ALEXANDRIA, Va., Aug. 25 -- United States Patent no. 12,720,024, issued on Aug. 25, was assigned to Coretronic Corp. (Hsin-Chu, Taiwan).
"Projection device and auto focus method" was invented by Yi-Jun Liao (Hsin-Chu, Taiwan), Kun-Hong Chen (Hsin-Chu, Taiwan), Yu-Hsuan Hsieh (Hsin-Chu, Taiwan) and Yun-Shih Chen (Hsin-Chu, Taiwan).
According to the abstract* released by the U.S. Patent & Trademark Office: "A projection device, including a projection module, a projection lens, a distance sensor, a focus adjustment module, and a control unit, is provided. The projection module is configured to generate an image beam. The projection lens is disposed on a transmission path of the image beam. The focus adjustment module is connected to the proj...