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:
Mar. 07, 2023

Filed:

Apr. 19, 2022
Applicant:

Cognex Corporation, Natick, MA (US);

Inventors:

Andrew Parrett, Boston, MA (US);

John F. Filhaber, East Haddam, CT (US);

Andrew Goodale, Maynard, MA (US);

Laurent Belanger, Hudson, NH (US);

Ronald Zimmerman, Boulder, CO (US);

Assignee:

Cognex Corporation, Natick, MA (US);

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G02B 27/48 (2006.01); G01N 21/956 (2006.01); G02B 5/02 (2006.01); G01N 21/89 (2006.01); G01N 21/88 (2006.01); G01B 11/25 (2006.01);
U.S. Cl.
CPC ...
G02B 27/48 (2013.01); G01B 11/25 (2013.01); G01N 21/8806 (2013.01); G01N 21/8901 (2013.01); G01N 21/956 (2013.01); G02B 5/0215 (2013.01); G02B 5/0278 (2013.01); G01N 2021/8908 (2013.01);
Abstract

A system for forming a homogenized illumination line which can be imaged as a low-speckle line is disclosed. The system includes a laser configured to emit a collimated laser beam; and an illumination-fan generator that includes one or more linear diffusers. The illumination-fan generator is arranged and configured to (i) receive the collimated laser beam, (ii) output a planar fan of diffused light, such that the planar fan emanates from a light line formed on the distal-most one of the one or more linear diffusers, and (iii) cause formation of an illumination line at an intersection of the planar fan and an object.


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