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    Self-aligning rotating optical connector
    1.
    发明授权
    Self-aligning rotating optical connector 有权

    公开(公告)号：US11709324B2

    公开(公告)日：2023-07-25

    申请号：US17366907

    申请日：2021-07-02

    Applicant: Canon U.S.A., Inc.

    Inventor： Anderson Thi Mach ,  Alexander Altshuler ,  Xuri Yan

    IPC: G02B6/38 ,  G02B6/42

    CPC classification number: G02B6/3874 ,  G02B6/389 ,  G02B6/3825 ,  G02B6/3871 ,  G02B6/4292

    Abstract: An optical connection includes a plurality of ferrules, an optical contact to allow transfer of light, a mechanical contact to allow torque transfer from the optical connection, and a rotational self-alignment structure to allow optical fibers of different optical connectors to self-rotate into rotational self-alignment upon action of connecting, wherein the ferrules are aligned and engage the torque transfer. The rotational self-alignment structure can be a tooth configuration, a helical thread configuration, a ferrule guide configuration, a spring sleeve configuration, derivatives thereof and combinations therefrom.

    Apparatus and method for endoscopic image orientation control
    3.
    发明授权
    Apparatus and method for endoscopic image orientation control 有权

    公开(公告)号：US11497382B1

    公开(公告)日：2022-11-15

    申请号：US17213832

    申请日：2021-03-26

    Applicant: CANON U.S.A., INC.

    Inventor： Mitsuhiro Ikuta ,  Anderson Thi Mach ,  Seiji Takeuchi ,  Xuri Yan

    IPC: A61B1/00 ,  H04N5/262 ,  H04N5/225 ,  A61B1/07 ,  A61B90/00

    Abstract: A system and method for displaying an endoscope image in a preferred orientation. An endoscope scans a sample with spectrally encoded light by rotating imaging optics inside an endoscope guide. A processor generates an image based on light returned from the sample, and rotates the image by a first angle offset value and a second angle offset value to display the rotated image in the preferred orientation. The first offset value is an angle difference between a specific direction in which the image is to be displayed on a display and a direction in which the tip of the endoscope is oriented with respect to the imaging plane. The second offset value is an angle difference between a direction of the line of scanning light projected onto a plane perpendicular to the tip and the specific direction in which the image is to be displayed.

    ENDOSCOPE WITH OSCILLATION FOR SPECTRALLY-ENCODED ENDOSCOPY
    4.
    发明申请
    ENDOSCOPE WITH OSCILLATION FOR SPECTRALLY-ENCODED ENDOSCOPY 审中-公开

    公开(公告)号：US20190231182A1

    公开(公告)日：2019-08-01

    申请号：US15886254

    申请日：2018-02-01

    Applicant: Canon U.S.A., Inc.

    Inventor： Jacob Schieffelin Brauer ,  Zhuo Wang ,  Alex Altshuler ,  Anderson Thi Mach

    IPC: A61B1/07 ,  A61B1/00 ,  A61B5/00 ,  G02B23/26

    CPC classification number: A61B1/07 ,  A61B1/00009 ,  A61B1/00045 ,  A61B1/00172 ,  A61B1/0661 ,  A61B5/0075 ,  G02B23/26

    Abstract: Some systems comprise a light source; a spectrometer; an optical scope that has a longitudinal axis and that includes a rotatable optical assembly, which is coupled to the light source and to the spectrometer; and an oscillating-drive device that is coupled to the optical scope. Also, the oscillating-drive device and the optical scope are configured such that the oscillating-drive device can oscillate the rotatable optical assembly of the optical scope through greater than 90° of rotation around the longitudinal axis of the optical scope. And some systems comprise an optical scope that includes a rotatable optical assembly and a spooling mechanism. The rotatable optical assembly includes one or more light-guiding components. Furthermore, the spooling mechanism is configured to wind or unwind the one or more light-guiding components when the rotatable optical assembly rotates.

    Apparatus, System and Method for Correcting Nonuniform Rotational Distortion in an Image
    5.
    发明申请
    Apparatus, System and Method for Correcting Nonuniform Rotational Distortion in an Image 审中-公开

    公开(公告)号：US20200149929A1

    公开(公告)日：2020-05-14

    申请号：US16184646

    申请日：2018-11-08

    Applicant: Canon U.S.A., Inc.

