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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
Inventor： Kensuke MIHARA , Ryouichi TAKAYAMA
CPC classification number: B81B3/0072 , G02B26/105 , H10N30/704 , B81B2201/042 , B81B2203/0154 , B81B2203/058
Abstract: 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：US20250013035A1
公开(公告)日：2025-01-09
申请号：US18892660
申请日：2024-09-23
Inventor： Jun TAKIGAWA , Kensuke MIHARA
IPC: G02B26/08
Abstract: An optical reflective element includes: a movable part having a mirror formed therein; a fixation part supporting the movable part; a meander-type vibration plate placed between the movable part and the fixation part; a coupling beam coupling the vibration plate to the movable part; a drive part placed on the vibration plate and configured to rotate the movable part about a rotation axis; and a stopper placed adjacent to at least one of the vibration plate and the coupling beam in a direction parallel to the rotation axis and configured to restrict at least displacement of the vibration plate.
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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
Inventor： Kensuke MIHARA , Ryouichi TAKAYAMA , Kazuki KOMAKI
IPC: G02B26/08
Abstract: 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：US20230266580A1
公开(公告)日：2023-08-24
申请号：US18141173
申请日：2023-04-28
Inventor： Kensuke MIHARA
CPC classification number: G02B26/0858 , G02B26/105
Abstract: A piezoelectric driving element includes: a support; a plate-shaped movable part on which a rib is disposed; a pair of meander-type piezoelectric actuators each supported at one end thereof by the support; and a coupling part coupling another end of each of the pair of piezoelectric actuators and the movable part and having higher rigidity than the movable part.
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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
Inventor： Kensuke MIHARA , Kazuki KOMAKI , Ryouichi TAKAYAMA
IPC: G02B26/08
Abstract: 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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Patent Agency Ranking
公开(公告)号：US20230367113A1
公开(公告)日：2023-11-16
申请号：US18226629
申请日：2023-07-26
Inventor： Kensuke MIHARA , Ryouichi TAKAYAMA
CPC classification number: G02B26/10 , G02B26/0858
Abstract: 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
Inventor： Kensuke MIHARA , Ryouichi TAKAYAMA
IPC: G02B26/08
Abstract: 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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公开(公告)号：US20250164779A1
公开(公告)日：2025-05-22
申请号：US19029536
申请日：2025-01-17
Inventor： Kensuke MIHARA , Takami ISHIDA
IPC: G02B26/08
Abstract: A drive element includes: a movable part; a first support part extending along a rotation axis of the movable part and connected at one end thereof to the movable part; a pair of arm parts placed with the rotation axis located therebetween; a pair of coupling parts coupling the pair of arm parts to another end of the first support part; a second support part extending along the rotation axis and supporting the pair of coupling parts; a fixation part to which the second support part is connected; and drive parts configured to drive the arm parts, respectively. The second support part has higher rigidity than the first support part, and the pair of coupling parts are placed so as to be inclined toward the movable part side. An angle between each coupling part and the second support part is greater than 90° and equal to or less than 135°.
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公开(公告)号：US20230393386A1
公开(公告)日：2023-12-07
申请号：US18235708
申请日：2023-08-18
Inventor： Kensuke MIHARA
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 pair of drive parts. Both end portions of the pair of support parts are connected to the pair of drive parts, respectively, and gaps each having a predetermined length are provided between the pair of support parts and the pair of drive parts so as to extend in the alignment direction of the pair of drive parts.
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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
Inventor： Kazuki KOMAKI , Ryouichi TAKAYAMA , Kensuke MIHARA
Abstract: 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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