公开(公告)号：US20210145253A1

公开(公告)日：2021-05-20

申请号：US17137574

申请日：2020-12-30

Applicant: OLYMPUS CORPORATION

Inventor： Takehiro MIKI ,  Keiichiro NAKAJIMA ,  Mitsuru NAMIKI

IPC: A61B1/00

Abstract: Provided is an objective optical system including: a first spherical lens and a second spherical lens that are arrayed in this order from an object; and at least one of a first optical medium and a second optical medium, wherein the first optical medium is a solid or liquid disposed at an object side of the first spherical lens and is in close contact with a surface on the object side of the first spherical lens, over an entire optical path; and the second optical medium is a solid or liquid disposed at an opposite side of the second spherical lens from the object and is in close contact with a surface on the opposite side of the second spherical lens from the object, over the entire optical path.

公开(公告)号：US20190335986A1

公开(公告)日：2019-11-07

申请号：US16516485

申请日：2019-07-19

Applicant: OLYMPUS CORPORATION

Inventor： Atsuyoshi SHIMAMOTO ,  Keiichiro NAKAJIMA ,  Masashi YAMADA ,  Takamitsu SAKAMOTO ,  Mitsuru NAMIKI ,  Mikihiko TERASHIMA

IPC: A61B1/07 ,  G02B3/00 ,  A61B1/00

Abstract: An optical-scanning-type observation probe is provided with: an imaging optical system that illumination light scanned by an optical scanner enters and that focuses the illumination light in the form of a spot, multiple times; a projection optical system that emits illumination light coming from a focus position focused by the imaging optical system, toward a subject in the form of a spot; and a light-receiver that is provided independently of the imaging optical system and the projection optical system and that receives reflected light of the illumination light, the reflected light coming from the subject, via a light path different from that of the imaging optical system and the projection optical system.

公开(公告)号：US20180110402A1

公开(公告)日：2018-04-26

申请号：US15839095

申请日：2017-12-12

Applicant: OLYMPUS CORPORATION

Inventor： Masashi YAMADA ,  Atsuyoshi SHIMAMOTO ,  Mitsuru NAMIKI ,  Keiichiro NAKAJIMA ,  Takamitsu SAKAMOTO ,  Mikihiko TERASHIMA ,  Yoko OKABE

IPC: A61B1/00 ,  A61B1/05 ,  A61B1/07

CPC classification number: A61B1/00009 ,  A61B1/00096 ,  A61B1/00172 ,  A61B1/00193 ,  A61B1/045 ,  A61B1/05 ,  A61B1/063 ,  A61B1/0638 ,  A61B1/0669 ,  A61B1/07 ,  G02B23/2469 ,  G02B23/26 ,  G02B26/103

Abstract: Provided is a scanning endoscope system including an illumination-light emitting unit that outputs illumination light emitted from a light source in a spot-like manner toward a subject, a light scanner that scans the illumination light output from the illumination-light emitting unit over the subject, and a light detector that is provided in a movable manner relative to the illumination-light emitting unit and that detects reflection light from a scan position on the subject over which the illumination light is scanned by the light scanner.

公开(公告)号：US20170099421A1

公开(公告)日：2017-04-06

申请号：US15382848

申请日：2016-12-19

Applicant: OLYMPUS CORPORATION

Inventor： Keiichiro NAKAJIMA

IPC: H04N5/235 ,  H04N5/225 ,  A61B1/00 ,  A61B1/06 ,  A61B1/07 ,  H04N5/378 ,  G02B23/24

CPC classification number: H04N5/2354 ,  A61B1/00006 ,  A61B1/00165 ,  A61B1/00172 ,  A61B1/00186 ,  A61B1/0661 ,  A61B1/07 ,  G02B23/2461 ,  G02B23/26 ,  H04N3/02 ,  H04N5/2256 ,  H04N5/378 ,  H04N2005/2255

Abstract: The disclosed optical scanning endoscope apparatus includes a scanner that scans an object with illumination light from a light source, a light amount detector that detects a light amount of the illumination light from the light source, and a controller that controls output of the light source based on the light amount detected by the light amount detector. The controller controls the output of the light source based on an integral value of the light amount detected by the light amount detector during an immediately prior predetermined period.

