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:
Jan. 08, 2013
Filed:
Dec. 04, 2008
Applicants:
Bruno Fermigier, Charenton le Pont, FR;
Matthieu Koscher, Charenton le Pont, FR;
Inventors:
Bruno Fermigier, Charenton le Pont, FR;
Matthieu Koscher, Charenton le Pont, FR;
Assignee:
Essilor International (compagnie Generale d'optique), Charenton le Pont, FR;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G02C 7/14 (2006.01); G02C 7/06 (2006.01); G02C 7/02 (2006.01);
U.S. Cl.
CPC ...
Abstract
Disc designed to be attached to a concave curved surface of an optical component to modify an optical power of said component, the disc comprising a Fresnel lens made up of a series of Fresnel regions of spherical general shape, in which the changes of height between successive Fresnel regions are located on a concave face of the disc, and in which said Fresnel regions are made out in a special distribution. A disc of this kind maintains the dioptric quality without introducing distortions.