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:
May. 26, 2009
Filed:
Apr. 02, 2007
Wojtek J. Bock, Ottawa, CA;
Jianjun MA, Gatineau, CA;
Wojtek J. Bock, Ottawa, CA;
Jianjun Ma, Gatineau, CA;
Universite du Quebec en Outaouais, Gatineau, Quebec, CA;
Abstract
A fiber optic probe for capable of simultaneously enhancing fluorescent emission collection and reducing stray excitation light noise levels while detecting the presence or absence of one or more substances within a medium. The probe includes an illuminating optical fiber for guiding excitation light from a light source to be launched from an end face of the illuminating optical fiber. A film or an immersion medium emits light when illuminated by the excitation light. The emitted light has a central wavelength that is different than a central wavelength of the excitation light. A receiving optical fiber receives and guides the emitted light. The receiving fiber may be a photonic crystal fiber having an end portion which is a solid segment of glass for improved light collection efficiency. A lens may be provided at the end of the receiving fiber. A detector detects light from the receiving optical fiber.