发明名称 |
Wire-suspended objective lens actuator structure and method of assigning current pathways thereto |
摘要 |
A wire-suspended objective lens actuator structure and a method of assigning current pathways. The lens holder on the actuator structure has a group of focusing coils, a group of tracking coils and a group of slant adjustment coils. The coils are connected to four conductive wires. A first conductive wire controls the focusing coil and a second conductive wire controls the tracking coil. Similarly, a third conductive wire controls the slant adjustment coil. The ground terminals of all three groups of coils are connected in parallel to a fourth conductive wire. The fourth conductive wire serves as a common ground terminal. The control terminal of each group of coils is connected to a differential voltage-output current amplifier circuit or a differential voltage-output voltage amplifier circuit. Hence, the focusing, the tracking and the slant adjustment coils can be driven by differential voltages.
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申请公布号 |
US6714491(B1) |
申请公布日期 |
2004.03.30 |
申请号 |
US20000586302 |
申请日期 |
2000.06.02 |
申请人 |
INDUSTRIAL TECHNOLOGY RESEARCH INSTITUTE |
发明人 |
KE CHAU-YUAN;WEI LI-DING;HO MING-FENG |
分类号 |
G11B7/09;G11B7/095;H02K33/18;(IPC1-7):G11B7/00 |
主分类号 |
G11B7/09 |
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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