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公开(公告)号：US20180153382A1
公开(公告)日：2018-06-07
申请号：US15877428
申请日：2018-01-23
Applicant: OLYMPUS CORPORATION
Inventor： Masanori OGATA
CPC classification number: A61B1/00172 , A61B1/07 , G02B23/26 , G02B26/103
Abstract: An optical fiber scanning apparatus includes a tubular housing, an optical fiber disposed along a Z axis, which is a center axis of the housing, provided with a magnet, and configured to emit light from a free end thereof, an X-axis coil including at least one spiral coil configured to apply a magnetic field in an X-axis direction orthogonal to the Z axis, a Y-axis coil including at least one spiral coil configured to apply a magnetic field in a Y-axis direction orthogonal to the Z axis and the X axis, and a magnetic-field inducing section including an inner magnetic-field inducing section including a core disposed in a center portion on an inside, which is the center axis side of the spiral coils, and an outer magnetic-field inducing section disposed on an outside opposite to the inside.
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公开(公告)号：US20190317316A1
公开(公告)日：2019-10-17
申请号：US16451785
申请日：2019-06-25
Applicant: OLYMPUS CORPORATION
Inventor： Masanori OGATA
Abstract: An optical fiber scanning apparatus includes an optical fiber whose fixed end is fixed and a free end for emitting illumination light of which vibrates in a first direction (X-axis direction) and a second direction (Y-axis direction), a ferrule including a through hole through which the optical fiber is inserted and including a pair of first fixing sections and a pair of second fixing sections which respectively fix the fixed end of the optical fiber, and piezoelectric elements or a magnet configured to vibrate the optical fiber, in which the optical fiber is sandwiched between the pair of first fixing sections and fixed in the first direction, and is sandwiched between the pair of second fixing sections and fixed in the second direction, and the pair of first fixing sections and the pair of second fixing sections differ in a shape of an abutment portion abutting on the optical fiber.
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Patent Agency Ranking
公开(公告)号：US20210141216A1
公开(公告)日：2021-05-13
申请号：US17153537
申请日：2021-01-20
Applicant: OLYMPUS CORPORATION
Inventor： Masanori OGATA
Abstract: An endoscope having an optical fiber scanning apparatus that includes an optical fiber a fixed end of which is fixed and a free end for emitting illumination light of which vibrates in a first direction and a second direction, a ferrule which includes a through hole including an opening on a distal end surface and fixes the optical fiber inserted through the through hole, a pair of first fixing members which sandwich and fix the optical fiber in the first direction, a pair of second fixing members which sandwich and fix the optical fiber in the second direction, and piezoelectric elements or a magnet configured to vibrate the optical fiber, in which a Young's modulus of the pair of first fixing members is smaller than a Young's modulus of the pair of second fixing members.
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公开(公告)号：US20180353056A1
公开(公告)日：2018-12-13
申请号：US16045915
申请日：2018-07-26
Applicant: OLYMPUS CORPORATION
Inventor： Hiroshi TOSAKA , Masanori OGATA
IPC: A61B1/00
CPC classification number: A61B1/00172 , A61B1/00 , A61B1/00006 , A61B1/00096 , A61B1/00165 , G02B26/10
Abstract: An optical fiber scanning system includes: an optical fiber with a magnet; four drive coils configured to apply a drive magnetic field generated using a drive power signal to the magnet; four detection coils configured to output a detection signal in response to variation of a magnetic field; a controller configured to perform feedback control of the drive power signal; a signal output circuit configured to output a drive signal; a voltage-current conversion circuit configured to convert the drive signal to the drive power signal; and a correction circuit configured to output a magnet magnetic field signal by removing the drive magnetic field signal from the detection signal, and the controller controls the signal output circuit based on the magnet magnetic field signal.
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公开(公告)号：US20190310466A1
公开(公告)日：2019-10-10
申请号：US16449866
申请日：2019-06-24
Applicant: OLYMPUS CORPORATION
Inventor： Masanori OGATA
Abstract: An optical fiber scanning apparatus includes an optical fiber a fixed end of which is fixed and a free end for emitting illumination light of which vibrates in a first direction and a second direction, a ferrule which includes a through hole including an opening on a distal end surface and fixes the optical fiber inserted through the through hole, a pair of first fixing members which sandwich and fix the optical fiber in the first direction, a pair of second fixing members which sandwich and fix the optical fiber in the second direction, and piezoelectric elements or a magnet configured to vibrate the optical fiber, in which a Young's modulus of the pair of first fixing members is smaller than a Young's modulus of the pair of second fixing members.
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公开(公告)号：US20180325362A1
公开(公告)日：2018-11-15
申请号：US16045970
申请日：2018-07-26
Applicant: OLYMPUS CORPORATION
Inventor： Hiroshi TOSAKA , Masanori OGATA
CPC classification number: A61B1/00172 , A61B1/00 , A61B1/00006 , A61B1/07 , G02B26/10
Abstract: An optical fiber scanning device includes a housing, an optical fiber configured to emit light, a magnet disposed on the optical fiber, four drive coils configured to drive the optical fiber by applying to the magnet a magnetic field generated by a received drive power signal, and four detection coils configured to output an induced electromotive force signal corresponding to variation of a magnetic field, wherein the drive power signal is controlled based on the induced electromotive force signal, and four coil assemblies each including any one of the drive coils and any one of the detection coils are disposed at rotationally symmetrical positions so as to interpose the optical fiber among the four coil assemblies.
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公开(公告)号：US20170042410A1
公开(公告)日：2017-02-16
申请号：US15337023
申请日：2016-10-28
Applicant: OLYMPUS CORPORATION
Inventor： Mamoru HASEGAWA , Masanori OGATA , Hiroyoshi YAJIMA
IPC: A61B1/00
CPC classification number: G02B26/103 , A61B1/00158 , A61B1/00165 , A61B1/00172 , H01F27/292 , H01F41/041
Abstract: An optical fiber scanning apparatus is the optical fiber scanning apparatus for which an optical fiber to which a permanent magnet is disposed and which is configured to emit illumination light from a distal end portion is arranged in a hollow portion of a magnetic field generation unit, the magnetic field generation unit is provided with four coil units each including a flexible substrate where a planar coil, a lead-out wiring layer of the planar coil and an external connection electrode pad are disposed, and an inside of the four coil units arranged in a square prism shape configures the hollow portion.
Abstract translation: 光纤扫描装置是在磁场产生部的中空部配置有配置有永久磁铁的光纤并且被配置为从远端部发射照明光的光纤扫描装置， 磁场产生单元设置有四个线圈单元，每个线圈单元包括柔性基板，其中布置有平面线圈，平面线圈的引出布线层和外部连接电极焊盘，以及布置在其中的四个线圈单元的内部 方形棱镜形状构成中空部分。
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