公开(公告)号：US20150238089A1

公开(公告)日：2015-08-27

申请号：US14708654

申请日：2015-05-11

Applicant: OLYMPUS CORPORATION

Inventor： Ken Fujinuma ,  Hiroya Fukuyama

IPC: A61B5/00 ,  A61B1/06 ,  A61B1/04 ,  A61B5/02 ,  A61B1/07 ,  A61B1/00

CPC classification number: A61B5/0086 ,  A61B1/00009 ,  A61B1/00045 ,  A61B1/00071 ,  A61B1/0008 ,  A61B1/00096 ,  A61B1/00165 ,  A61B1/00172 ,  A61B1/04 ,  A61B1/042 ,  A61B1/0661 ,  A61B1/07 ,  A61B1/3137 ,  A61B5/0062 ,  A61B5/0064 ,  A61B5/0073 ,  A61B5/02007 ,  A61B5/1455 ,  A61B5/4887 ,  A61B5/489 ,  A61B5/7225 ,  A61B5/7278 ,  A61B2562/0233 ,  G01N21/4795

Abstract: There is provided an inside observation apparatus of an endoscope and the like which can perform an inside observation for irradiating an illumination light to a minute area of a surface of an object (for example, a living tissue) having a light scattering property and detecting a back-scattered light of the illumination light, can increase a detected light amount by a simply and low cost configuration by making an area of a detection region larger than an illumination region, and can reduce a time necessary to detect an body (for example, a blood vessel) to be observed and detect a region deeper than a conventional region.

Abstract translation: 提供了一种内窥镜等的内部观察装置，其能够进行向具有光散射性的物体（例如，活体组织）的表面的微小的面积照射照明光的内部观察，并且检测 通过使检测区域的面积大于照明区域，能够通过简单且低成本的构造来增加检测光量，并且可以减少检测身体所需的时间（例如， 血管），并且检测比常规区域更深的区域。

公开(公告)号：US10151916B2

公开(公告)日：2018-12-11

申请号：US15215626

申请日：2016-07-21

Applicant: OLYMPUS CORPORATION

Inventor： Takeshi Mori ,  Ken Fujinuma

IPC: G02B23/24 ,  A61B1/00 ,  G02B26/10 ,  A61B1/07 ,  H04N5/225 ,  H04N5/235

Abstract: An optical scanning observation apparatus includes a light emission timing controller, a fiber, a driver, a photodetector, an offset processor that corrects an offset value based on an electrical signal output by the photodetector while a light emission timing controller suspends light emission of a light source, and a signal processor that generates an image signal based on the electrical signal for which the offset value was corrected by the offset processor.

公开(公告)号：US10758112B2

公开(公告)日：2020-09-01

申请号：US15811858

申请日：2017-11-14

Applicant: OLYMPUS CORPORATION

Inventor： Ken Fujinuma

IPC: A61B1/07 ,  G02B26/10 ,  G02B23/26 ,  A61B1/00 ,  G02B23/24

Abstract: A scanning endoscope including an optical fiber scanner that vibrates a distal end of the optical fiber that guides illumination light and emits the illumination light from the distal end thereof, a controller that conducts control for vibrating the optical fiber at a certain driving frequency set according to a resonance frequency of the optical fiber and for controlling amplitude of the vibration so as to be changed at a certain modulation frequency, and a movement detector that detects the resonance frequency of the optical fiber, wherein the controller changes the driving frequency and the modulation frequency at the same rate as the rate of change of the resonance frequency when the resonance frequency of the optical fiber detected by the movement detector changes.

公开(公告)号：US10754143B2

公开(公告)日：2020-08-25

申请号：US15868352

申请日：2018-01-11

Applicant: OLYMPUS CORPORATION

Inventor： Ken Fujinuma

IPC: G02B23/24 ,  G02B26/10

Abstract: An optical scanning method includes detecting a resonance frequency of a tip of a fiber while sweeping a vibration frequency of the tip of the fiber over a predetermined frequency range, the tip of the fiber being supported to allow oscillation, determining a driving frequency of the tip of the fiber on the basis of the detected resonance frequency, and scanning light over an object by causing the light to be emitted from the tip of the fiber while driving and vibrating the tip of the fiber at the driving frequency.

公开(公告)号：US11759099B2

公开(公告)日：2023-09-19

申请号：US16042185

申请日：2018-07-23

Applicant: OLYMPUS CORPORATION

Inventor： Ken Fujinuma

IPC: A61B1/00 ,  H05B47/155 ,  H05B47/105 ,  A61B1/06 ,  A61B1/04 ,  G02B26/10 ,  G01N21/64 ,  A61B5/00 ,  G03B21/20 ,  H04N23/56 ,  A61B1/07 ,  A61N5/06 ,  A61B90/00 ,  A61B90/30

