ALEXANDRIA, Va., Feb. 17 -- United States Patent no. 12,557,197, issued on Feb. 17, was assigned to Japan Display Inc. (Tokyo).
"Control device of illumination system" was invented by Kazunori Yamaguchi (Tokyo), Chiehan Chien (Tokyo) and Gang Shao (Tokyo).
According to the abstract* released by the U.S. Patent & Trademark Office: "A control device of an illumination system includes an illumination device capable of controlling a distribution angle of light emitted from a light source. The control device includes a detection device including a distribution angle adjustment region for the illumination device on an XY plane with a predetermined position as the origin in a detection region provided with a plurality of detection elements arran...