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:
Jul. 14, 2026

Filed:

Feb. 14, 2024
Applicant:

Lightsense Technology, Inc., Tucson, AZ (US);

Inventors:

John Coates, Yarmouth Port, MA (US);

Wade Poteet, Vail, AZ (US);

Terje Skotheim, Tucson, AZ (US);

Assignee:

Lightsense Technology, Inc., Tucson, AZ (US);

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G01N 21/3504 (2014.01); G01N 21/01 (2006.01); G01N 21/35 (2014.01);
U.S. Cl.
CPC ...
G01N 21/3504 (2013.01); G01N 2021/0106 (2013.01); G01N 2021/3595 (2013.01); G01N 2201/0696 (2013.01); G01N 2201/1056 (2013.01);
Abstract

An optical spectral sensing system that provides a full-range mid-IR FTIR based measurement for gases and vapors. The system features a small interferometer module which is integrated with a sample cell and solid-state source, that has an optimized optical path matched to the intended concentration ranges for the gas/vapor measurements. The concentration ranges targeted are from % level for high targeted gas concentrations, as provided by short-pathlength gas cells, to parts-per-million (ppm) and for certain gases high parts-per-billion (ppb) for low trace targeted gas concentrations, provided by long-pathlength gas cells. The optics and opto-mechanical components selected are able to provide a spectral range of 400 cmto 5000 cm, with nominal spectral resolutions of 4 cmto 16 cm, with the potential to extend the resolution from 2 cmout to 32 cm. The electronics are optimized to support both the range and spectral resolution based the use of a 'universal' mid-IR detector.


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