发明授权
US08803986B2 Vibration actuator, and lens barrel and camera provided with the vibration actuator
有权
振动执行机构，以及配有振动执行机构的镜筒和相机
- 专利标题： Vibration actuator, and lens barrel and camera provided with the vibration actuator
- 专利标题（中）： 振动执行机构，以及配有振动执行机构的镜筒和相机
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申请号： US13000063申请日： 2009-06-22
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公开(公告)号： US08803986B2公开(公告)日： 2014-08-12
- 发明人: Takahiro Sato
- 申请人： Takahiro Sato
- 申请人地址： JP Tokyo
- 专利权人： Nikon Corporation
- 当前专利权人： Nikon Corporation
- 当前专利权人地址： JP Tokyo
- 代理机构： Oliff PLC
- 优先权： JP2008-163080 20080623
- 国际申请： PCT/JP2009/061310 WO 20090622
- 国际公布： WO2009/157405 WO 20091230
- 主分类号： H04N5/228
- IPC分类号： H04N5/228
摘要：
Provided is a vibration actuator having stable drive characteristics, and a lens barrel and a camera which are provided with such vibration actuator. The vibration actuator of the present invention is provided with: a relatively moving member, which is brought into pressurized contact with a vibrating member, and moves relative to the vibrating member by vibration of the vibrating member; a pressure member which brings the vibrating member and the relatively moving member into pressurized contact with each other; and a magnetic force generating section which adjusts the pressurizing force of the pressure member by a magnetic force.
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