ALEXANDRIA, Va., July 23 -- United States Patent no. 12,366,722, issued on July 22, was assigned to Samsung Electro-Mechanics Co. Ltd. (Suwon-si, South Korea).

"Telescopic optical imaging system" was invented by Jin Hwa Jung (Suwon-si, South Korea) and Yong Joo Jo (Suwon-si, South Korea).

According to the abstract* released by the U.S. Patent & Trademark Office: "An optical imaging system includes a first lens, a second lens, a third lens, a fourth lens, a fifth lens, and a sixth lens sequentially arranged on an optical axis from an object side to an image side, wherein an image-side surface of the first lens and an image-side surface of the sixth lens may be concave, and 0.7greater thanTL/fgreater than1.0 and |Nd2-Nd3|greater than0.2 in ...