ALEXANDRIA, Va., June 17 -- United States Patent no. 12,313,827, issued on May 27, was assigned to LG INNOTEK Co. LTD. (Seoul, South Korea).
"Optical system and camera module comprising same" was invented by Hyung Rok Shim (Seoul, South Korea).
According to the abstract* released by the U.S. Patent & Trademark Office: "A zoom optical system according to an embodiment of the present invention includes a first lens group, a second lens group, a third lens group, and a fourth lens group which are sequentially disposed in a direction from an object side to an image side, wherein the second lens group and the third lens group are movable, a total track length (TTL) is less than 20 mm, and an effective focal length (EFL) in a telephoto is great...