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:
Jan. 26, 1999
Filed:
Apr. 11, 1997
Applicant:
Inventors:
Kent A Murphy, Troutville, VA (US);
Mark E Jones, Blacksburg, VA (US);
Assignee:
F&S, Inc., Blacksburg, VA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G02B / ; G01J / ;
U.S. Cl.
CPC ...
385 12 ; 385 15 ; 385 37 ; 385123 ; 385126 ; 385127 ; 385141 ; 25022714 ; 25022718 ; 25022723 ;
Abstract
An optical sensor is provided. The optical sensor comprises an optical waveguide, at least one long period grating disposed within the optical waveguide and a reactive coating positioned in an operable relationship to the long period grating wherein the reactive coating causes the long period grating to produce a wavelength transmission spectrum functionally dependent on a parameter sensed. Such sensors may be used to measure physical, electrical and chemical parameters within a single system.