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:
Jun. 02, 2026
Filed:
Dec. 10, 2021
Applicant:
Valeo Vision, Bobigny, FR;
Inventor:
Sidahmed Beddar, Bobigny, FR;
Assignee:
Valeo Vision, Bobigny, FR;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H05B 45/56 (2020.01); H05B 45/18 (2020.01);
U.S. Cl.
CPC ...
H05B 45/56 (2020.01); H05B 45/18 (2020.01);
Abstract
The invention relates to a method for controlling a pixelated light source for a motor vehicle. The method makes it possible to prevent thermal runaway and premature ageing of the elementary pixels of the source independently of the projected light levels. By dynamically adapting the electric current intensities at the elementary light sources, the control method provides protection for the semiconductor junctions of the pixels of the pixelated light source in order to increase their lifespan and avoid visible defects in a beam projected onto the road due to thermal runaway or premature ageing of the semiconductor junctions.