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. 08, 2013
Filed:
Apr. 13, 2011
Applicant:
Joerg Droemer, Bad Urach-Wittlingen, DE;
Inventor:
Joerg Droemer, Bad Urach-Wittlingen, DE;
Assignee:
Leuze Electronic GmbH + Co. KG, Owen/Teck, DE;
Attorneys:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G06K 7/10 (2006.01);
U.S. Cl.
CPC ...
Abstract
An optoelectronic device for detecting marks with defined contrast patterns includes a transmitter to emit polarized light beams, a receiver to receive light beams and having an output to produce receiving signals representing the received light beams, and a an evaluation unit to which the receiving signals are fed and in which the contrast pattern of a mark is detected with the aid of the receiving signals present at the receiver output. A thin-film polarization filter is arranged in front of the receiver to filter out a share of the received light beams specular reflected back by the mark.