ALEXANDRIA, Va., Dec. 16 -- United States Patent no. 12,498,619, issued on Dec. 16, was assigned to TDK TAIWAN CORP. (Taoyuan, Taiwan).

"Aperture unit" was invented by Kuo-Chun Kao (Taoyuan, Taiwan), Meng-Ting Lin (Taoyuan, Taiwan), I-Mei Huang (Taoyuan, Taiwan) and Sin-Jhong Song (Taoyuan, Taiwan).

According to the abstract* released by the U.S. Patent & Trademark Office: "An aperture unit having an optical axis is provided, which includes a fixed portion having a first surface and including a protrusion formed on the first surface, a guiding element movably connected to the fixed portion and including a through hole, a first blade movably connected to the guiding element and the fixed portion, and a driving assembly use for driving the ...