ALEXANDRIA, Va., May 19 -- United States Patent no. 12,631,856, issued on May 19, was assigned to LG INNOTEK Co. LTD. (Seoul, South Korea).

"Optical system and camera module comprising same" was invented by Ju Yong Shim (Seoul, South Korea).

According to the abstract* released by the U.S. Patent & Trademark Office: "The optical system disclosed in the embodiment of the invention includes first to fourth lens groups arranged along an optical axis from an object side toward a sensor side and including each including at least one lens, wherein the first lens group has a refractive power opposite to that of the fourth lens group, the second lens group has a refractive power opposite to that of the third lens group, the first and fourth lens g...