发明授权
- 专利标题: Projector and method of controlling the same
- 专利标题(中): 投影机及其控制方法
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申请号: US13078337申请日: 2011-04-01
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公开(公告)号: US08878478B2公开(公告)日: 2014-11-04
- 发明人: Shinichi Tsukagoshi
- 申请人: Shinichi Tsukagoshi
- 申请人地址: JP Tokyo
- 专利权人: Seiko Epson Corporation
- 当前专利权人: Seiko Epson Corporation
- 当前专利权人地址: JP Tokyo
- 代理机构: ALG Intellectual Property, LLC
- 优先权: JP2010-085863 20100402
- 主分类号: G05B19/29
- IPC分类号: G05B19/29 ; G03B21/14 ; G02B7/10
摘要:
A projector includes: a drive motor adapted to drive a lens unit; a control section adapted to control the drive motor; a storage section adapted to store a target position of the lens unit; and a position detector adapted to detect a present position of the lens unit, wherein if a deviation between the target position stored in the storage section and the present position detected by the position detector is equal to or larger than a predetermined value, the control section performs drive of the drive motor with feedforward control until the present position and the target position are coincident with each other, and performs drive control of the drive motor with a predetermined unit based on a deviation between a stop position by the feedforward control and the target position.
公开/授权文献
- US20110241593A1 PROJECTOR AND METHOD OF CONTROLLING THE SAME 公开/授权日:2011-10-06
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