Invention Grant
- Patent Title: Vibration wave actuator
- Patent Title (中): 振动波动作机构
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Application No.: US14151012Application Date: 2014-01-09
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Publication No.: US09564837B2Publication Date: 2017-02-07
- Inventor: Yuki Oda , Nobuyuki Kojima
- Applicant: CANON KABUSHIKI KAISHA
- Applicant Address: JP Tokyo
- Assignee: Canon Kabushiki Kaisha
- Current Assignee: Canon Kabushiki Kaisha
- Current Assignee Address: JP Tokyo
- Agency: Fitzpatrick, Cella, Harper & Scinto
- Priority: JP2010-109022 20100511; JP2010-148513 20100630
- Main IPC: H02N2/04
- IPC: H02N2/04 ; H02N2/00 ; H02N2/02 ; H04N5/232 ; G02B27/64

Abstract:
A vibration wave actuator includes a vibrator, a driven element, and a magnet. The vibrator has at least an electro-mechanical energy conversion element and an elastic body to which the electro-mechanical energy conversion element is joined, the elastic body including a contact portion. The driven element is in pressure contact with the contact portion of the vibrator, and includes a magnetic substance. The magnet is arranged such that the vibrator is placed between the driven element and the magnet.
Public/Granted literature
- US20140125200A1 VIBRATION WAVE ACTUATOR Public/Granted day:2014-05-08
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