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:
Sep. 07, 2004
Filed:
Sep. 22, 2002
Kurt Tiefenthaler, Zurich, CH;
Artificial Sensing Instruments ASI AG, Zurich, CH;
Abstract
The optical sensor contains an optical waveguide ( ) with a substrate ( ), waveguiding material ( ), a cover medium ( ) and a waveguide grating structure ( ). By means of a light source ( ), light can be emitted to the waveguide grating structure ( ) from the substrate side and/or from the cover medium side. ( ). With means of detection ( ), at least two differing light proportions ( ) radiated from the waveguide ( ) can be detected. For carrying out a measurement, the waveguide can be immovably fixed relative to the light source ( ) and the means of detection ( ). The waveguide grating structure ( ) itself consists of one or several waveguide grating structure units ( ), which if so required can be equipped with (bio-)chemo-sensitive layers. The sensor permits the generation of absolute measuring signals.