アクチュエータ
- 专利权人:
- オリンパスメディカルシステムズ株式会社
- 发明人:
- 岩▲崎▼ 誠二
- 申请号：
- JP2007252430
- 公开号：
- JP4855364B2
- 申请日:
- 2007.09.27
- 申请国别(地区):
- JP
- 年份:
- 2012
- 代理人:
- 摘要：
PROBLEM TO BE SOLVED: To provide an actuator which has a configuration in which moving members are moved by using an SMA (shape memory alloy) wire and the positions of the moving members are defined by using a stopper portion, is capable of preventing response speed and durability from lowering and is capable of realizing reduction in size in a diametric direction of the moving members.
SOLUTION: The actuator has a magnet 8 moved together with a moving lens frame 6, an SMA wire 14 capable of extending and contracting in a moving direction I of the moving lens frame 6 depending on whether an electric current is applied or not, a fixing member 9 made of a magnetic material attached to a tip end of the SMA wire 14, a pressing spring 16 which energizes the fixing member 9 toward the magnet 8 along the moving direction I, and a stopper member 70 and a stopper portion 32p which limits the movement of the magnet 8 along the moving direction I at a first position and a second position.
COPYRIGHT: (C)2009,JPO&INPIT
- 来源网站：
- 中国工程科技知识中心
