发明名称 |
OPTICAL DISK UNIT |
摘要 |
An optical disk unit (2001) comprising a reflection surface detection means (1010) for detecting a reflection surface, a focus control means (1202, 1003, 1009, 1008, 1003, 1012, 1005, 1204) for performing a focus control on a reflection surface so that the distance between the focal point of a light beam applied to an optical disk (2100) and the reflection surface falls within a specified error range, a moving means (1007) for moving the position of the light beam's focal point vertically with respect to the optical disk, and a control means (1006) for control the focus control means and the moving means.
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申请公布号 |
WO02067250(A1) |
申请公布日期 |
2002.08.29 |
申请号 |
WO2002JP01513 |
申请日期 |
2002.02.20 |
申请人 |
MATSUSHITA ELECTRIC INDUSTRIAL CO., LTD.;ISHIBASHI, HIROMICHI;WATANABE, KATSUYA;FUJIUNE, KENJI;YAMADA, SHINICHI;KUZE, YUUICHI |
发明人 |
ISHIBASHI, HIROMICHI;WATANABE, KATSUYA;FUJIUNE, KENJI;YAMADA, SHINICHI;KUZE, YUUICHI |
分类号 |
G11B7/00;G11B7/085;(IPC1-7):G11B7/085;G11B7/09 |
主分类号 |
G11B7/00 |
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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