ALEXANDRIA, Va., Feb. 26 -- United States Patent no. 12,235,525, issued on Feb. 25, was assigned to Essilor International (Charenton-le-pont, France).
"Polarized lenses comprising mix of NIR dyes for broad NIR protection" was invented by Haifeng Shan (Dallas) and Hao-Wen Chiu (Dallas).
According to the abstract* released by the U.S. Patent & Trademark Office: "Disclosed are optical elements and the methods of producing the same. The optical element contains two or more near infrared absorbers mixed in an optical substrate, and one or more functional film disposed on the optical substrate. The method of producing the optical element comprises mixing two near infrared absorbers with different near infrared wavelengths absorption ranges and ...