公开(公告)号：US20190084255A1

公开(公告)日：2019-03-21

申请号：US16173650

申请日：2018-10-29

Applicant: OLYMPUS CORPORATION

Inventor： Kazunari HANANO ,  Susumu TAKAHASHI ,  Yasuhiro MIYAZAKI

IPC: B29D11/00 ,  B33Y10/00 ,  B33Y80/00 ,  G02B7/02 ,  G02B5/00

Abstract: A method of producing a lens unit includes forming a layer by switching between a transmissive material that allows transmission of light and a light-shielding material that shields light, and stacking formed layers to form a lens from the transmissive material and forma barrel that holds the lens from the light-shielding material.

公开(公告)号：US20220031145A1

公开(公告)日：2022-02-03

申请号：US17382477

申请日：2021-07-22

Applicant: OLYMPUS CORPORATION

Inventor： Susumu TAKAHASHI

IPC: A61B1/002 ,  A61B1/00 ,  A61B1/06

Abstract: A light transmission optical member for endoscope includes an incident surface provided at a distal end portion of an insertion section, light being made incident on the incident surface as incident light from a proximal end side of the insertion section, and an emission surface for emitting the light as illumination light. The emission surface includes a diffusing section that diffuses the emitted light. The diffusing section includes a plurality of convex-shaped sections extending in a predetermined direction on the emission surface. Each of the convex-shaped sections includes a first slope section having a first angle with respect to the emission surface, and totally reflecting the incident light, and a second slope section having a second angle smaller than the first angle with respect to the emission surface, and transmitting and emitting reflected light totally reflected on the first slope section and the incident light.

公开(公告)号：US20190265459A1

公开(公告)日：2019-08-29

申请号：US16281195

申请日：2019-02-21

Applicant: OLYMPUS CORPORATION

Inventor： Yasuo HIRATA ,  Susumu TAKAHASHI

IPC: G02B23/26 ,  G02B23/24 ,  A61B1/00 ,  A61B1/005

Abstract: An endoscope system includes an observation optical system, a beam splitter configured to branch light from the observation optical system into first light including visible light from a subject and second light for temperature measurement, an image pickup device configure to receive the first light from the beam splitter and pick up an image of the subject, a spectroscope configured to receive the second light from the beam splitter and measure plural spectral radiances of the subject, and a personal computer configured to calculate the temperature of the subject based on an output signal including the plural spectral radiances of the spectroscope.

公开(公告)号：US20180341100A1

公开(公告)日：2018-11-29

申请号：US15973712

申请日：2018-05-08

Applicant: OLYMPUS CORPORATION

Inventor： Junko ARUGA ,  Susumu TAKAHASHI

IPC: G02B23/24 ,  H04N5/235 ,  A61B1/00 ,  A61B1/05

Abstract: An endoscope apparatus includes two optical path forming optical systems, an image forming optical system, two convex power sections including a convex section, provided in the two optical path forming optical systems, and disposed so as to emit emitted light from the two optical path forming optical systems to the image forming optical system, and an aperture member including two openings configured to transmit the light emitted from the two convex power sections. The centers of the two openings are respectively located on the optical axis side of the image forming optical system with respect to the two optical axes of the two optical path forming optical systems.

公开(公告)号：US20170351086A1

公开(公告)日：2017-12-07

申请号：US15684171

申请日：2017-08-23

Applicant: OLYMPUS CORPORATION

Inventor： Susumu TAKAHASHI

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

CPC classification number: G02B23/26 ,  A61B1/00013 ,  A61B1/00096 ,  A61B1/00101 ,  A61B1/00177 ,  A61B1/00181 ,  A61B1/00186 ,  A61B1/05 ,  A61B1/0676 ,  G02B23/243 ,  G02B23/2453 ,  G02B27/10

Abstract: An adaptor including: first and second optical systems; a prism comprising a mirror region, first light flux and second light flux from the respective optical systems, being incident on the prism, the light flux passing through the prism at a portion, the second light flux being reflected by a mirror region after passing through the portion, the light flux emitted from the prism to a region; and a light-shield at the region, the light-shield shields one of the first and second light flux and is disposed proximally to the prism relative to an imaging system of the endoscope when the adaptor is attached to an endoscope; the first optical system is disposed such that the first light flux is incident in a direction parallel to an optical axis, the second optical system is disposed so that the second light flux is incident in a direction orthogonal to the optical axis.

公开(公告)号：US20200288946A1

公开(公告)日：2020-09-17

申请号：US16813992

申请日：2020-03-10

Applicant: OLYMPUS CORPORATION

Inventor： Susumu TAKAHASHI

IPC: A61B1/00

Abstract: An endoscope apparatus includes a removable optical adaptor and a main body optical system. The optical adaptor includes an aperture and includes a first group optical system having a negative combined focal length as a whole and a second group optical system having a positive combined focal length as a whole in order from an object side. The main body optical system includes an imaging lens configured to form an image of a light flux on an image pickup device, the light flux being transmitted through the adaptor from the object. The first group optical system includes a lens having an Abbe number of 35 or higher, and the second group optical system includes a lens having an Abbe number of 45 or lower.

公开(公告)号：US20190107707A1

公开(公告)日：2019-04-11

申请号：US16137653

申请日：2018-09-21

Applicant: OLYMPUS CORPORATION

Inventor： Susumu TAKAHASHI

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

Abstract: An illumination optical system is formed into a substantially U shape or a partial shape of the substantially U shape as a cross-sectional shape viewed from a distal end side of a longitudinal axis such that an observation optical system is arranged inside, and has a plane as an incidence surface on which light directed toward the distal end side from a proximal end side along the longitudinal axis is incident, a plane as an emission surface from which the light is emitted as illumination light toward a subject, and a reflection surface which is inclined to direct the light incident on the incidence surface toward the emission surface when viewed from the distal end side of the longitudinal axis.