The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Date of Patent:
Jul. 05, 2022

Filed:

Apr. 20, 2020
Applicants:

Te Connectivity Services Gmbh, Schaffhausen, CH;

Tyco Electronics (Shanghai) Co., Ltd., Shanghai, CN;

Inventors:

Roberto Francisco-Yi Lu, Bellevue, WA (US);

Sonny O. Osunkwo, Harrisburg, PA (US);

Lei Zhou, Shanghai, CN;

Scott Day, Jacobus, PA (US);

Jeffrey Zerbe, Bressler, PA (US);

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G03F 7/20 (2006.01); G01N 21/88 (2006.01); G01N 21/892 (2006.01); G01N 21/17 (2006.01);
U.S. Cl.
CPC ...
G01N 21/8803 (2013.01); G01N 21/8806 (2013.01); G01N 21/892 (2013.01); G01N 2021/1765 (2013.01);
Abstract

A vision inspection system includes a platform supporting parts for inspection at an inspection zone, an inspection station positioned adjacent the platform at the inspection zone including an imaging device to image the parts in a field of view above the upper surface, and a vision inspection controller receiving images from the imaging device. The vision inspection controller includes an auto focus module for orienting the imaging device relative to the inspection zone. The auto focus module determines a working distance for the imaging device from the inspection zone. The auto focus module calculates an image contrast score of pixel values of the images at various working distances from the inspection zone. The vision inspection controller causes the inspection station to operate the imaging device at an imaging working distance corresponding to the working distance associated with the highest image contrast score.


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