ALEXANDRIA, Va., April 7 -- United States Patent no. 12,596,268, issued on April 7, was assigned to Essilor International (Charenton-le-Pont, France).
"Method of calculating a finished lens" was invented by Florence Morel (Charenton-le-Pont, France) and Thierry Baudart (Charenton-le-Pont, France).
According to the abstract* released by the U.S. Patent & Trademark Office: "A finished lens with a predetermined shape, including one front face, one back face and a perimeter corresponding to the shape, including a prescription part on the lens that together with the front face fulfills prescription data of a wearer and a peripheral part on the lens, the prescription part being delimited by a thickness curve and the peripheral part extending fr...