ALEXANDRIA, Va., July 15 -- United States Patent no. 12,665,990, issued on June 23, was assigned to Formovie (Chongqing) Innovative Tech. Co. Ltd. (Chongqing, China).
"Light engine and projection device" was invented by Yuyao Wang (Chongqing, China), Lele Song (Chongqing, China), Hao Jiang (Chongqing, China) and Dazhi Tan (Chongqing, China).
According to the abstract* released by the U.S. Patent & Trademark Office: "A light engine includes a housing, an optical assembly, a heat exchange device, and a fan. A first lens, a second lens, and the housing cooperatively define a first closed chamber. The first closed chamber includes an air-cooling chamber, a first heat exchange chamber, and a second heat exchange chamber. The first heat exchang...