ALEXANDRIA, Va., June 4 -- United States Patent no. 12,318,884, issued on June 3, was assigned to DALIAN UNIVERSITY OF TECHNOLOGY (Liaoning, China) and DALIAN UNIVERSITY OF TECHNOLOGY NINGBO RESEARCH INSTITUTE (Zhejiang, China).
"Double-sided polishing method for optical lens" was invented by Jiang Guo (Liaoning, China), Bo Pan (Liaoning, China), Pengfei Zhang (Liaoning, China) and Kangle Wang (Liaoning, China).
According to the abstract* released by the U.S. Patent & Trademark Office: "A double-sided polishing method for an optical lens belongs to the technical field of ultra-precision machining. In the double-sided polishing method, upper and lower surfaces of the lens are polished simultaneously by arranging abrasive tools on upper and...