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:
Nov. 20, 2018
Filed:
Jun. 06, 2014
Essilor International (Compagnie Generale D'optique), Charenton-le-Pont, FR;
Loic Quere, Charenton-le-Pont, FR;
Alexandre Gourraud, Charenton-le-Pont, FR;
Pascal Allione, Charenton-le-Pont, FR;
Cedric Begon, Charenton-le-Pont, FR;
Gilles Le Saux, Charenton-le-Pont, FR;
ESSILOR INTERNATIONAL, Charenton-le-Pont, FR;
Abstract
A process for manufacturing an ophthalmic lens having at least one optical function, includes the following steps: additively manufacturing () an intermediate optical element by depositing a plurality of preset volume elements of at least one material having a preset refractive index, the intermediate optical element including a target ophthalmic lens and a thickness allowance consisting of a portion of the plurality of volume elements; and subtractively manufacturing (), by machining, the target ophthalmic lens from the intermediate optical element, the machining being carried out in a preset sequence, of at least one step, the preset sequence making it possible to subtract the thickness allowance, the additive manufacturing step () including a step of determining a manufacturing setpoint for the intermediate optical element in which the thickness allowance is determined depending on the preset sequence defined in the subtractive manufacturing step ().