ALEXANDRIA, Va., July 15 -- United States Patent no. 12,663,604, issued on June 23, was assigned to ZHEJIANG SUNNY OPTICS Co. LTD (Yuyao City, China).

"Optical lens assembly" was invented by Xianchao Shi (Yuyao City, China), Qian Li (Yuyao City, China), Fang Zhang (Yuyao City, China), Fujian Dai (Yuyao City, China) and Liefeng Zhao (Yuyao City, China).

According to the abstract* released by the U.S. Patent & Trademark Office: "An optical lens assembly. The optical lens assembly comprises a lens barrel, and first to sixth lenses. The refractive power of the fifth lens and the refractive power of the sixth lens are positive-negative opposite, and an image-side surface of the fifth lens is a convex surface. The lens barrel further comprises ...