ALEXANDRIA, Va., June 12 -- United States Patent no. 12,297,978, issued on May 13, was assigned to Dongguan Kangjuhong Optoelectronics Technology Co. Ltd. (Guangdong, China).

"Multi-angle adjustable spot-flood light" was invented by Hu Long (Dongguan, China).

According to the abstract* released by the U.S. Patent & Trademark Office: "The present invention is applicable to the technical field of lamp products, and provides a multi-angle adjustable spot-flood light, comprising a lamp holder, a light source, an optical assembly and an angle adjustment mechanism. Wherein the optical assembly comprises a first optical lens and a second optical lens spaced from and parallel to the first optical lens, a first optical structure is arranged on a l...