公开(公告)号：US20170102537A1

公开(公告)日：2017-04-13

申请号：US15385154

申请日：2016-12-20

Applicant: OLYMPUS CORPORATION

Inventor： Masato FUJIWARA ,  Takeharu INNAMI

IPC: G02B26/10 ,  G02B23/24

CPC classification number: G02B26/103 ,  A61B1/00006 ,  A61B1/00172 ,  A61B1/07 ,  G02B23/2469 ,  G02B26/10 ,  H01L41/0913 ,  H02N2/00

Abstract: An optical scanning actuator (1) includes an optical fiber (2) having a tip (2a) supported to allow vibration and includes a piezoelectric element (4) that generates a driving force by expanding and contracting in the direction of the optical axis of the optical fiber (2), the driving force driving the tip (2a) of the optical fiber (2) in a direction perpendicular to the optical axis. The optical scanning actuator (1) has rotational asymmetry or two-fold rotational symmetry about the optical axis of the optical fiber (2), and the resonance direction of the tip (2a) of the optical fiber (2) and the direction of the driving force of the piezoelectric element (4) are substantially parallel.

公开(公告)号：US20170319055A1

公开(公告)日：2017-11-09

申请号：US15654772

申请日：2017-07-20

Applicant: OLYMPUS CORPORATION

Inventor： Takeharu INNAMI

IPC: A61B1/07 ,  G02B23/24 ,  A61B1/00 ,  A61B1/06

CPC classification number: A61B1/07 ,  A61B1/00172 ,  A61B1/06 ,  A61B1/0661 ,  G02B23/2446 ,  G02B23/2469

Abstract: An endoscopic illumination system includes at least two light sources, an illumination system, a multiplexer, at least two detectors, and a light source controller. The multiplexer includes at least two input ports and an emission port. The multiplexer can propagate light that is input from the input ports to the emission port separately or after multiplexing the light. The multiplexer can output a portion of light propagating between the input ports and the emission port. The detectors detect the light propagating between the input ports and the emission port in each wavelength band. The light source controller adjusts the amount of light emitted from the light sources. The amount of light emitted from each light source is thereby appropriately adjusted even when multiple light sources are turned on simultaneously.

公开(公告)号：US20160187647A1

公开(公告)日：2016-06-30

申请号：US15065969

申请日：2016-03-10

Applicant: OLYMPUS CORPORATION

Inventor： Masato FUJIWARA ,  Atsuyoshi SHIMAMOTO ,  Takeharu INNAMI ,  Junichi NISHIMURA

IPC: G02B26/10 ,  G02B23/24

CPC classification number: G02B26/103 ,  A61B1/00172 ,  A61B1/07 ,  G02B23/2423 ,  G02B23/2469 ,  G02B26/10 ,  G02B26/101

Abstract: An optical fiber is vibrated at an emitting end part by a scanning part, and light is irradiated from an emitting end face of the optical fiber onto an object to scan the object. The scanning part includes a pair of first direction coils facing each other in a first direction across the emitting end part, and a permanent magnet installed as penetrating the emitting end part. The permanent magnet is magnetized in the axial direction of the emitting end part. The scanning part drives, by supplying power to the first direction coils, the emitting end part to vibrate in the first direction in the second or higher-order resonance mode, forming nodes of the vibration within the permanent magnet. When in a state of non-vibration in the first direction, a relative distance between the permanent magnet and the first direction coils is smaller than that in other directions.

Abstract translation: 光纤通过扫描部在发光端部振动，并且将光从光纤的发射端面照射到物体上以扫描物体。 扫描部分包括一对沿着第一方向相对于发射端部彼此面对的第一方向线圈，以及安装成穿过发射端部的永磁体。 永磁体在发射端部的轴向上被磁化。 扫描部通过向第一方向线圈供电，通过向第一或第二谐振模式的第一方向驱动发射端部，从而形成永磁体内的振动的节点。 当处于第一方向的非振动状态时，永磁体和第一方向线圈之间的相对距离小于其它方向的相对距离。

公开(公告)号：US20170090181A1

公开(公告)日：2017-03-30

申请号：US15359025

申请日：2016-11-22

Applicant: OLYMPUS CORPORATION

Inventor： Takeharu INNAMI

IPC: G02B23/24 ,  G02B26/10 ,  H04N5/225

CPC classification number: G02B23/2469 ,  A61B1/00172 ,  A61B1/042 ,  A61B1/0669 ,  A61B1/07 ,  G02B23/26 ,  G02B26/103 ,  H04N5/2256 ,  H04N2005/2255

Abstract: Provided is an optical scanning endoscope apparatus, including: an illumination optical fiber which guides light from a light source and has a leading end part oscillatably supported; a piezoelectric substrate designed to vibrate the leading end part of the illumination optical fiber in the Y-direction; piezoelectric substrates designed to vibrate the leading end part of the illumination optical fiber in the X-direction; a piezoelectric substrate which drives the leading end part of the illumination optical fiber such as to at least partially cancel out vibration components in the Y-direction generated by the piezoelectric substrates; and an optical system which irradiates light emitted from the illumination optical fiber, toward an observation object; a photodetector which detects light obtained by the observation object irradiated with the light and converts the light thus detected into an electric signal; and an image processor which generates an image based on the electric signal output by the photodetector.

公开(公告)号：US20150338646A1

公开(公告)日：2015-11-26

申请号：US14812567

申请日：2015-07-29

Applicant: OLYMPUS CORPORATION

Inventor： Takeharu INNAMI

IPC: G02B26/10 ,  G02B23/26 ,  G02B6/44 ,  G02B23/24 ,  G02B6/02 ,  G02B6/036

CPC classification number: G02B26/103 ,  A61B1/00006 ,  A61B1/00057 ,  A61B1/00167 ,  A61B1/00172 ,  A61B1/07 ,  G02B6/02033 ,  G02B6/036 ,  G02B6/443 ,  G02B23/2469 ,  G02B23/26

Abstract: An optical scanning observation apparatus (10) has an optical fiber (19), a vibratory drive unit (14), and a controller (15). The optical fiber (19) has an oscillating part supported at one end in an oscillatable manner. The vibratory drive unit (14) vibrates the oscillating part, based on a drive signal. The controller (15) changes the frequency of the drive signal to be transmitted to the vibratory drive means (14).

Abstract translation: 光学扫描观察装置（10）具有光纤（19），振动驱动单元（14）和控制器（15）。 光纤（19）具有以可振荡的方式在一端支撑的振荡部分。 振动驱动单元（14）基于驱动信号振动振荡部分。 控制器（15）将要发送的驱动信号的频率改变到振动驱动装置（14）。