Title:
OSCILLATION ACTUATOR, LENS BARREL, CAMERA SYSTEM AND OSCILLATOR
Document Type and Number:
WIPO Patent Application WO/2007/105632
Kind Code:
A1
Abstract:
An oscillation actuator by which stable drive can be obtained, a lens barrel,
a camera system and an oscillator are provided. In first oscillation mode and
second oscillation mode, oscillators (11, 11A, 11B) of the oscillation actuator
can oscillate. The number of resonance frequency in the second oscillation
mode, which is different from the first oscillation mode used for driving a relative
motion member (15), is prevented from being same as the frequency of the higher
harmonic of a driving signal.
Inventors:
ASHIZAWA TAKATOSHI (JP)
Application Number:
PCT/JP2007/054677
Publication Date:
September 20, 2007
Filing Date:
March 09, 2007
Export Citation:
Assignee:
NIKON CORP (JP)
ASHIZAWA TAKATOSHI (JP)
ASHIZAWA TAKATOSHI (JP)
International Classes:
H02N2/00
Foreign References:
| JP2000278970A | 2000-10-06 | |||
| JP2004187465A | 2004-07-02 | |||
| JPH09163767A | 1997-06-20 |
Other References:
See also references of EP 1998433A4
Attorney, Agent or Firm:
KAMATA, Hisao (25-9 Higashi Ikebukuro 1-chome, Toshima-k, Tokyo 13, JP)
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