CPC classification number: A61B1/0655 ,  A61B1/00006 ,  A61B1/00009 ,  A61B1/00172 ,  A61B1/043 ,  A61B1/0638 ,  A61B1/0646 ,  A61B1/0669 ,  A61B1/07 ,  A61B5/0062 ,  A61B5/0071 ,  A61B5/0084 ,  G01N21/6456 ,  G02B26/103 ,  G03B21/204 ,  H04N23/56 ,  H05B47/105 ,  H05B47/155 ,  A61B1/00186 ,  A61B90/30 ,  A61B2090/366 ,  A61B2090/373 ,  A61N5/0601

Abstract: An optical scanning imaging/projection apparatus includes a light source that outputs illumination light and projection light in the visible range, an optical scanner that scans the illumination light and the projection light, which are output from the light source, along a predetermined scanning trajectory, a switch that switches the output from the light source so that the illumination light and the projection light are alternately output, an optical detector that detects observation light generated by a subject irradiated with the illumination light, a storage that stores data in which an intensity of the detected observation light detected is associated with information indicating a detection position on the scanning trajectory, and a projection light controller that controls, on the basis of the data stored in the storage unit, an intensity of the projection light to be applied to each position on the scanning trajectory.

公开(公告)号：US10859816B2

公开(公告)日：2020-12-08

申请号：US16403830

申请日：2019-05-06

Applicant: OLYMPUS CORPORATION

Inventor： Ken Fujinuma ,  Yuhei Takata

IPC: A61B1/07 ,  A61B1/00 ,  G02B26/10 ,  G02B23/24 ,  H04N5/235 ,  H04N5/225

Abstract: A scanning-type image acquisition device includes: drivers that respectively vibrate in an x direction and a y direction that are perpendicular to a longitudinal axis of an optical fiber that guides illumination light from a light source and cause a tip of the optical fiber to be spirally scanned on a subject; a drive-signal generating circuit that generates drive signals for driving the drive units; an adjustment section that adjusts the drive signals generated by the drive-signal generating circuit and generates position reference data; a photodetector that detects scattered light of the illumination light at each scanning position of an illumination light spot on the subject due to the drivers; and an image generating circuit that generates an image by arranging intensity values of the scattered light detected by the photodetector in pixels in accordance with the position reference data output from the adjustment section.

公开(公告)号：US10151914B2

公开(公告)日：2018-12-11

申请号：US15191801

申请日：2016-06-24

Applicant: OLYMPUS CORPORATION

Inventor： Takeshi Mori ,  Ken Fujinuma

IPC: G02B23/24 ,  G02B23/26 ,  G02B26/10 ,  A61B1/00 ,  A61B1/06 ,  H04N9/07 ,  H04N9/43 ,  H04N9/77

Abstract: An optical scanning observation apparatus includes: a light source selectively emitting a plurality of illumination lights of different colors; a light emission timing controller controlling light emission timing, based on a predetermined ratio of number of light emissions of each color of the illumination light emitted from the light source; a fiber guiding the illumination light from the light source; an actuator vibratory driving the tip part of the fiber; an optical system for irradiating the illumination light emitted from the fiber; an optical detector; and a signal processor.

公开(公告)号：US09347871B2

公开(公告)日：2016-05-24

申请号：US14458474

申请日：2014-08-13

Applicant: OLYMPUS CORPORATION

Inventor： Ken Fujinuma ,  Shintaro Takahashi

IPC: G02B21/00 ,  G01N21/17 ,  G02B23/24 ,  G02B21/16 ,  G01J1/44 ,  G01J1/42

CPC classification number: G01N21/17 ,  G01J1/44 ,  G01J2001/4242 ,  G01N2201/06113 ,  G01N2201/0697 ,  G02B21/002 ,  G02B21/0084 ,  G02B21/16 ,  G02B23/24

Abstract: A laser scanning type observation apparatus includes a pulsed-laser oscillation means irradiating pulsed laser to an object, a detector receiving light from the object to output a detection signal, a means detecting pulsed-laser oscillation to output a synchronous signal, a circuit delaying the synchronous signal for an optional amount of time to output a trigger signal, a means sampling the detection signal in synchronization with the trigger signal, a memory storing the sampled detection signal, a setting unit capable of setting delay time for delaying the synchronous signal in two or more stages within one period of the synchronous signal, and a decision unit determining an optimum delay stage for image formation using data on intensities of the detection signal at the respective delay stages, wherein the setting means fixes delay time for delaying the synchronous signal at delay time corresponding to the delay stage determined by the decision unit.

Abstract translation: 激光扫描型观察装置包括将物体照射脉冲激光的脉冲激光振荡装置，从物体接收光以输出检测信号的检测器，检测脉冲激光振荡以输出同步信号的装置，延迟电路 同步信号，用于输出触发信号的可选择的时间量，与触发信号同步地对检测信号进行采样的装置;存储采样检测信号的存储器;能够设置用于延迟同步信号的延迟时间的设置单元 或同步信号的一个周期内的多个阶段，以及判定单元，使用关于各个延迟级的检测信号的强度的数据，确定用于图像形成的最佳延迟级，其中，所述设定单元固定用于将同步信号延迟的延迟时间 延迟时间对应于由判定单元确定的延迟级。