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:
Apr. 20, 2010
Filed:
May. 28, 2008
Benoît Dupont, Grenoble, FR;
Michel Vilain, Saint-Georges de Commiers, FR;
Benoît Dupont, Grenoble, FR;
Michel Vilain, Saint-Georges de Commiers, FR;
ULIS, Veurey Voroize, FR;
Abstract
A device for detecting electromagnetic radiation, especially infrared radiation, including an array of elementary bolometers which are sensitive to the incident radiation and are referred to as 'active' bolometers and an additional row of bolometers which are substantially insensitive to the radiation and are referred to as 'blind' bolometers. The active and blind bolometers are formed on a substrate in which a read circuit is produced for sequential addressing of each of the rows of the array and the row of blind bolometers, each of the bolometers in the same row being biased simultaneously. The read circuit includes a source for producing a reference current (I) on the basis of an additional blind bolometer which is also formed on the substrate and means of copying the reference current (I) to each of the columns of the array consisting of a current mirror.