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. 15, 2014
Filed:
Oct. 08, 2010
Patrice Camy, Caen, FR;
Jean-louis Doualan, Rots, FR;
Virginie Nazabal, Rennes, FR;
Centre National de la Recherche Scientifique, Paris, FR;
Abstract
The invention relates to a chemical species optical sensor comprising: a fluorescent source () of incoherent infrared rays, including a chalcogenide glass matrix, doped with rare earth ions and combined with a pump source by means of a first optical fiber (); and at least one infrared ray detector (), provided with a spectral selection device () and set up to detect the rays that are emitted by said fluorescent source and have passed through a detection area (), said detector including a fluorescent element () formed by a chalcogenide glass matrix that is doped with rare earth ions and combined with a second pump source () by means of a second optical fiber (). Such a sensor can be used for differentially detecting a chemical species, and in particular CO.