公开(公告)号：US20190049719A1

公开(公告)日：2019-02-14

申请号：US16154772

申请日：2018-10-09

Applicant: OLYMPUS CORPORATION

Inventor： Hiroshi TSURUTA ,  Yasuaki KASAI ,  Hirokazu YOKOTA ,  Takashi YASUMI

IPC: G02B26/10 ,  G02B23/24 ,  H01L41/09

Abstract: An optical fiber scanner including: an optical fiber configured to emit, from a distal end thereof, illumination light guided from a light source; and at least three flat-plate-shaped piezoelectric elements that are disposed at positions spaced apart from the distal end that are closer to a proximal end of the optical fiber in the longitudinal axis direction and configured to vibrate the distal end of the optical fiber in a direction intersecting the longitudinal axis, wherein each of the piezoelectric elements has chamfered sections on both widthwise ends along at least a portion thereof in a longitudinal direction, and the piezoelectric elements adjacent in a circumferential direction are assembled into a tubular shape that surrounds the outer circumferential surface of the optical fiber in a close contact manner in a state where the chamfered sections are brought into close contact with one another.

公开(公告)号：US20170238792A1

公开(公告)日：2017-08-24

申请号：US15588931

申请日：2017-05-08

Applicant: OLYMPUS CORPORATION

Inventor： Hirokazu YOKOTA ,  Yasuaki KASAI ,  Hiroshi TSURUTA

IPC: A61B1/07

CPC classification number: A61B1/07 ,  A61B1/00165 ,  A61B1/00188

Abstract: Provided is an optical fiber scanner including: an illumination optical fiber that optically guides illumination light and outputs the light from a distal end thereof; an elastic section that engages with a base side of the illumination optical fiber relative to the distal end thereof and that is formed of an elastic material; piezoelectric elements fixed to a side surface of the elastic section, each piezoelectric element being polarized in a radial direction of the illumination optical fiber and receiving an alternating-current voltage in a polarization direction so as to cause the illumination optical fiber to vibrate via the elastic section; and a stationary section that has an engagement hole engaging with the elastic section at a position away from the piezoelectric elements toward the base side and that supports the illumination optical fiber in a cantilevered manner via the elastic section engaged with the engagement hole.

公开(公告)号：US20170075107A1

公开(公告)日：2017-03-16

申请号：US15360388

申请日：2016-11-23

Applicant: OLYMPUS CORPORATION

Inventor： Kazutoshi KUMAGAl ,  Yasuaki KASAI ,  Hiroshi TSURUTA ,  Yoshiro OKAZAKI ,  Hirokazu YOKOTA

IPC: G02B26/10 ,  G01M11/00 ,  G02B23/24

CPC classification number: G02B26/103 ,  A61B1/00096 ,  A61B1/00133 ,  A61B1/00172 ,  A61B1/07 ,  G01M11/088 ,  G01M11/30 ,  G02B23/2469 ,  G02B23/2476

Abstract: An optical fiber scanner including: an optical fiber that guides light produced by a light source; an actuator that is fixed at an intermediate position of the optical fiber in the long-axis direction and that displaces a distal end of the optical fiber through a bending vibration; and an electrically conductive detection wire member that extends in a state in which it is attached to the outer periphery of the optical fiber at least between the actuator and the distal end of the optical fiber, over a predetermined range in the long-axis direction.

Abstract translation: 一种光纤扫描器，包括：引导由光源产生的光的光纤; 固定在所述光纤的长轴方向的中间位置并通过弯曲振动使所述光纤的前端位移的致动器; 以及导电检测线构件，其在至少在所述致动器和所述光纤的远端之间的长度方向上的规定范围内至少在所述光纤的外周附着的状态下延伸。

公开(公告)号：US20160377857A1

公开(公告)日：2016-12-29

申请号：US15199254

申请日：2016-06-30

Applicant: OLYMPUS CORPORATION

Inventor： Hiroshi TSURUTA ,  Yasuaki KASAI ,  Yoshiro OKAZAKI ,  Hirokazu YOKOTA ,  Kazutoshi KUMAGAI

IPC: G02B23/24 ,  G02B26/10

CPC classification number: G02B23/2469 ,  A61B1/00096 ,  A61B1/00172 ,  A61B1/07 ,  G02B23/2484 ,  G02B23/26 ,  G02B26/103

Abstract: This optical fiber scanner has an elongated optical fiber, a vibration transmission member which has a column-like shape and has a penetrating hole through which the optical fiber penetrates, and a piezoelectric element provided on an outer surface of the vibration transmission member, wherein the penetrating hole is a fitted hole which is formed from a proximal end of the vibration transmission member to a middle of the vibration transmission member and the optical fiber is fitted, and the penetrating hole is an accommodation hole which is formed from the middle to a distal end of the vibration transmission member, which has a large inner diameter than an outer diameter of the optical fiber, and which accommodates a distal end portion of the optical fiber with a gap between the optical fiber and the accommodation hole.

Abstract translation: 该光纤扫描器具有细长的光纤，具有柱状形状并且具有穿透光纤的穿透孔的振动传递部件和设置在振动传递部件的外表面上的压电元件，其中， 贯通孔是从振动传递部件的基端部到振动传递部件的中部形成的嵌合孔，并且光纤嵌合，并且该贯通孔是从中部到远端形成的容纳孔 所述振动传递部件的端部具有比所述光纤的外径大的内径，并且在所述光纤与所述容纳孔之间具有间隙地容纳所述光纤的前端部。