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:
Aug. 24, 2021
Filed:
Sep. 11, 2018
Applicant:
Valeo Vision, Bobigny, FR;
Inventors:
Antoine De Lamberterie, Bobigny, FR;
Samira Mbata, Bobigny, FR;
Nicolas Lefaudeux, Bobigny, FR;
Thomas Canonne, Bobigny, FR;
Van-Thai Hoang, Bobigny, FR;
Vincent Dubois, Bobigny, FR;
Francois-Xavier Amiel, Bobigny, FR;
Assignee:
VALEO VISION, Bobigny, FR;
Primary Examiner:
Int. Cl.
CPC ...
G02B 3/08 (2006.01); F21V 5/04 (2006.01); F21S 41/275 (2018.01); F21S 41/255 (2018.01); G02B 5/18 (2006.01); G02B 5/04 (2006.01);
U.S. Cl.
CPC ...
G02B 3/08 (2013.01); F21S 41/255 (2018.01); F21S 41/275 (2018.01); F21V 5/045 (2013.01); G02B 5/1814 (2013.01); G02B 5/1876 (2013.01); G02B 5/04 (2013.01);
Abstract
A Fresnel lens with Fresnel prisms having a first facet, called the main facet, and a second facet, called the draft facet, the draft facet making a draft angle to the optical axis, the draft angle being variable along at least one Fresnel prism, so that the draft angle is higher on one side of the lens than on the other.