ALEXANDRIA, Va., July 30 -- United States Patent no. 12,372,808, issued on July 29, was assigned to Jiangsu Conant Optical Co. Ltd. (Nantong, China) and Shanghai Conant Optical Co. Ltd. (Shanghai).
"Spectacle lens" was invented by Chuanbao Wang (Nantong, China), Hongbin Fan (Nantong, China) and Qingbo Yan (Nantong, China).
According to the abstract* released by the U.S. Patent & Trademark Office: "A spectacle lens includes a first region having a refractive power for ametropia based on corrected visual acuity; and a second region having an unfocused imaging function; the first region and the second region being disposed on a lens surface, the second region including a plurality of sub-regions independent of each other, and the first regio...