ALEXANDRIA, Va., June 16 -- United States Patent no. 12,306,520, issued on May 20, was assigned to Coretronic Corp. (Hsin-Chu, Taiwan).
"Rotary optical module and projection apparatus" was invented by Te-Ying Tsai (Hsin-Chu, Taiwan) and Ming-Feng Hou (Hsin-Chu, Taiwan).
According to the abstract* released by the U.S. Patent & Trademark Office: "Provided is a rotary optical module, including a drive device, an optical turntable, a balance ring, at least one counterweight device, and multiple protruding structures. The drive device includes a rotary axis, extending along a first direction. The optical turntable and the balance ring are both sleeved on the rotary axis of the drive device, and the balance ring is located between the drive dev...