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:
Feb. 19, 2013
Filed:
Jun. 09, 2010
Rulon Eugene Simmons, Rochester, NY (US);
Jarett Levi Bartholomew, Victor, NY (US);
Rulon Eugene Simmons, Rochester, NY (US);
Jarett Levi Bartholomew, Victor, NY (US);
Exelis, Inc., McLean, VA (US);
Abstract
The present invention includes systems and methods for quantitative and qualitative imaging of gases, vapors, fumes, and the like. In one embodiment, the system uses a moving, or a rotating filter for alternately capturing on-line and off-line images of a scene that potentially includes the target gas of interest. The moving, or rotating filter includes at least two filter segments for transmitting (a) wavelengths corresponding to a spectroscopic absorption feature for on-line elements of the target gas, and (b) nearby wavelengths not corresponding to a spectroscopic absorption feature for off-line elements of the target gas. An image processor executes an algorithm for transforming the collected on-line and off-line data, corresponding to different pixels in the imaging array, into an image map of path-integrated concentration, or concentration path lengths (CPLs). The systems and methods of the invention do not use active light sources to illuminate the target gas. Instead, imaging and processing is done entirely using passive received energy from the target gas.