ALEXANDRIA, Va., Feb. 17 -- United States Patent no. 12,554,186, issued on Feb. 17, was assigned to Formovie(Chongqing)Innovative Technology Co. Ltd. (Chongqing, China).
"Projection device" was invented by Quanyou Hu (Chongqing, China), Chanhao Chen (Chongqing, China), Hao Jiang (Chongqing, China) and Yingduo Bi (Chongqing, China).
According to the abstract* released by the U.S. Patent & Trademark Office: "A projection device includes a housing and a light engine, a circuit board, and a fan that are arranged in the housing. The bottom wall of the housing is provided with an air inlet hole facing the light engine and an air outlet hole. A first gap is formed between a bottom side of the light engine and the bottom wall of the housing, and ...