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:
Jul. 05, 2005
Filed:
Aug. 11, 2004
Gerhard Reichinger, Rednitzhembach, DE;
Georg Kodl, Nürnberg, DE;
Gerhard Reichinger, Rednitzhembach, DE;
Georg Kodl, Nürnberg, DE;
Leoni Bordnetz-Systeme GmbH & Co. KG, Nuremberg, DE;
Abstract
A pressure sensor includes an optical waveguide having an optical fiber with a refractive index n, located in a fiber guide with a refractive index n, forming an intermediate region. A medium with a refractive index nis located in the intermediate region. The refractive indices correspond to the relation n>n>n. When subjected to a pressure, the fiber guide is pressed against the optical fiber such that the condition for the total reflection required for the normal optical waveguidance in the optical waveguide is no longer fulfilled, and attenuation takes place. The attenuation is evaluated in a corresponding control unit. The pressure sensor is especially provided for an anti-pinch device in the motor vehicle industry.