发明名称 |
Driving device for objective lens and optical pick up using the same |
摘要 |
To reduce vibrations occurring in an objective lens driving apparatus there is provided an objective lens driving apparatus used in an optical pickup that reads/writes information from or onto an optical disk using an objective lens. The objective lens driving apparatus has a lens holder that holds an objective lens in a center part thereof, and a plurality of tracking coils that are disposed on both sides of the lens holder. The mass of a pair of first tracking coils that are disposed on one of the sides is greater than the mass of a pair of second tracking coils that are disposed on the other side.
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申请公布号 |
US2006083121(A1) |
申请公布日期 |
2006.04.20 |
申请号 |
US20050109617 |
申请日期 |
2005.04.20 |
申请人 |
KIMURA KATSUHIKO;SENGA JUNICHI |
发明人 |
KIMURA KATSUHIKO;SENGA JUNICHI |
分类号 |
G11B7/00 |
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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