公开(公告)号：US10549981B2

公开(公告)日：2020-02-04

申请号：US15316549

申请日：2015-06-10

Applicant: HAMAMATSU PHOTONICS K.K.

Inventor： Sadaharu Takimoto ,  Shinya Iwashina ,  Masakuni Kimoto ,  Yuki Morinaga

IPC: G02B26/08 ,  B81B3/00 ,  G02B26/10 ,  B81C3/00 ,  G02B7/182

Abstract: A mirror drive device includes a support part, a movable part, a permanent magnet forming a magnetic field in the periphery of the movable part, and a circuit board disposed between the support part and the permanent magnet in a facing direction of a pair of principal surfaces of the movable part so as to cause the movable part to be positioned at an inside of the circuit board when viewed in the facing direction. The movable part includes a mirror disposition portion, a mirror disposed and a drive coil so as to face the permanent magnet. The support part includes a base portion connected to a connection member and a reinforcing portion extending from the base portion toward a side away from the permanent magnet and the circuit board. The drive coil is connected to electrodes by lead-out conductors.

公开(公告)号：US09766448B2

公开(公告)日：2017-09-19

申请号：US14908627

申请日：2013-12-12

Applicant: HAMAMATSU PHOTONICS K.K.

Inventor： Sadaharu Takimoto ,  Masakuni Kimoto ,  Norihide Adachi

IPC: G02B26/08 ,  B81B3/00

CPC classification number: G02B26/085 ,  B81B3/0021 ,  B81B2201/042 ,  B81B2207/07

Abstract: A mirror drive device is provided as one capable of efficiently gaining a driving force. The mirror drive device 1 has a fixed frame 5; a movable portion 7 supported so as to be swingable relative to the fixed frame 5, through torsion bars 10a, 10b extending on an identical straight line, and being of a circular shape; a mirror 9 arranged on a principal surface 7a of the movable portion 7; and a permanent magnet 3 forming a magnetic field around the movable portion 7; the movable portion 7 has a drive coil 12 arranged below the mirror 9; the drive coil 12 is of a 2n-sided polygon shape (where n is an integer of 3 or more) when viewed from a direction orthogonal to the principal surface 7a, at least one side of which is orthogonal to a direction of the magnetic field F.

公开(公告)号：US10394017B2

公开(公告)日：2019-08-27

申请号：US15634296

申请日：2017-06-27

Applicant: HAMAMATSU PHOTONICS K.K.

Inventor： Sadaharu Takimoto ,  Masakuni Kimoto ,  Norihide Adachi

IPC: G02B26/08 ,  H02K33/18 ,  B81B3/00 ,  G02B26/10

Abstract: An actuator device includes a support portion; a first movable portion; a first torsion bar portion coupling the first movable portion to the support portion to be swingable around a first swing axis; and a wiring disposed on the first torsion bar portion. The torsion bar portion is of a meandering shape including a plurality of straight sections extending in a first direction along the first swing axis and juxtaposed in a second direction intersecting with the first direction, and a plurality of turnover sections alternately coupling two ends of the straight sections. The plurality of turnover sections have a curved shape. The wiring includes wiring sections embedded in grooves formed in the turnover sections.

公开(公告)号：US09729038B2

公开(公告)日：2017-08-08

申请号：US14908173

申请日：2013-12-12

Applicant: HAMAMATSU PHOTONICS K.K.

Inventor： Sadaharu Takimoto ,  Masakuni Kimoto ,  Norihide Adachi

IPC: G02B26/08 ,  H02K33/18 ,  B81B3/00

CPC classification number: G02B26/085 ,  B81B3/0045 ,  B81B2201/042 ,  B81B2203/0154 ,  G02B26/0816 ,  G02B26/0858 ,  G02B26/101 ,  H02K33/18

Abstract: A torsion bar portion is of a meandering shape including a plurality of straight sections and a plurality of turnover sections. The plurality of straight sections extends in a first direction along a swing axis and is juxtaposed in a second direction intersecting with the first direction. The plurality of turnover sections alternately couples two ends of the straight sections. Wiring is disposed on the torsion bar portion. The wiring includes first wiring sections and second wiring sections. The first wiring sections include damascene wiring sections that are disposed so as to be embedded in grooves formed in the turnover sections and that are made of a first metal material including Cu. The second wiring sections are disposed on the straight sections and are made of a second metal material more resistant to plastic deformation than the first metal material.