US Patent Issued to Zhejiang Sunny Optics on June 3 for "Optical imaging system" (Chinese Inventors)

ALEXANDRIA, Va., June 4 -- United States Patent no. 12,320,959, issued on June 3, was assigned to Zhejiang Sunny Optics Co. Ltd (Yuyao, China).

"Optical imaging system" was invented by Zhanfei Zhang (Yuyao, China), Lin Huang (Yuyao, China), Xin Zhou (Yuyao, China), Fujian Dai (Yuyao, China) and Liefeng Zhao (Yuyao, China).

According to the abstract* released by the U.S. Patent & Trademark Office: "An optical imaging system includes, sequentially from an object side to an image side along an optical axis, a first lens (L1) having a positive refractive power and a convex object-side surface (S1); a second lens (L2) having a refractive power; a third lens (L3) having a refractive power; a fourth lens (L4) having a positive refractive power, ...