公开(公告)号：US11344182B2

公开(公告)日：2022-05-31

申请号：US16846832

申请日：2020-04-13

Applicant: OLYMPUS CORPORATION

Inventor： Kosuke Kawahara

IPC: A61B1/00 ,  A61B1/04 ,  A61B1/07 ,  A61B1/05 ,  G02B23/24

Abstract: An endoscope includes: an image pickup device configured to convert image pickup light into an image pickup signal and output the image pickup signal; a light emitting element configured to output an optical signal based on the image pickup signal; a bonded prism including: a first prism including a first reflecting surface configured to reflect the image pickup light and a lower surface that is a first emitting surface configured to emit the image pickup light to the image pickup device; and a second prism including a second reflecting surface configured to reflect the optical signal that is incident from an upper surface and outputted from the light emitting element, the second reflecting surface being bonded with the first reflecting surface; and an optical fiber configured to transmit the optical signal reflected by the second reflecting surface.

公开(公告)号：US11846808B2

公开(公告)日：2023-12-19

申请号：US17387274

申请日：2021-07-28

Applicant: OLYMPUS CORPORATION

Inventor： Kosuke Kawahara

IPC: G02B6/30 ,  A61B1/00 ,  G02B6/42 ,  G02B23/24 ,  G02B23/26

CPC classification number: G02B6/30 ,  A61B1/0011 ,  A61B1/00013 ,  G02B6/424 ,  G02B23/2484 ,  A61B1/00165 ,  G02B23/26

Abstract: An optical transducer for endoscope includes an optical element, an optical fiber, and a fiber holding member including a first holding member including a first principal surface and a second principal surface and a second holding member in which a third principal surface is disposed to face the second principal surface, a first through-hole into which the optical fiber is inserted, being formed in the first holding member, the optical element being mounted on a fourth principal surface. A trench connected to the first through-hole and including openings respectively on opposed two side surfaces is formed on the second principal surface. Only a part of a distal end portion of the optical fiber is observable from the openings of the trench.

公开(公告)号：US11986154B2

公开(公告)日：2024-05-21

申请号：US17225295

申请日：2021-04-08

Applicant: OLYMPUS CORPORATION

Inventor： Kosuke Kawahara

IPC: A61B1/00 ,  A61B1/05 ,  G02B6/42 ,  G02B23/26

CPC classification number: A61B1/0017 ,  A61B1/00013 ,  A61B1/05 ,  G02B6/424 ,  G02B23/26

Abstract: An optical transducer for endoscope includes an optical device, a ferrule including an opaque first holding member including a first principal surface, a second principal surface, and a through-hole, and a transparent second holding member including a third principal surface and a fourth principal surface, the third principal surface of the second holding member abutting on the second principal surface, the optical device being bonded to the fourth principal surface, the third principal surface including a recess including an opening and having a bottom, the recess having the bottom communicating with the through-hole, and an optical fiber provided in the recess through the through-hole.

公开(公告)号：US10819960B2

公开(公告)日：2020-10-27

申请号：US16515240

申请日：2019-07-18

Applicant: OLYMPUS CORPORATION

Inventor： Hideharu Miyahara ,  Yusuke Nakagawa ,  Kosuke Kawahara

IPC: A61B1/00 ,  A61B1/05 ,  A61B1/005 ,  A61B1/04 ,  G02B6/42 ,  G02B23/24 ,  G02B23/26 ,  H01S5/022 ,  H04N7/18 ,  H04N7/22 ,  H01L31/0232 ,  H04B10/25 ,  A61B1/045 ,  H04N5/225

Abstract: An endoscope including an image pickup module in a distal end section, wherein the image pickup module including an image pickup unit including an image pickup device, a light emitting element configured to emit an optical signal from a light emission surface, and a ferrule disposed in the image pickup unit, in which the light emission surface is inclined at a first angle of not less than 35 degrees nor more than 55 degrees to the distal end section central axis, a fiber distal end portion is inclined at a second angle of not less than 35 degrees nor more than 55 degrees to the distal end section central axis, and the optical fiber extends toward the distal end section central axis, and is arranged along a bending section central axis in a bending section.