发明授权
US08269841B2 Optical element driving device, optical element barrel, and image pickup apparatus 失效
光学元件驱动装置,光学元件筒和图像拾取装置

  • 专利标题: Optical element driving device, optical element barrel, and image pickup apparatus
  • 专利标题(中): 光学元件驱动装置,光学元件筒和图像拾取装置
  • 申请号: US12923010
    申请日: 2010-08-30
  • 公开(公告)号: US08269841B2
    公开(公告)日: 2012-09-18
  • 发明人: Tomoya Takei
  • 申请人: Tomoya Takei
  • 申请人地址: JP Tokyo
  • 专利权人: Sony Corporation
  • 当前专利权人: Sony Corporation
  • 当前专利权人地址: JP Tokyo
  • 代理机构: Rader Fishman & Grauer, PLLC
  • 优先权: JP2009-248339 20091029
  • 主分类号: H04N5/228
  • IPC分类号: H04N5/228
Optical element driving device, optical element barrel, and image pickup apparatus
摘要:
An optical element driving device includes an optical element holder, first and second magnets, first and second magnetic bodies each having a cross section including a vertex and first and second legs forming an opening therebetween, first and second piezoelectric elements that move the optical element holder in directions perpendicular to each other by slidingly moving the first and second magnetic bodies by vibrating the first and second magnets, and first and second magnetic sensors that detect a position of the optical element holder, wherein the first and second piezoelectric elements are driven in a state in which the first and second magnets are coupled to the first and second legs from the opening side, wherein the first and second magnets are each magnetized in directions perpendicular to a magnetization line, and wherein the second magnetic sensor is disposed at a position that is not on the magnetization line.
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