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:
Nov. 12, 2019

Filed:

Nov. 13, 2015
Applicant:

Nederlandse Organisatie Voor Toegepast-natuurwetenschappelijk Onderzoek Tno, The Hague, NL;

Inventors:

Huibert Visser, The Hague, NL;

Hedser van Brug, The Hague, NL;

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G01J 3/45 (2006.01); G01J 3/36 (2006.01); G01J 3/42 (2006.01); G01J 3/447 (2006.01); G01J 3/453 (2006.01); G01N 21/31 (2006.01); G01N 21/39 (2006.01); G01N 33/00 (2006.01);
U.S. Cl.
CPC ...
G01J 3/45 (2013.01); G01J 3/36 (2013.01); G01J 3/42 (2013.01); G01J 3/447 (2013.01); G01J 3/4531 (2013.01); G01J 3/4532 (2013.01); G01N 21/31 (2013.01); G01N 21/314 (2013.01); G01N 21/39 (2013.01); G01N 33/0027 (2013.01);
Abstract

The invention pertains to a method of spatially resolved detection of a gas substance in an area, comprising: imaging the area on a first image sensor, in a wavelength spectrum including an absorption wavelength peak corresponding to said gas substance; imaging the area on a second image sensor, to provide for each pixel of the first image a corresponding pixel of the second image for respective on- and off-peak wavelengths relative to the absorption wavelength; and providing a difference image as a function of the two pixel values of first and second image sensors to produce an image of the spatially resolved absorption wavelength corresponding to said gas substance.


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