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:
Oct. 29, 2019
Filed:
Sep. 26, 2013
Essilor International (Compagnie Generale D'optique), Charenton-le-Pont, FR;
Vincent Anatole, Charenton-le-Pont, FR;
Cecile Pietri, Charenton-le-Pont, FR;
ESSILOR INTERNATIONAL, Charenton-le-Pont, FR;
Abstract
A method for manufacturing an ophthalmic lens (), includes a marking step for producing permanent technical marks () on the lens, which includes a body (), a first surface () and a second surface () opposite the first surface (); the step of additive manufacturing (-) of the body and the first and second surfaces, by depositing a plurality of first predetermined volume elements of a first material having a first complex index of refraction (), in order to obtain first and second optical surfaces, respectively, of the first and second surfaces; and the step of additive manufacturing () of the marks by depositing, during the deposition of a plurality of the first volume elements of the first material, at least one second predetermined volume element of a second material having a second complex index of refraction () other than the first complex index of refraction of the first material.