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:
Mar. 04, 2014
Filed:
Jun. 01, 2011
Ryan E. Da Re, Bristow, VA (US);
Howard N. Lavalley, Albuquerque, NM (US);
Jeromy Paul Rezac, Bel Air, MD (US);
James E. Pendell Jones, Baltimore, MD (US);
Ryan E. Da Re, Bristow, VA (US);
Howard N. LaValley, Albuquerque, NM (US);
Jeromy Paul Rezac, Bel Air, MD (US);
James E. Pendell Jones, Baltimore, MD (US);
Exelis Inc., McLean, VA (US);
Abstract
A method of performing Raman spectroscopy, and an apparatus for performing the method, including irradiating, with laser light, a trace amount of a target substance disposed on a painted surface, receiving reflected laser light and a Raman return signal from the trace amount of the target substance, processing the Raman return signal using, at least, a spectrograph and camera to obtain a Raman signature for the target substance, and identifying the target substance based on the Raman signature for the target substance and a database of Raman signatures. The laser light wavelength may be selected based on a ratio of Raman return signal power to fluorescence power.