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:
Dec. 26, 2017
Filed:
Jun. 23, 2016
Applicant:
Spi—security Protection International / Securite Protection Internationale, Laval, CA;
Inventors:
Yasser Chiniforooshan, Ottawa, CA;
Wojtek Bock, Ottawa, CA;
Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G02B 6/26 (2006.01); G01N 33/20 (2006.01); G02B 6/14 (2006.01); G02B 6/02 (2006.01); G01N 21/64 (2006.01);
U.S. Cl.
CPC ...
G01N 33/20 (2013.01); G01N 21/6404 (2013.01); G02B 6/0208 (2013.01); G02B 6/14 (2013.01); G01N 2021/6417 (2013.01); G01N 2021/6484 (2013.01);
Abstract
There is described a fiber-optic sensor for measuring a light signal from a fluorescible sample comprising heavy metal ions, for example. The fiber-optic sensor comprises an optical fiber having a side surface by which the light signal from the fluorescible sample is inputted. The optical fiber is corrugated to form at least two gratings on the side surface of the optical fiber. Each grating comprises periodically longitudinally spaced-apart valleys on the surface of the optical fiber, and is longitudinally spaced apart from any other grating of the at least two gratings.