发明名称 |
Rotary actuator with a magnetic bias bearing configuration for rotating an optical element in an optical data storage system |
摘要 |
A rotary actuator utilizing a magnetically biased bearing. A magnetized rotor is held in close proximity to a ferromagnetic mount. The magnetic flux created by the magnetic rotor through the ferromagnetic mount creates a magnetic bias force on the rotor bearing surface. The rotary actuator with the magnetically biased bearing rotates a mounted mirror to direct a reading laser beam to act as a fine tracking actuator within an optical data storage system.
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申请公布号 |
US5563871(A) |
申请公布日期 |
1996.10.08 |
申请号 |
US19950484033 |
申请日期 |
1995.06.07 |
申请人 |
INTERNATIONAL BUSINESS MACHINES CORPORATION. |
发明人 |
BARGERHUFF, RICHARD A.;CHILDERS, EDWIN R.;LISSNER, RUDOLF W. |
分类号 |
G02B7/182;G11B7/085;G11B7/09;G11B11/105;H02K5/167;H02K26/00;(IPC1-7):G11B7/095;G02B26/08;G11B7/135;H02K1/17 |
主分类号 |
G02B7/182 |
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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