公开(公告)号：US10794732B2

公开(公告)日：2020-10-06

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: G01N21/47 ,  G01D5/30 ,  G06T5/00 ,  G06T7/70

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.

公开(公告)号：US20200245854A1

公开(公告)日：2020-08-06

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.