发明名称 |
Multilayer optical disk |
摘要 |
A multilayer optical disk having an information storage layer which can as well as be reproduced by a general purpose reproducing apparatus, for example, a compact disk player, and from which information can be read from other information storage layers by using an exclusive reproducing apparatus. The method of manufacturing a multilayer disk comprises the steps of forming a first substrate having a first information storage area enabling reproduction of information therein with a first light beam having a wavelength of 770 nm to 830 nm; forming a second substrate having a second information storage area enabling reproduction of information therein with a second light beam having a wavelength of 615-655 nm but which is relatively transparent with respect to said first light beam; and bonding said first substrate to said second substrate together without said first and second said information areas facing each other.
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申请公布号 |
US2001046192(A1) |
申请公布日期 |
2001.11.29 |
申请号 |
US20010798190 |
申请日期 |
2001.03.02 |
申请人 |
KANEKO MASAHIKO;UMEZU NOBUHIKO;ARATANI KATSUHISA;NAKAOKI ARIYOSHI |
发明人 |
KANEKO MASAHIKO;UMEZU NOBUHIKO;ARATANI KATSUHISA;NAKAOKI ARIYOSHI |
分类号 |
G11B7/125;G11B7/005;G11B7/085;G11B7/24;G11B7/244;G11B7/257;G11B7/258;(IPC1-7):G11B5/09 |
主分类号 |
G11B7/125 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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