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公开(公告)号：US20240045198A1
公开(公告)日：2024-02-08
申请号：US18381970
申请日：2023-10-19
Inventor： Kensuke Mihara
IPC: G02B26/08
CPC classification number: G02B26/0816
Abstract: A drive element includes: a pair of drive parts placed so as to be aligned in one direction; a movable part placed between the pair of drive parts; a pair of support parts placed such that the pair of drive parts and the movable part are interposed therebetween; a pair of connection parts connecting the pair of support parts to the movable part; and a fixing part connected to at least each of the pair of drive parts in an alignment direction of the drive parts. A resonance frequency of a drive body composed of the pair of drive parts and the pair of support parts and a resonance frequency of a movable body composed of the movable part and the pair of connection parts are substantially equal to each other.
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公开(公告)号：US20230356997A1
公开(公告)日：2023-11-09
申请号：US18223102
申请日：2023-07-18
Inventor： Ryouichi TAKAYAMA , Kazuki Komaki , Takami Ishida , Kensuke Mihara
CPC classification number: B81B3/0021 , G02B26/0858 , G02B26/105 , B81B2201/042 , B81B2203/058 , B81B2203/019
Abstract: A piezoelectric drive element includes: a movable part; a pair of piezoelectric drive parts each connected at one end portion thereof to the movable part and configured to rotate the movable part about at least a rotation axis; and a fixing part to which end portions of the piezoelectric drive parts are connected. The pair of piezoelectric drive parts are aligned in a direction along the rotation axis with the movable part located therebetween, a width of the movable part is narrower than a width of each of the pair of piezoelectric drive parts in a plan view, and the fixing part is placed in a gap region that is outside the movable part and that is located between the pair of piezoelectric drive parts in a plan view.
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