Invention Grant
US08441741B2 Image pickup apparatus that drives plural lens units using motors different from each other and drive control method of lens
有权
使用彼此不同的电动机驱动多个透镜单元的图像拾取装置以及透镜的驱动控制方法
- Patent Title: Image pickup apparatus that drives plural lens units using motors different from each other and drive control method of lens
- Patent Title (中): 使用彼此不同的电动机驱动多个透镜单元的图像拾取装置以及透镜的驱动控制方法
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Application No.: US13193164Application Date: 2011-07-28
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Publication No.: US08441741B2Publication Date: 2013-05-14
- Inventor: Hisao Yagi
- Applicant: Hisao Yagi
- Applicant Address: JP Tokyo
- Assignee: Canon Kabushiki Kaisha
- Current Assignee: Canon Kabushiki Kaisha
- Current Assignee Address: JP Tokyo
- Agency: Cowan, Liebowitz & Latman, P.C.
- Priority: JP2010-176912 20100806
- Main IPC: G02B15/14
- IPC: G02B15/14 ; G02B7/02
Abstract:
An image pickup apparatus includes a first drive unit, a first lens unit configured to be driven by the first drive unit to perform a magnification-varying operation, a second drive unit, a second lens unit configured to be driven by the second drive unit, and a controller configured to control the first drive unit and the second drive unit so as to drive the second lens unit with reference to a position of the first lens unit in performing the magnification-varying operation. The controller controls the second lens unit so as to move only in a first direction in performing the magnification-varying operation.
Public/Granted literature
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