公开(公告)号：US10976151B2

公开(公告)日：2021-04-13

申请号：US16232689

申请日：2018-12-26

Applicant: INDUSTRIAL TECHNOLOGY RESEARCH INSTITUTE

Inventor： Yuan Chin Lee ,  Ting Wei Chang ,  Chi Shen Chang ,  Chy Lin Wang

IPC: G01B9/02 ,  G02B27/12

Abstract: An optical interferometer includes a beam splitter module and an optical sensor. The beam splitter module includes a lens assembly and a splitter cube. A light incident surface of the splitter cube is substantially orthogonal to an optical axis of the lens assembly. An acute angle is between the light incident surface and a light splitting surface of the splitter cube. A sampling surface of the splitter cube is substantially parallel to the light incident surface. A light reflecting surface of the splitter cube is substantially orthogonal to the light incident surface. The light incident surface is closer to the lens assembly than the sampling surface. A reference arm is defined between a splitter position on the light splitting surface and the light reflecting surface, a sample arm is defined between the splitter position and the sampling surface, and the reference arm is longer than the sample arm.

公开(公告)号：US11583169B2

公开(公告)日：2023-02-21

申请号：US16987744

申请日：2020-08-07

Applicant: INDUSTRIAL TECHNOLOGY RESEARCH INSTITUTE

Inventor： Chun-Chieh Huang ,  Yuan Chin Lee ,  Chi Shen Chang ,  Hung Chih Chiang

IPC: A61B1/00 ,  G02B26/10 ,  H04N5/225 ,  A61B5/00 ,  A61B1/05

Abstract: An optical fiber scanning probe includes a rotor and at least one optical fiber. The rotor includes a torque rope rotatable about its central axis. The optical fiber is disposed on the rotor and eccentric relative to the torque rope. A central axis of the optical fiber is substantially parallel to the central axis of the torque rope. When the torque rope rotates about its central axis, the rotor brings a free end of the optical fiber to scan along an arc path.