US Patent Issued to Essilor International on July 1 for "Optical article having a reflective coating with high abrasion-resistance" (French, Thai Inventors)

ALEXANDRIA, Va., July 3 -- United States Patent no. 12,345,905, issued on July 1, was assigned to Essilor International (Charenton-le-Pont, France).

"Optical article having a reflective coating with high abrasion-resistance" was invented by William Trottier-Lapointe (Charenton-le-Pont, France), Alexis Theoden (Charenton-le-Pont, France), Philippe Romand (Charenton-le-Pont, France) and Surin Maidam (Bangkok).

According to the abstract* released by the U.S. Patent & Trademark Office: "Disclosed is an optical article including a substrate having at least one main face coated with a reflective coating including a stack of at least one high refractive index layer having a refractive index higher than 1.55 and at least one low refractive index ...