Title:
VIBRATION ACTUATOR AND LENS BARREL
Document Type and Number:
WIPO Patent Application WO/2013/129573
Kind Code:
A1
Abstract:
Provided is a vibration actuator and a lens barrel for which the thickness can be reduced. The vibration actuator (10) according to the present invention is a vibration actuator (10, 20) equipped with a stator, which has an annular elastic body (11a) and an electromechanical conversion element (12) that generates traveling waves in the elastic body, and a moving element, which makes contact with the elastic body and is moved relative to the stator by the traveling waves generated in the elastic body, said vibration actuator being characterized in that the contact surface (11c) of the elastic body with respect to the moving element is provided on the side surface in the radial direction.
Inventors:
HINO MITSUTERU (JP)
SATO TAKAHIRO (JP)
NISHIHARA SHINJI (JP)
SATO TAKAHIRO (JP)
NISHIHARA SHINJI (JP)
Application Number:
PCT/JP2013/055412
Publication Date:
September 06, 2013
Filing Date:
February 28, 2013
Export Citation:
Assignee:
NIKON CORP (JP)
International Classes:
H02N2/00; G02B7/04
Foreign References:
| JPS6389080A | 1988-04-20 | |||
| JP2006101593A | 2006-04-13 | |||
| JPH04101680A | 1992-04-03 | |||
| JPS62225182A | 1987-10-03 | |||
| JP2010226854A | 2010-10-07 |
Attorney, Agent or Firm:
KAMATA, Hisao (JP)
Hisao Kamata (JP)
Hisao Kamata (JP)
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Claims: