发明名称 |
Objective lens driving device |
摘要 |
In an objective lens driving device, a movable member shiftable along and rotatable around a vertical shaft is provided for supporting the objective lens to be movable therewith vertically and horizontally. An electromagnetic driving means is provided for driving the movable member as desired. A damper member formed into an annular configuration symmetric around a central axis of a bearing portion provided on the movable member is provided between the movable member and a stationary portion of the device for damping and positioning the movable member for maintaining the objective lens to its neutral position.
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申请公布号 |
US4679903(A) |
申请公布日期 |
1987.07.14 |
申请号 |
US19840687002 |
申请日期 |
1984.12.26 |
申请人 |
KABUSHIKI KAISHA TOSHIBA |
发明人 |
KASAHARA, AKIHIRO;GOTO, KENYA;YAMADA, AKIRA;WATANABE, SHOJI |
分类号 |
G11B7/09;G02B7/08;(IPC1-7):G02B7/04;F16F7/12;F16F15/12 |
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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