ALEXANDRIA, Va., Feb. 5 -- United States Patent no. 12,216,258, issued on Feb. 4, was assigned to LG INNOTEK Co. LTD. (Seoul, South Korea).
"Prism actuator" was invented by Sang Ok Park (Seoul, South Korea) and Seong Min Lee (Seoul, South Korea).
According to the abstract* released by the U.S. Patent & Trademark Office: "The present embodiment relates to a prism actuator comprising: a housing; a holder having at least a part spaced apart from the housing; a prism disposed on the holder; a shape memory alloy member for connecting the housing and the holder to each other; and an elastic member for connecting the housing and the holder to each other, wherein the shape memory alloy member comprises first and second shape memory alloy members ...