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. 02, 2025
Filed:
Sep. 24, 2019
Essilor International, Charenton le Pont, FR;
Alexandre Gourraud, Charenton le Pont, FR;
Essilor International, Charenton-le-Pont, FR;
Abstract
A method for manufacturing an optical lens by additive manufacturing, includes steps of: depositing a first layer having a first thickness; —depositing a second layer, having a second thickness, onto the first layer, the second layer forming a first asperity with the first layer; depositing a third layer having a third thickness; depositing a fourth layer having a fourth thickness onto the third layer, thereby forming an intermediate optical element, the fourth layer forming a second asperity with the third layer; and smoothing the first asperity and the second asperity on the intermediate optical element, thereby forming the optical lens. The second thickness and the fourth thickness are different. A corresponding intermediate optical element is also described.