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. 13, 2007
Filed:
Aug. 27, 2004
Roberto Racca, Victoria, CA;
James Ivor Symons, New Westminster, CA;
Roberto Racca, Victoria, CA;
James Ivor Symons, New Westminster, CA;
Power Diagnostic Technologies Ltd., New Westminster, CA;
Abstract
The invention relates to an imager system for imaging of a plume of a fugitive gas, dependent upon an electromagnetic wavelength absorption characteristic of the gas. A bi-spectral selector assembly houses first and second filters in separate first and second optical paths for transmittal of electromagnetic energies emanating from the scene of interest. The first and second filters have adjacent mutually exclusive narrow band pass characteristics only one of which corresponds to the electromagnetic wavelength absorption characteristic of the gas. An imager captures first and second image data having traversed the first and second filters in a frame which is then processed by correlating the image data to provide displayable data including an indication of any plume of the fugitive gas. The data is displayed in real time. In one example a CCD video camera provides picture data which is displayed with the image of the plume of gas pasted thereupon.