ALEXANDRIA, Va., Sept. 17 -- United States Patent no. 12,416,744, issued on Sept. 16, was assigned to JIANGSU CONANT OPTICAL CO., LTD; (Nantong, China) and SHANGHAI CONANT OPTICAL Co. LTD (Shanghai).
"1.74 refractive index polarized resin lens and preparation method thereof" was invented by Chuanbao Wang (Nantong, China), Yang Li (Nantong, China), Wenyou Li (Nantong, China) and Tianniao Huang (Nantong, China).
According to the abstract* released by the U.S. Patent & Trademark Office: "A 1.74 refractive index polarized resin lens and a preparation method thereof are provided. The lens includes upper and lower resin material layers with a refractive index of 1.74, a PVA polarizing film layer is arranged between the two resin material layers...