Endoscope defogging
    2.
    发明授权

    公开(公告)号:US11510561B2

    公开(公告)日:2022-11-29

    申请号:US16107305

    申请日:2018-08-21

    IPC分类号: A61B1/12 A61B1/002 A61B1/00

    摘要: An endoscope includes a light source coupled to emit light, and a lens disposed proximate to a distal tip of the endoscope tube and structured to absorb at least some of the light. A controller is coupled to the light source, and the controller includes logic that when executed by the controller causes the endoscope to perform operations, including adjusting an emission profile of the light source to heat the lens with the light, and heating the lens mitigates formation of fog on the lens.

    Optical arrangement for an endoscope and endoscope having such an optical arrangement

    公开(公告)号:US11454801B2

    公开(公告)日:2022-09-27

    申请号:US16200624

    申请日:2018-11-26

    发明人: Oliver Rehe

    摘要: An optics arrangement for an endoscope is provided. The optics arrangement images an object situated in front of its distal end to the proximal end of the optics arrangement along a principal beam path having an optical axis. The optics arrangement is designed both for light from the visible spectrum and for light from the near infrared. The optics arrangement includes an aperture stop with a reflection layer in the principal beam path. The reflection layer reflects light from the visible spectrum and transmits light from the near infrared. The reflection layer is inclined in relation to the optical axis.

    Medical imaging apparatus and medical observation system

    公开(公告)号:US11298006B2

    公开(公告)日:2022-04-12

    申请号:US16335689

    申请日:2017-06-27

    摘要: A medical imaging apparatus 11 captures observation light from an observed region inside a subject. This medical imaging apparatus 11 includes plural types of optical path separation devices 5, 6 which respectively guide first observation light and second observation light that are included in observation light from scopes 2, 3 that are inserted into the subject, take in the observation light from the observed region inside the subject, and emit the observation light, along optical paths being different from each other; and an imaging apparatus 7 which is shared by the plural types of optical path separation devices 5,6, is detachably connected to the plural types of optical path separation devices 5,6, and captures the first observation light and the second observation light respectively guided by the connected optical path separation devices.

    Relay lens and method of manufacturing relay lens

    公开(公告)号:US11262561B2

    公开(公告)日:2022-03-01

    申请号:US16400871

    申请日:2019-05-01

    发明人: Takayuki Kato

    摘要: Provided is a relay lens including a plurality of relay optical systems that are arranged in a long, rigid tube along a longitudinal direction and that re-form an image, wherein each of the relay optical systems includes a pair of rod lenses that are disposed with a space therebetween in the longitudinal direction, a barrel that is disposed between the pair of rod lenses along the longitudinal direction, and a positive lens that is fixed to an inner side of the barrel and that has a positive refractive power; and a length of the barrel in the longitudinal direction is larger than a thickness of a peripheral edge of the positive lens in the longitudinal direction.

    ILLUMINATION OPTICAL SYSTEM FOR ENDOSCOPE, OPTICAL ADAPTER FOR ENDOSCOPE, AND OPTICAL ELEMENT

    公开(公告)号:US20220031145A1

    公开(公告)日:2022-02-03

    申请号:US17382477

    申请日:2021-07-22

    发明人: Susumu TAKAHASHI

    IPC分类号: A61B1/002 A61B1/00 A61B1/06

    摘要: 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.