- Patent Title: Linear ultrasonic motor and optical apparatus including the same
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Application No.: US14219185Application Date: 2014-03-19
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Publication No.: US09660556B2Publication Date: 2017-05-23
- Inventor: Harushige Yamamoto
- 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: JP2013-058769 20130321
- Main IPC: H02N2/02
- IPC: H02N2/02 ; H02N2/00 ; G02B7/10

Abstract:
A small linear ultrasonic motor includes: a vibration element generating ultrasonic vibrations by applying high frequency drive voltage; a slider against which vibration element is pressed and which is relatively moved by the ultrasonic vibrations; a vibration element supporting member retaining the vibration element and relatively moving with respect to the slider; a guide portion guiding a moving direction of the relative movement of the vibration element supporting member; and a pressurizing portion pressing the vibration element against the slider, wherein the guide portion is arranged sandwiching a position at which the vibration element is pressed against the slider, in a plane that includes the moving direction and intersects with a pressurizing direction of a pressurizing force exerted by the pressurizing portion, and at least each part of the pressurizing portion and the guide portion is disposed at a position equidistant from the plane in the pressurizing direction.
Public/Granted literature
- US20140285066A1 LINEAR ULTRASONIC MOTOR AND OPTICAL APPARATUS INCLUDING THE SAME Public/Granted day:2014-09-25
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