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:
Dec. 04, 2018
Filed:
Mar. 18, 2015
Essilor International (Compagnie Generale D'optique), Charenton-le-Pont, FR;
Berangere Granger, Charenton-le-Pont, FR;
Gilles Baillet, Charenton-le-Pont, FR;
ESSILOR INTERNATIONAL, Charenton-le-Pont, FR;
Abstract
A process for manufacturing a negative ophthalmic lens having a central portion () and a peripheral portion () includes the steps of forming the central portion () by forming voxels of a first material having a first refractive index, the central portion having a peripheral zone at its periphery; and forming the peripheral portion () from this peripheral zone and contiguous to the perimeter of this peripheral zone, by forming voxels of at least one second material having a second refractive index, the second refractive index being strictly higher than the first refractive index.