公开(公告)号：US10591385B2

公开(公告)日：2020-03-17

申请号：US15950709

申请日：2018-04-11

Applicant: EXFO Inc.

Inventor： Stephane Perron ,  Daniel Gariepy ,  Nicolas Caron ,  Robert Baribault ,  Vincent Racine

IPC: G01M11/00 ,  G02B6/38 ,  H04B10/073

Abstract: There is provided a method, system and image capture device for determining a polarity of a multi-fiber cable link comprising a plurality of optical fiber links each connected between a first multi-fiber connector and a second multi-fiber connector, according to said polarity. Test light is injected into one or more of the optical fiber links via corresponding injection ports of the first multi-fiber connector, in accordance with a defined injection pattern; at least one polarity-testing image of the second multi-fiber connector is generated in which test light exiting at least one of the optical fiber links through one or more exit ports of the second multi-fiber connector is imaged as one or more spotlight spots in the polarity-testing image; and the polarity of the multi-fiber cable link is determined based on a pattern of said one or more spotlight spots in said polarity-testing image.

公开(公告)号：US12130197B2

公开(公告)日：2024-10-29

申请号：US17455225

申请日：2021-11-17

Applicant: EXFO Inc.

Inventor： Nicolas Caron ,  Olivier Cote ,  Mario L′Heureux

IPC: G01M11/00 ,  G02B6/38 ,  G02B21/06 ,  G02B21/36 ,  G06T7/00 ,  H04N23/45 ,  H04N23/74

CPC classification number: G01M11/31 ,  G02B6/385 ,  G02B21/06 ,  G02B21/365 ,  G06T7/0002 ,  H04N23/45 ,  H04N23/74 ,  G06T2207/10056 ,  G06T2207/10152

Abstract: There are provided systems and methods for inspecting an endface of an optical-fiber connector using an optical-fiber connector endface inspection microscope system comprising one or more image detectors for capturing images over the whole endface to be inspected. An illumination system comprises two or more illumination sources disposed so as to illuminate respective regions over the connector endface and to prevent dark zones in the capture images. The illumination sources are activated in sequence, such that adjacent sources are never activated at the same time, and corresponding images captured in sequence, i.e., one after the other. In this case, it is also possible to activate the illumination sources in sequence, such that adjacent sources are never activated at the same time. Activating the illumination sources separately eliminates the illumination overlap and so eliminates the double image artifact. This allows for a more uniformly lit image with less dark spots.

公开(公告)号：US11821808B2

公开(公告)日：2023-11-21

申请号：US16944853

申请日：2020-07-31

Applicant: EXFO Inc.

Inventor： Olivier Cote ,  Nicolas Caron ,  Mario L'Heureux ,  Robert Baribault

IPC: G06T7/62 ,  G01M11/00 ,  G06T7/00

CPC classification number: G01M11/3145 ,  G01M11/3136 ,  G06T7/0004 ,  G06T7/62 ,  G06T2207/10056 ,  G06T2207/30108

Abstract: There is therefore provided a method, system and computer program for detecting duplicate optical-fiber connector endface inspections performed on a same optical-fiber connector. Duplicate optical-fiber connector endface inspections can be detected by extracting a signature of the optical-fiber connector endface from the acquired optical-fiber connector endface inspection image to uniquely identify the optical-fiber connector and detect duplicate optical-fiber connector endface inspections. The signature can be stored to help detection of inadvertent or fraudulent duplicate or repetitive measurements made on a same optical-fiber connector.