US Patent Issued to Essilor International on July 29 for "Method and instrument for providing at least one eye of a subject with a first refraction correction and with a second refraction correction to be compared with each other" (French Inventors)

ALEXANDRIA, Va., July 30 -- United States Patent no. 12,369,790, issued on July 29, was assigned to Essilor International (Charenton-le-Pont, France).

"Method and instrument for providing at least one eye of a subject with a first refraction correction and with a second refraction correction to be compared with each other" was invented by Gildas Marin (Charenton-le-Pont, France), Adele Longo (Charenton-le-Pont, France), Guillaume Giraudet (Charenton-le-Pont, France), Stephane Boutinon (Charenton-le-Pont, France) and Philippe Pinault (Charenton-le-Pont, France).

According to the abstract* released by the U.S. Patent & Trademark Office: "A method and associated instrument in which an optical system is switched from a first to a second refra...