US Patent Issued to Essilor International, Corporation de l'Ecole Polytechnique de Montreal on March 17 for "Optical article having a multilayered antireflective coating including an encapsulated metal film" (Canadian, French Inventors)

ALEXANDRIA, Va., March 17 -- United States Patent no. 12,578,508, issued on March 17, was assigned to Essilor International (Charenton-le-Pont, France) and Corporation de l'Ecole Polytechnique de Montreal (Montreal).

"Optical article having a multilayered antireflective coating including an encapsulated metal film" was invented by Helene Maury (Charenton-le-pont, France), Antonin Riera (Montreal), Bill Baloukas (Montreal), Oleg Zabeida (Montreal) and Ludvik Martinu (Montreal).

According to the abstract* released by the U.S. Patent & Trademark Office: "This invention relates to an optical article comprising a transparent substrate with a front main face and with a rear main face, at least one of the main faces being coated with a multilaye...