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:
Jul. 12, 2022
Filed:
Apr. 24, 2019
Applicant:
National Research Council of Canada, Ottawa, CA;
Inventors:
Paul Bouchard, Boucherville, CA;
Mohamad Sabsabi, Boucherville, CA;
Christian Padioleau, Boucherville, CA;
Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G01J 3/28 (2006.01); G01J 3/18 (2006.01); G01J 3/02 (2006.01);
U.S. Cl.
CPC ...
G01J 3/1804 (2013.01); G01J 3/0208 (2013.01); G01J 3/0256 (2013.01); G01J 3/1838 (2013.01); G01J 2003/1861 (2013.01);
Abstract
Spectrometer designs are provided. The spectrometer includes two planar diffraction gratings disposed in a cascade, without intervening optics therebetween. Advantageously, the described configurations may promote both a high throughput and a high resolution, enabling the design of a portable device having sufficient resolution for on-site use or in the laboratory. In some implementations, two different secondary diffraction channels may be provided.