公开(公告)号：US11375883B2

公开(公告)日：2022-07-05

申请号：US16010608

申请日：2018-06-18

Applicant: OLYMPUS CORPORATION

Inventor： Yuhei Takata

IPC: A61B1/00 ,  H01S3/10 ,  G02B26/12 ,  G02B26/10 ,  H01S3/101 ,  A61B1/04 ,  A61B1/06 ,  A61B1/07

Abstract: A light-scanning endoscope is provided with: a light-scanner that causes an optical fiber to be vibrated; a controller that causes light to be emitted from the optical fiber with the same phase as the vibrations; an adjusting unit that adjusts a distortion correction amount on the basis of a shape of a row of irradiation positions of the light on an imaging subject; and a phase correcting unit that corrects the phase in which the light is emitted on the basis of the adjusted distortion correction amount.

公开(公告)号：US12213225B2

公开(公告)日：2025-01-28

申请号：US18115532

申请日：2023-02-28

Applicant: OLYMPUS CORPORATION

Inventor： Yuhei Takata

IPC: H05B47/105 ,  A61B18/00 ,  A61B18/24 ,  A61B18/20

Abstract: A control device, comprising: a processor including hardware, the processor being configured to: control a laser light source to emit a first instance of a laser light, calculate an overlap information related to an overlap area of an irradiation area of an irradiation target that is irradiated with the first instance of the laser light, and control the laser light source to emit a second instance of the laser light based on the overlap information.

公开(公告)号：US11426060B2

公开(公告)日：2022-08-30

申请号：US16406149

申请日：2019-05-08

Applicant: OLYMPUS CORPORATION

Inventor： Yuhei Takata

IPC: A61B1/00 ,  G02B23/24 ,  A61B1/045 ,  A61B1/06 ,  G02B23/26 ,  G02B26/10 ,  A61B1/04

Abstract: An optical scanning endoscope device includes: a laser element; an optical fiber that guides laser light from the laser element; a first detector that detects a guided light amount of the laser light in the optical fiber; a second detector that detects light from a subject and outputs a detection signal; a first calculator that calculates an optical coupling ratio between the laser element and the optical fiber on the basis of the guided light amount; a second calculator that calculates a degradation ratio of the laser element on the basis of the guided light amount; a first adjuster that adjusts the magnitude of the detection signal on the basis of the optical coupling ratio; and a second adjuster that adjusts the output light amount of the laser light from the laser element on the basis of the degradation ratio.

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.