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:
Aug. 28, 2018
Filed:
Dec. 11, 2015
Applicant:
Bertin Technologies, Montigny le Bretonneux, FR;
Inventors:
Nathalie Morin, Trets, FR;
Philippe Bernascolle, Tourves, FR;
Franck Fervel, Peynier, FR;
Guillaume Druart, Palaiseau, FR;
Assignee:
BERTIN TECHNOLOGIES, Montigny le, FR;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G01N 21/35 (2014.01); G01N 21/3518 (2014.01);
U.S. Cl.
CPC ...
G01N 21/3518 (2013.01);
Abstract
An optical filtering device, in particular for remote gas detection, including a member comprising a tubular passage accommodating a plurality of reflective structures capable of reflecting infrared wavelengths, said structures being elongated along an axis of the tubular passage and arranged around the axis. The reflective structures comprise means of filtering by absorption of bands of different wavelengths located in the infrared spectral band.