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. 17, 2017
Filed:
Nov. 15, 2012
Essilor International (Compagnie Generale D'optique), Charenton le Pont, FR;
Fabien Muradore, Charenton le Pont, FR;
Hélène De Rossi, Charenton le Pont, FR;
ESSILOR INTERNATIONAL (COMPAGNIE GENERALE D'OPTIQUE), Charenton le Pont, FR;
Abstract
The invention relates to a method for determining an ophthalmic lens wherein: a first and a second reference axes are determined, the first reference axis is comprised between [γ−20°, γ+20° ] with γbeing the mean axis of astigmatism over a first temporal portion, and the second reference axis is comprised between [γ−20°, γ+20° ] with γbeing the mean axis of astigmatism over a second nasal portion; a combined reference axis is determined as a linear combination of the first and second reference axes; over the first portion, the sphere value along the combined reference axis is greater than the sphere value along a perpendicular axis to the combined reference axis; and over the second portion, the sphere value along the combined reference axis is greater than the sphere value along a perpendicular axis to the combined reference axis.