Title:
圧電駆動装置、撮像装置、および携帯端末装置
Document Type and Number:
Japanese Patent JP4898264
Kind Code:
B2
Abstract:
To provide a drive unit downsized and thinned, and also improved in shock resistance.
The drive unit 1 has: a piezoelectric element 3; a weight 2 which is fixed to one end in the direction of expansion and contraction of the piezoelectric element; and a drive member which is fixed to the other end of the piezoelectric element. The drive member and the piezoelectric element abut on each other, having a spatial overlap in the direction of expansion and contraction of the piezoelectric element. The center of gravity of the weight is positioned in the vicinity of a plane which includes an abutting face where the piezoelectric element and the drive member abut on each other.
COPYRIGHT: (C)2008,JPO&INPIT
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Inventors:
Koji Ukawa
Tatsuo Kobayashi
Hiroshi Nishizawa
Tatsuo Kobayashi
Hiroshi Nishizawa
Application Number:
JP2006107654A
Publication Date:
March 14, 2012
Filing Date:
April 10, 2006
Export Citation:
Assignee:
Panasonic Corporation
International Classes:
H02N2/00; G02B7/04; H01L41/09
Domestic Patent References:
| JP2006129625A | ||||
| JP3289373A | ||||
| JP2007104761A |
Attorney, Agent or Firm:
Shohei Oguri
Toshimitsu Ichikawa
Kimihide Hashimoto
Toshimitsu Ichikawa
Kimihide Hashimoto