发明授权
- 专利标题: Piezoelectric actuator and lens driving device
- 专利标题(中): 压电致动器和透镜驱动装置
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申请号: US12155125申请日: 2008-05-29
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公开(公告)号: US07764449B2公开(公告)日: 2010-07-27
- 发明人: Burhanettin Koc , Hyun Phill Ko
- 申请人: Burhanettin Koc , Hyun Phill Ko
- 申请人地址: KR Suwon
- 专利权人: Samsung Electro-Mechanics Co., Ltd.
- 当前专利权人: Samsung Electro-Mechanics Co., Ltd.
- 当前专利权人地址: KR Suwon
- 优先权: KR10-2007-0052088 20070529
- 主分类号: G02B7/02
- IPC分类号: G02B7/02 ; G02B15/14
摘要:
There are provided a piezoelectric actuator and a lens driving apparatus having the piezoelectric actuator. The lens driving device includes: a lens barrel having a lens hole where at least one lens is disposed, and having a tip friction member on an outer surface thereof; a base having a guiding part guiding the lens barrel to move along an optical axis direction; a piezoelectric actuator having a piezoelectric body disposed at an edge of the base to apply a driving force when a power is applied, the piezoelectric body having at least one friction member at one side thereof to be in contact with the tip friction member; and a preload member applying an elastic force for elastically supporting the piezoelectric actuator against the lens barrel to keep the tip friction member and the friction member in contact with each other.
公开/授权文献
- US20080297923A1 Piezoelectric actuator and lens driving device 公开/授权日:2008-12-04
信息查询
IPC分类:
G | 物理 |
G02 | 光学 |
G02B | 光学元件、系统或仪器 |
G02B7/00 | 光学元件的安装、调整装置或不漏光连接 |
G02B7/02 | .用于透镜 |