD. |
发明人 |
HABUTA, HARUHIKO;NAGATA, KEN'ICHI;SAKAUE, YOSHITAKA;KUSADA, HIDEO |
分类号 |
G11B7/24;G11B7/257;G11B7/26;(IPC1-7):G11B7/24 |
主分类号 |
G11B7/24 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|