US 12,092,658 B2
Optical detection system and alignment method for a predetermined target object
Sebastian Giessmann, Hsinchu County (TW); and Po-Yi Ting, Hsinchu County (TW)
Assigned to MPI CORPORATION, Hsinchu County (TW)
Filed by MPI CORPORATION, Hsinchu County (TW)
Filed on Jul. 24, 2022, as Appl. No. 17/871,978.
Claims priority of provisional application 63/234,677, filed on Aug. 18, 2021.
Prior Publication US 2023/0058964 A1, Feb. 23, 2023
Int. Cl. G01B 11/30 (2006.01); G01B 11/26 (2006.01); G01R 1/067 (2006.01); G01R 1/18 (2006.01); G01R 31/28 (2006.01); G06T 7/33 (2017.01); G06T 11/00 (2006.01); H04N 5/272 (2006.01)
CPC G01R 1/06772 (2013.01) [G01B 11/26 (2013.01); G01R 1/18 (2013.01); G01R 31/2891 (2013.01); G06T 7/33 (2017.01); G06T 11/00 (2013.01); H04N 5/272 (2013.01); G06T 2210/62 (2013.01)] 10 Claims
OG exemplary drawing
 
1. An alignment method for a predetermined target object, comprising:
providing an optical probe device, wherein the optical probe device includes a plurality of optical fibers, and each of the optical fibers has a fiber end portion for receiving or outputting one or more optical signals;
providing an actual distance parameter, wherein the actual distance parameter is a plane distance on a plane between a selected one of the fiber end portions and a selected visible reference point provided by the optical probe device;
capturing the predetermined target object by an image capturing device so as to display a real-time target object image of the predetermined target object on an image display device in real time;
marking the real-time target object image of the predetermined target object on the image display device so as to obtain a target alignment reference point aligned with the real-time target object image;
transforming the target alignment reference point that is aligned with the real-time target object image into a plane coordinate parameter;
according to the actual distance parameter and the plane coordinate parameter, obtaining a virtual alignment coordinate parameter for providing a virtual alignment point, wherein a distance from the target alignment reference point to the virtual alignment point is equal to a distance from the selected fiber end portion to the selected visible reference point; and
adjusting a relative distance between the optical probe device and the predetermined target object until the selected visible reference point and the virtual alignment point coincide with each other on the image display device, so that the selected fiber end portion is aligned with the predetermined target object in a vertical direction.