ALEXANDRIA, Va., June 5 -- United States Patent no. 12,276,864, issued on April 15, was assigned to JIANGXI JINGCHAO OPTICAL Co. LTD. (Nanchang, China).

"Optical system, lens module, and terminal device" was invented by Jian Yang (Jiangxi, China), Wenyan Zhang (Jiangxi, China), Ming Li (Jiangxi, China) and Hairong Zou (Jiangxi, China).

According to the abstract* released by the U.S. Patent & Trademark Office: "An optical system, a lens module, and a terminal device are provided. The optical system includes a first lens, a second lens, a third lens, a fourth lens, a fifth lens, and a sixth lens. The first lens with a positive refractive power has an object-side surface which is convex at an optical axis. The second lens with a negative ref...