Invention Grant
- Patent Title: Vibration type driving apparatus and driving circuit thereof
- Patent Title (中): 振动式驱动装置及其驱动电路
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Application No.: US13851478Application Date: 2013-03-27
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Publication No.: US09362850B2Publication Date: 2016-06-07
- Inventor: Kiyoshi Nitto
- 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: JP2012-084292 20120402
- Main IPC: H02N2/00
- IPC: H02N2/00 ; H02N2/10

Abstract:
A vibration type driving apparatus includes a vibrating body having an electrical-mechanical energy converting element, a first elastic body and a second elastic body; and a moving body that moves relative to the vibrating body. The vibrating body has a third elastic body that includes a sliding surface. A resonance frequency in a mode where the non-sliding surface side of the vibrating body in the axial direction mainly vibrates with the third elastic body is adapted so as to fall out of a frequency range between a multiple of a maximum frequency of a driving signal applied to the electrical-mechanical energy converting element, and a multiple of a minimum frequency of the driving signal.
Public/Granted literature
- US20130257225A1 VIBRATION TYPE DRIVING APPARATUS AND DRIVING CIRCUIT THEREOF Public/Granted day:2013-10-03
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