ALEXANDRIA, Va., March 17 -- United States Patent no. 12,578,621, issued on March 17, was assigned to TDK Corp. (Tokyo).
"Optical system" was invented by Yi-Ho Chen (Taoyuan City, Taiwan), Shu-Shan Chen (Taoyuan City, Taiwan), Ko-Lun Chao (Taoyuan City, Taiwan) and Pai-Jui Cheng (Taoyuan City, Taiwan).
According to the abstract* released by the U.S. Patent & Trademark Office: "An optical system is provided, including a movable portion, a fixed portion, and a driving assembly. The movable portion is connected to an optical module. The movable portion is movable relative to the fixed portion. The driving assembly drives the movable portion to move relative to the fixed portion. The driving assembly is in contact with the movable portion."
...