
US Patent Application No: 2012/0087,024
Number of patents in Portfolio can not be more than 2000
PIEZOELECTRIC ACTUATOR, LENS-BARREL, AND CAMERA
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Apr 12, 2012
Publication date -
Jun 15, 2010
filing date -
13/378,168
serial no -
Published
status
Importance
Abstract
A piezoelectric actuator includes: a first piezoelectric device between a base member and a moving member, and that is capable of being expanded and contracted in a direction in which the first piezoelectric device intersects with a first face that opposes the moving member of the base member; a second piezoelectric device between the first piezoelectric device and the moving member, and that is capable of being expanded and contracted in a direction different from the intersecting direction; a transfer member between the first piezoelectric device and the moving member that includes a through hole piercing through in the intersecting direction, receiving amounts of expansion and contraction of the first piezoelectric device and the second piezoelectric device to transfer a driving force to the moving member; and a supporting member that pierces through the through hole, and that can support the moving member.
First Claim
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