发明名称 |
Optical pickup |
摘要 |
An inventive optical pickup includes: a base; a movable part; a fixed part; and a first yoke. The movable part, fixed part and first yoke are provided over the base. The movable part is provided with: a hologram element; a package equipped with a laser/photodetectors integrated element in which a semiconductor laser and photodetectors are integrated; and an objective lens. A magnet is provided on each of second yokes provided on the base, and a heat dissipating medium is provided in a gap between a package metal section of the package and another magnet.
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申请公布号 |
US7146621(B2) |
申请公布日期 |
2006.12.05 |
申请号 |
US20040762383 |
申请日期 |
2004.01.23 |
申请人 |
MATSUSHITA ELECTRIC INDUSTRIAL CO., LTD. |
发明人 |
ONOZAWA KAZUTOSHI;UEDA DAISUKE |
分类号 |
G11B33/14;G11B7/09;G11B7/12;G11B7/125 |
主分类号 |
G11B33/14 |
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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