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:
Nov. 20, 2007
Filed:
Jan. 13, 2006
Geoffroy Deltel, Antony, FR;
Sylvain Faure, Paris, FR;
Denis Guettier, Charny, FR;
Philippe Patry, Fontenay Aux Roses, FR;
Geoffroy DelTel, Antony, FR;
Sylvain Faure, Paris, FR;
Denis Guettier, Charny, FR;
Philippe Patry, Fontenay Aux Roses, FR;
Sagem Defense Securite, Paris, FR;
Abstract
An optronic observation device including a detector having a photocathode and a sensor arranged to receive an incident light beam. The device also including a switch to position an optical element opposite the detector in the pathway of the incident beam or to retract the optical element and a focusing element to focus an incident ray on the photocathode when the optical element is in a retracted position. When the optical element is positioned opposite the detector, it is able to focus the beam on the sensor and to filter the beam spectrally to block all or part of the wavelengths for which the responsiveness of the photocathode is greater than a given threshold.