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:
Mar. 13, 2007
Filed:
Mar. 04, 2004
David D. Madsen, Lakeland, MN (US);
Eric P. Rudd, Hopkins, MN (US);
Mark R. Schoeneck, Bloomington, MN (US);
Joseph L. Horijon, Veldhoven, NL;
David D. Madsen, Lakeland, MN (US);
Eric P. Rudd, Hopkins, MN (US);
Mark R. Schoeneck, Bloomington, MN (US);
Joseph L. Horijon, Veldhoven, NL;
CyberOptics Corporation, Golden Valley, MN (US);
Abstract
An illumination and imaging system is provided with a co-axial illuminator that does not include a beamsplitter. The co-axial illuminator achieves efficiencies substantially in excess of those achieved with a beamsplitter. In one aspect, an optical stop is used to reflect illumination upon a target. The optical stop includes an aperture allowing light reflected from the target to pass to a detector. The aperture of the stop has an asymmetrical feature that facilitates operation on specular targets.