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. 28, 2015

Filed:

Jul. 09, 2012
Applicants:

Robert E. Bridges, Kennett Square, PA (US);

Ryan Kruse, Waltham, MA (US);

Paul Mccormack, Carlisle, MA (US);

Emmanuel Lafond, Tewksbury, MA (US);

Inventors:

Robert E. Bridges, Kennett Square, PA (US);

Ryan Kruse, Waltham, MA (US);

Paul McCormack, Carlisle, MA (US);

Emmanuel Lafond, Tewksbury, MA (US);

Assignee:

FARO TECHNOLOGIES, INC., Lake Mary, FL (US);

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H04N 13/02 (2006.01); G01B 11/03 (2006.01); G01B 11/25 (2006.01);
U.S. Cl.
CPC ...
G01B 11/03 (2013.01); G01B 11/2527 (2013.01); G01B 11/2536 (2013.01);
Abstract

A method for determining three-dimensional coordinates of an object point on a surface of an object, the method including steps of: sending a beam of light to a diffraction grating; sending a first diffracted beam and a second diffracted beam to an objective lens to form at least two spots of light, which are passed through transparent regions of a plate to produce a first fringe pattern on the surface of the object; imaging the object point illuminated by the first fringe pattern onto a photosensitive array to obtain a first electrical data value; moving the plate to a second position; sending spots through plate to produce a second fringe pattern on the surface of the object; imaging the point onto the array point to obtain a second electrical data value; and calculating the three-dimensional coordinates of the first object point.


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