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.
Patent No.:
Date of Patent:
Oct. 25, 2022
Filed:
Oct. 27, 2020
Cognex Corporation, Natick, MA (US);
Esther Oteo Lozano, Aachen, DE;
Jose Fernandez Dorado, Aachen, DE;
Nicole Dippel, Aachen, DE;
Pablo Garcia Campos, Aachen, DE;
Laurens Nunnink, Simpleveld, NL;
Cognex Corporation, Natick, MA (US);
Abstract
This invention provides an illumination assembly that is typically attached to the front end of a vision system camera assembly, adapted to generate an illumination pattern onto an object, which allows the vision system process(or) to perform basic shape inspection of the object in addition to feature detection and decoding. A dome illuminator with a diffuse inner surface is provided to the camera assembly with a sufficient opening side to surround the object. The dome illuminator has two systems to create the pattern on an object, including a diffuse illuminator for specular/shiny object surfaces and a secondary, projecting illuminator for matte/diffusive object surfaces. The diffuse illuminator includes a set of light-filtering structures on its inner surface—for example concentric strips or rings that allow projection of a ringed fringe pattern on an (e.g. shiny/specular) object. The fringes can additionally be generated in a given a certain wavelength and/or visible color.