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:
May. 15, 2018

Filed:

Sep. 22, 2015
Applicant:

Photonis France, Brive, FR;

Inventors:

Damien Letexier, Brive, FR;

Franck Robert, Brive, FR;

Assignee:

PHOTONIS FRANCE, Brive, FR;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01J 31/49 (2006.01); H01J 31/56 (2006.01); H01J 31/50 (2006.01);
U.S. Cl.
CPC ...
H01J 31/56 (2013.01); H01J 31/508 (2013.01); H01J 2231/50026 (2013.01);
Abstract

Image acquisition device comprising a photocathode, converting an incident flux of photons into a flux of electrons, a sensor, and a processor. The device according to the invention comprises a matrix of elementary filters, each associated with at least one pixel of the sensor, the matrix being disposed upstream of the photocathode. The matrix comprises primary color filters, and transparent filters, termed panchromatic filters. The processor is configured to: calculate a quantity, termed a useful quantity (), for determining whether at least one zone of the sensor is in conditions of weak or strong illumination, the useful quantity being representative of a mean surface flux of photons or of electrons which is detected on a set of panchromatic pixels of the sensor; forming, only if the zone is in conditions of strong illumination, an image of the zone on the basis of the primary color pixels of this zone.


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