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公开(公告)号：US20230003997A1
公开(公告)日：2023-01-05
申请号：US17939669
申请日：2022-09-07
发明人： Kensuke MIHARA , Ryouichi TAKAYAMA , Kazuki KOMAKI
IPC分类号： G02B26/08
摘要： An optical reflector element includes: a first oscillator and a second oscillator for oscillating a reflector and disposed with the reflector being interposed therebetween along a first axis; and a third oscillator for oscillating the first oscillator and the second oscillator. The third oscillator includes: a first assister that causes the support of the first oscillator and the support of the second oscillator to operate, by connecting the support of the first oscillator and the support of the second oscillator to one base included in a pair of bases disposed with the first axis being interposed therebetween; and a second assister that causes the support of the first oscillator and the support of the second oscillator to operate, by connecting the support of the first oscillator and the support of the second oscillator to an other base included in the pair of bases.
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公开(公告)号：US20220373786A1
公开(公告)日：2022-11-24
申请号：US17882304
申请日：2022-08-05
发明人： Kensuke MIHARA , Kazuki KOMAKI , Ryouichi TAKAYAMA
IPC分类号： G02B26/08
摘要： An optical reflector element includes: a pair of vibrator groups each of which includes tuning fork vibrators that are coupled together such that vibration centers of the tuning fork vibrators align on an imaginary rotational axis; a reflective body interposed between the pair of vibrator groups; a pair of supports that couple the pair of vibrator groups and the reflective body together; and a base to which the pair of vibrator groups are coupled in a manner that allows the pair of vibrator groups to vibrate.
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公开(公告)号：US20240317576A1
公开(公告)日：2024-09-26
申请号：US18734302
申请日：2024-06-05
发明人： Kensuke MIHARA , Ryouichi TAKAYAMA
CPC分类号： B81B3/0072 , G02B26/105 , H10N30/704 , B81B2201/042 , B81B2203/0154 , B81B2203/058
摘要： An optical reflective device includes: a movable part configured to be rotated about a rotation axis; a reflection surface located on the movable part; a frame part connected to the movable part at two positions symmetrical about the rotation axis; torsion part extending along the rotation axis; a connection part connecting one end of the torsion part to the frame part; a drive part connected to another end of the torsion part and configured to rotate the torsion part about the rotation axis; and a fixation part supporting the drive part, the connection part has higher rigidity than the torsion part, at least one pair of joint surfaces are formed at a boundary between the torsion part and the connection part, and the one pair of joint surfaces are symmetrical about the rotation axis and each have an acute angle on the torsion part side with the rotation axis.
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公开(公告)号：US20240032432A1
公开(公告)日：2024-01-25
申请号：US18374579
申请日：2023-09-28
IPC分类号： H10N30/87 , H02N2/10 , H02N2/00 , H10N30/853 , H10N30/082 , H10N30/06
CPC分类号： H10N30/87 , H02N2/108 , H02N2/22 , H10N30/8548 , H10N30/082 , H10N30/06 , G02B26/0858
摘要： A drive element includes: a fixing part; a drive part placed on a lateral side of the fixing part and coupled to the fixing part; and a movable part configured to be driven by the drive part. A lower electrode, a piezoelectric layer, and an upper electrode are formed in order in an upper surface region of the fixing part and the drive part, and in a wiring region on the fixing part side of the upper surface region, a low dielectric layer containing at least one element forming the piezoelectric layer is formed on an upper surface of the piezoelectric layer.
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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
CPC分类号： B81B3/0021 , G02B26/0858 , G02B26/105 , B81B2201/042 , B81B2203/058 , B81B2203/019
摘要： 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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公开(公告)号：US20230018624A1
公开(公告)日：2023-01-19
申请号：US17945760
申请日：2022-09-15
发明人： Kazuki KOMAKI , Ryouichi TAKAYAMA , Kensuke MIHARA
摘要： An actuator that includes: a first driving body that includes a first piezoelectric material that extends in a first axis direction; a second driving body that includes a second piezoelectric material shorter than the first piezoelectric material in the first axis direction; and a base that holds the first driving body and the second driving body at proximal end portions of the first driving body and the second driving body in the first axis direction. The first driving body and the second driving body are aligned and coupled together in a polarization axis direction in a state in which a polarization axis of the first piezoelectric material and a polarization axis of the second piezoelectric material correspond with each other. A length of the second piezoelectric material in a second axis direction is greater than a length of the first piezoelectric material in the second axis direction.
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公开(公告)号：US20230367113A1
公开(公告)日：2023-11-16
申请号：US18226629
申请日：2023-07-26
发明人： Kensuke MIHARA , Ryouichi TAKAYAMA
CPC分类号： G02B26/10 , G02B26/0858
摘要： A drive element includes: a movable part; a drive part configured to rotate the movable part about a rotation axis; and a connection part connecting the drive part to a fixing part. The movable part, the drive part, and the fixing part are aligned along the rotation axis. The connection part is connected to the fixing part via at least one pair of joint surfaces that are not orthogonal to the rotation axis and that are symmetrical with respect to the rotation axis.
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公开(公告)号：US20220413281A1
公开(公告)日：2022-12-29
申请号：US17903655
申请日：2022-09-06
发明人： Kensuke MIHARA , Ryouichi TAKAYAMA
IPC分类号： G02B26/08
摘要： A light control system includes an optical reflector element and a control device. The optical reflector element includes a reflector, and a first oscillator and a second oscillator that are disposed with the reflector being interposed therebetween. When the control device is to oscillate a first oscillator and a second oscillator to cause the first and second oscillators to rotate in the same direction around a first axis, the control device: oscillates a first driver and a second driver of the first oscillator to cause each of the first and second drivers to have a first portion and a second portion that oscillate in opposite directions in the thickness direction; and oscillates a first driver and a second driver of the second oscillator to cause each of the first and second drivers to have a third portion and a fourth portion that oscillate in opposite directions in the thickness direction.
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