Piezoelectric actuator, lens-barrel, and camera

Number of patents in Portfolio can not be more than 2000

United States of America Patent

PATENT NO 8773785
APP PUB NO 20120087024A1
SERIAL NO

13378168

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ATTORNEY / AGENT: (SPONSORED)

Importance

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Abstract

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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.

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First Claim

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Patent Owner(s)

Patent OwnerAddressTotal Patents
NIKON CORPORATIONTOKYO5012

International Classification(s)

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Kuwano, Kunihiro Kawasaki, JP 14 16

Cited Art Landscape

Patent Info (Count) # Cites Year
 
HANWHA TECHWIN CO., LTD. (1)
* 8049971 Lens driving unit and camera module comprising the same 4 2009
 
PARKER INTANGIBLES LLC (1)
* 6870305 Apparatus for moving a pair of opposing surfaces in response to an electrical activation 16 2004
* Cited By Examiner

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