公开(公告)号：US10060848B2

公开(公告)日：2018-08-28

申请号：US15534571

申请日：2015-12-11

Applicant: BERTIN TECHNOLOGIES

Inventor： Nathalie Morin ,  Philippe Bernascolle ,  Franck Fervel ,  Guillaume Druart

IPC: G01N21/35 ,  G01N21/3518

CPC classification number: G01N21/3518 ,  G01J3/0205 ,  G01J3/36 ,  G01J2003/1213 ,  G02B5/008 ,  G02B5/22 ,  G02B17/006 ,  G02B27/106 ,  G02B27/1066

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.

公开(公告)号：US09726600B2

公开(公告)日：2017-08-08

申请号：US14646531

申请日：2013-11-20

Applicant: Bertin Technologies

Inventor： Franck Fervel ,  Philippe Bernascolle

IPC: G01N21/3504 ,  G01N33/00 ,  G01N21/47 ,  G01J3/42 ,  G02B26/08

CPC classification number: G01N21/3504 ,  G01J3/42 ,  G01N21/47 ,  G01N33/0031 ,  G01N33/0036 ,  G02B26/0833

Abstract: A detector device for optically detecting a gas in a zone of space under observation, the device comprising a camera and means for continuously detecting at least one gas in the observed zone by analyzing absorbance in a plurality of different spectral bands. The device further comprises a matrix of micromirrors that are individually steerable between at least two positions, in a first of which they reflect the radiant flux coming from the observed zone to the camera for detecting gas in said spectral bands, and in a second of which they reflect the radiant flux coming from the observed zone to a Fourier transform infrared spectroscope.