US Patent Issued to Essilor International on Dec. 2 for "Method for manufacturing an optical lens by additive manufacturing and corresponding intermediate optical element" (French Inventor)

ALEXANDRIA, Va., Dec. 2 -- United States Patent no. 12,485,633, issued on Dec. 2, was assigned to Essilor International (Charenton-le-Pont, France).

"Method for manufacturing an optical lens by additive manufacturing and corresponding intermediate optical element" was invented by Alexandre Gourraud (Charenton le Pont, France).

According to the abstract* released by the U.S. Patent & Trademark Office: "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 ...