公开(公告)号：US20180116492A1

公开(公告)日：2018-05-03

申请号：US15846537

申请日：2017-12-19

Applicant: OLYMPUS CORPORATION

Inventor： Masashi YAMADA ,  Atsuyoshi SHIMAMOTO ,  Mitsuru NAMIKI ,  Keiichiro NAKAJIMA ,  Takamitsu SAKAMOTO ,  Mikihiko TERASHIMA ,  Yoko OKABE ,  Yu KONDO

IPC: A61B1/04 ,  A61B1/06 ,  A61B1/00 ,  H04N5/225 ,  H04N5/33

CPC classification number: A61B1/04 ,  A61B1/00009 ,  A61B1/00045 ,  A61B1/00172 ,  A61B1/042 ,  A61B1/0638 ,  A61B1/0646 ,  A61B1/07 ,  A61B1/317 ,  G02B23/2407 ,  G02B23/2423 ,  G02B23/2453 ,  G02B23/2469 ,  G02B23/2476 ,  G02B26/103 ,  H04N5/2256 ,  H04N5/2354 ,  H04N5/332 ,  H04N9/04557 ,  H04N2005/2255

Abstract: Provided is a scanning endoscope system including: an illumination-light emitting portion that is inserted into a body of a patient and that emits illumination light emitted from a light-source portion toward an imaging subject in the body in a spot-like manner; a light scanner that scans the illumination light on the imaging subject; and a light detector that is disposed at a body surface of the patient, and that detects reflected light coming from the scanning position in the imaging subject, at which the illumination light is scanned by the light scanner.

公开(公告)号：US20170325668A1

公开(公告)日：2017-11-16

申请号：US15665500

申请日：2017-08-01

Applicant: OLYMPUS CORPORATION

Inventor： Keiichiro NAKAJIMA

IPC: A61B1/00 ,  G02B23/24 ,  A61B1/06 ,  A61B1/07 ,  G02B23/26

CPC classification number: A61B1/00172 ,  A61B1/00 ,  A61B1/00096 ,  A61B1/0017 ,  A61B1/0653 ,  A61B1/07 ,  G02B23/24 ,  G02B23/26

Abstract: Provided is a scanning endoscope apparatus capable of generating an image having an optimum SNR. The scanning endoscope apparatus includes: a light source; an optical fiber that guides light emitted from the light source; an actuator that deflects light emitted from the optical fiber and repeatedly scans the deflected light on the irradiation object; a light detector with a controllable multiplication factor, the light detector photoelectrically converting signal light obtained from the irradiation object irradiated with the light; and a controller, the controller controlling the multiplication factor so as to optimize a SNR based on electric signals obtained for a certain period, the signals having been photoelectrically converted by the optical detection unit.

公开(公告)号：US20170311779A1

公开(公告)日：2017-11-02

申请号：US15597847

申请日：2017-05-17

Applicant: OLYMPUS CORPORATION

Inventor： Keiichiro NAKAJIMA

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

CPC classification number: A61B1/00096 ,  A61B1/00006 ,  A61B1/00009 ,  A61B1/00172 ,  A61B1/04 ,  A61B1/063 ,  A61B1/0638 ,  A61B1/0669 ,  A61B1/07 ,  G02B23/2423 ,  G02B26/103

Abstract: This optical scanning endoscope apparatus can correct the white balance even when bending occurs in the illumination fiber. An optical scanning endoscope apparatus includes an illumination fiber that guides illumination light composed of RGB wavelengths (colors), an actuator that drives the tip of the illumination fiber and repeatedly scans the illumination light over an object, a photodetector that detects light obtained from the object by scanning of the illumination light, a signal processor that generates an image based on output of the photodetector, and a light amount detector for white balance that detects the light amount of light of RGB wavelengths from a portion of the illumination light guided by the illumination fiber. Based on the light amount of light of each of the RGB wavelengths detected by the light amount detector for white balance, the controller adjusts the white balance of the generated image.

公开(公告)号：US20170227755A1

公开(公告)日：2017-08-10

申请号：US15499972

申请日：2017-04-28

Applicant: OLYMPUS CORPORATION

Inventor： Keiichiro NAKAJIMA

IPC: G02B23/24 ,  G02B26/10 ,  A61B1/06

CPC classification number: G02B23/2469 ,  A61B1/00172 ,  A61B1/0638 ,  A61B1/0661 ,  A61B1/07 ,  G02B26/103

Abstract: This optical scanning endoscope apparatus includes an actuator that scans light from a light source over an object with a predetermined scan cycle, a light amount detector that detects the light amount from the light source, and a controller that controls output of the light source based on the light amount detected by the light amount detector. During each scan cycle by the actuator, the controller controls the light source so as to output light according to a predetermined output change pattern, sequentially calculates an integral value of the light amount detected by the light amount detector over a predetermined time period, and controls the maximum of the change in output of the light source due to the output change pattern so that the integral value does not exceed a predetermined standard value.