ALEXANDRIA, Va., July 28 -- United States Patent no. 12,691,756, issued on July 28, was assigned to SD Optics Inc. (Seoul, South Korea).
"Head up display with displaying plane distance control with freeform variable focusing micromirror array lens system" was invented by Jin Young Sohn (Seoul, South Korea), Jong Choon Kim (Seoul, South Korea), Hong Ju Kim (Seoul, South Korea), Min Beom Lee (Seoul, South Korea), Ki Bok Kim (Seoul, South Korea) and Cheong Soo Seo (Seoul, South Korea).
According to the abstract* released by the U.S. Patent & Trademark Office: "The present invention comprises freeform variable focusing optical component, optical module, focus controller, display unit, display controller and processing unit. With the freeform ...