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:
Apr. 28, 2009
Filed:
Jul. 09, 2004
Applicant:
Mohsen Abdollahi, Huntsville, AL (US);
Inventor:
Mohsen Abdollahi, Huntsville, AL (US);
Assignee:
Other;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G01B 11/24 (2006.01);
U.S. Cl.
CPC ...
Abstract
A high speed, phase shifting scanning profilometry system is disclosed. A high speed CMOS sensor having more than 3 rows of pixels, in one embodiment having 1024, each row of which being randomly accessible, is positioned above a workpiece movable below the camera. The workpiece is illuminated in a non-uniform manner by an illumination source configured to project a predetermined pattern or gradient of light. As the workpiece is moved under the sensor, selected rows of pixels register the non-uniform light reflected from the workpiece and provide the data to a computer for calculating a surface profile for that row.