    Inventor： Alexander Altshuler ,  Jacob Schieffelin Brauer ,  Anderson Thi Mach

    IPC: G01D5/30 ,  G06T5/00

    Abstract: An image processing apparatus and method for detecting a position of a rotating optical fiber is provided. The apparatus includes at least one rotating optical fiber that rotates about an axis of rotation and that emits light towards a surface and at least two stationary fibers for transmitting light reflected from a surface, each of the at least two stationary fibers having a known predetermined position relative to each other and to the axis of rotation of the at least one rotating optical fiber. At least one detector is configured to detect an intensity of light transmitted through each of the at least two stationary fibers within a given time interval and at least one calculator is configured to use the detected intensities and the known predetermined positions of each of the at least two stationary fibers to determine a relative angular position of the rotating optical fiber with respect to the at least two stationary fibers.

    OPTICAL FIBER ARRANGEMENT FOR ENDOSCOPE
    6.
    发明申请
    OPTICAL FIBER ARRANGEMENT FOR ENDOSCOPE 审中-公开

    公开(公告)号：US20190223706A1

    公开(公告)日：2019-07-25

    申请号：US16248607

    申请日：2019-01-15

    Applicant: CANON U.S.A., INC.

    Inventor： Seiji Takeuchi ,  Mitsuhiro Ikuta ,  Anderson Thi Mach

    IPC: A61B1/05 ,  A61B1/06 ,  A61B1/07 ,  A61B1/00 ,  G02B6/10

    Abstract: An endoscopic probe extending from a proximal end to a distal end thereof, and configured to be inserted in a tubular lumen to observe a sample is disclosed. The probe includes a first waveguide enclosed within an inner sheath and extending from the proximal end to the distal end along an axis of the inner sheath; and a plurality of second waveguides having at least the distal ends thereof arranged in one or more rings around the inner sheath to surround the distal end of the first waveguide. At the distal end, the axis of each of the second waveguides is tilted with respect to the axis of the first waveguide by a tilt angle which can be adjustable. This novel endoscopic probe has a resultant numerical aperture larger than the numerical aperture of each of the second waveguides, and it may be applicable to forward-viewing spectrally encoded endoscopes (SEE).

    Window assembly for endoscopic probe
    9.
    发明授权
    Window assembly for endoscopic probe 有权

    公开(公告)号：US11259694B2

    公开(公告)日：2022-03-01

    申请号：US16746154

    申请日：2020-01-17

    Applicant: Canon U.S.A., Inc.

    Inventor： Anderson Thi Mach

    IPC: A61B1/07 ,  A61B1/00

    Abstract: Endoscope window assembly designs and methods of assembling sub-millimeter imaging endoscopes are disclosed. An endoscope apparatus comprises an elongated cylindrical probe having rotating illumination optics in the middle and at least one detection fiber and a spectrometer connected to the detection fiber and a light source connected to the illumination optics and a processor for imaging. An optically transparent window is attached to the cylindrical probe at the distal end thereof, the window seals the rotating illumination optics inside the cylindrical probe, and the at least one detection fiber is located on the outer surface of the cylindrical probe. The present disclosure provides various embodiments of a window component that covers only the illumination component of the optical probe. Endoscope embodiments where the window component covers only the illumination component eliminate or significantly reduce exposure of detection fibers to reflected illumination light without blocking a light collection optical path.

    Optical fiber arrangement for endoscope
    10.
    发明授权
    Optical fiber arrangement for endoscope 有权

    公开(公告)号：US11213191B2

    公开(公告)日：2022-01-04

    申请号：US16248607

    申请日：2019-01-15

    Applicant: CANON U.S.A., INC.

    Inventor： Seiji Takeuchi ,  Mitsuhiro Ikuta ,  Anderson Thi Mach

    IPC: A61B1/00 ,  A61B1/05 ,  A61B1/06 ,  G02B6/10 ,  A61B1/07 ,  G02B23/24 ,  F21V8/00 ,  G02B6/44 ,  G02B6/42 ,  G02B6/36

    Abstract: An endoscopic probe extending from a proximal end to a distal end thereof, and configured to be inserted in a tubular lumen to observe a sample is disclosed. The probe includes a first waveguide enclosed within an inner sheath and extending from the proximal end to the distal end along an axis of the inner sheath; and a plurality of second waveguides having at least the distal ends thereof arranged in one or more rings around the inner sheath to surround the distal end of the first waveguide. At the distal end, the axis of each of the second waveguides is tilted with respect to the axis of the first waveguide by a tilt angle which can be adjustable. This novel endoscopic probe has a resultant numerical aperture larger than the numerical aperture of each of the second waveguides, and it may be applicable to forward-viewing spectrally encoded endoscopes (SEE).

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