发明授权
- 专利标题: Lens driving device, control method, and lens system
- 专利标题(中): 镜头驱动装置,控制方法和镜头系统
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申请号: US13326784申请日: 2011-12-15
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公开(公告)号: US08611737B2公开(公告)日: 2013-12-17
- 发明人: Toshihiko Tomosada , Daisuke Ishikawa
- 申请人: Toshihiko Tomosada , Daisuke Ishikawa
- 申请人地址: JP Tokyo
- 专利权人: Canon Kabushiki Kaisha
- 当前专利权人: Canon Kabushiki Kaisha
- 当前专利权人地址: JP Tokyo
- 代理机构: Canon U.S.A., Inc. IP Division
- 优先权: JP2010-286525 20101222; JP2010-287085 20101224
- 主分类号: G03B13/36
- IPC分类号: G03B13/36
摘要:
A lens driving device includes a control unit configured to control movement of a first lens to perform zooming operation and a second lens to perform focus adjustment based on information of a position of the first lens and a position of the second lens stored for each object distance, and when the first lens is on a telephoto side of a predetermined position, the control unit limits movement of the second lens to a position corresponding to a second object distance closer than the first object distance, and if a predetermined condition is satisfied after the second lens has reached a predetermined region including the position corresponding to the first object distance, the control unit permits the movement of the second lens to the position corresponding to the second object distance.
公开/授权文献
- US20120163785A1 LENS DRIVING DEVICE, CONTROL METHOD, AND LENS SYSTEM 公开/授权日:2012-06-28
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