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:
Nov. 17, 2015
Filed:
Sep. 16, 2011
Aldo Bojarski, Höckendorf, DE;
Klaus Erler, Lübeck, DE;
Katrin Künzelmann, Dresden, DE;
Andre Legner, Dresden, DE;
Paul Smith, Cambridge, GB;
Tobby Strassberger, Höckendorf, DE;
Aldo Bojarski, Höckendorf, DE;
Klaus Erler, Lübeck, DE;
Katrin Künzelmann, Dresden, DE;
Andre Legner, Dresden, DE;
Paul Smith, Cambridge, GB;
Tobby Strassberger, Höckendorf, DE;
AB Elektronik Sachsen GmbH, Klingenberg, DE;
Abstract
The invention relates to sensors for monitoring a medium, comprising an electromagnetic radiation source and a detector of electromagnetic radiation, the medium being located in the ray path between the electromagnetic radiation source and the detector and the refraction varying when the medium varies. The sensors are characterized by their ease of production. To that end, the electromagnetic radiation source and detector are disposed in at least one housing. Furthermore, either at least one region or at least one component of the housing consists of material which is transparent to electromagnetic radiation, the medium being located in the region or at the component of the housing. At least one wall of the region is so disposed or designed that the radiation for refraction impinges on or emerges from the surface at an angle which is different from 90°. In addition, the detector is at least one photo diode, such that, when the medium varies, the radiation either does not impinge or impinges on the photo diode.