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. 09, 2016
Filed:
Jun. 28, 2013
Applicant:
Essilor International (Compagnie Generale D'optique), Charenton le Pont, FR;
Inventors:
Björn Drobe, Charenton le Pont, FR;
Paulyn Ng Hwei Kien, Charenton le Pont, FR;
Aude Contet, Charenton le Pont, FR;
Assignee:
ESSILOR INTERNATIONAL (COMPAGNIE GENERALE D'OPTIQUE), Charenton le Pont, FR;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G02C 7/02 (2006.01); G02C 7/06 (2006.01);
U.S. Cl.
CPC ...
G02C 7/027 (2013.01); G02C 7/022 (2013.01); G02C 7/063 (2013.01);
Abstract
The visual perception of a lens wearer is not only along the gaze direction, but also has a non-zero transverse extension, which is called perceptual span. Perceptual span is skewed to extend further in the reading direction, i.e., the line portion to be read next relative to the line portion that was just read. A technique is provided that determines a pair of progressive ophthalmic lenses that take such perceptual span into account.