Invention Grant
- Patent Title: Vibration wave motor and optical device
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Application No.: US15934836Application Date: 2018-03-23
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Publication No.: US11201570B2Publication Date: 2021-12-14
- Inventor: Hiroki Ito , Yasufumi Yamamoto
- Applicant: CANON KABUSHIKI KAISHA
- Applicant Address: JP Tokyo
- Assignee: CANON KABUSHIKI KAISHA
- Current Assignee: CANON KABUSHIKI KAISHA
- Current Assignee Address: JP Tokyo
- Agency: Canon U.S.A., Inc., IP Division
- Priority: JPJP2017-063102 20170328,JPJP2018-006553 20180118
- Main IPC: H02N2/14
- IPC: H02N2/14 ; H02N2/02 ; H02N2/00 ; H02N2/04 ; H02N2/16

Abstract:
A vibration wave motor comprises a vibrator including a piezoelectric element and a vibrating body, a friction member including a first surface configured to come into contact with the vibrator, and a second surface, which is a surface on the opposite side of the first surface, the vibrator and the friction member moving relative to each other in a driving direction by a vibration generated by the vibrator, a supporting member configured to support the friction member on the second surface side; and a pressure member configured to bring the vibrator and the friction member into pressure contact with each other. A fixing portion configured to fix the friction member to the supporting member is provided in the friction member. The vibrator can move to a position where at least part of the vibrator and the fixing portion overlap each other in a pressure direction of the pressure member.
Public/Granted literature
- US20180287516A1 VIBRATION WAVE MOTOR AND OPTICAL DEVICE Public/Granted day:2018-10-04
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