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.

Date of Patent:
Apr. 18, 2023

Filed:

Feb. 18, 2022
Applicant:

California Institute of Technology, Pasadena, CA (US);

Inventors:

Axel Scherer, Barnard, VT (US);

Taeyoon Jeon, Pasadena, CA (US);

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G01J 3/28 (2006.01); H04N 5/33 (2023.01); G01J 3/02 (2006.01);
U.S. Cl.
CPC ...
G01J 3/2823 (2013.01); G01J 3/0208 (2013.01); G01J 3/0291 (2013.01); H04N 5/33 (2013.01); G01J 2003/2826 (2013.01);
Abstract

An infrared spectrometer for operation in the mid-infrared spectral range is presented, where the spectrometer includes a Bragg-mirror-based spectral filter that is operative for providing an interrogation signal whose spectral content is dispersed along a first direction at a filter aperture. The filter aperture is imaged through a sample by a thermal-imaging camera to create a focused image that is based on the interrogation signal and the absorption characteristics of the sample. As a result, embodiments in accordance with the present disclosure can be smaller, less complex, and less expensive than infrared spectrometers known in the prior art.


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