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:
Aug. 25, 2009
Filed:
Mar. 31, 2006
Peter Halter, Frauenfeld, CH;
Peter Halter, Frauenfeld, CH;
Baumer Electric AG, Frauenfeld, CH;
Abstract
An optical sensor () with a light beam () created by a pulsed primary light source (), which light beam is reflected at a surface () of an object and is recognized by a detector. In order to mask interfering effects, which might develop due to diffused light of the light beam (), a compensation light source () emits a light cone during station breaks in operation of the primary light source (), which includes the diffused light range of the light beam () of the primary light source (). In this way, objects within the diffused light area create a compensation light portion, which prevents the activation of the sensor output merely by the diffused light of the light beam ().