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. 20, 2012
Filed:
Jun. 29, 2006
Norbert Aldiek, Kirchheim/Teck, DE;
Norbert Aldiek, Kirchheim/Teck, DE;
Leuze Electronic GmbH & Co. KG, Owen/Teck, DE;
Abstract
The invention relates to an optical sensor () for detecting objects in a monitored area, said sensor comprising at least one transmitter () for emitting light rays (), at least one receiver () for receiving transmitted light rays (), and an evaluation unit () for generating an object detection signal in dependence on signals received and present at the receiver () output. Furthermore provided is an optical element consisting of an injection-molded plastic part (). Respectively one first and one second segment of the optical element functions as a Fresnel lens () for forming a beam with the transmitted light rays () and/or the received light rays ().