ALEXANDRIA, Va., Dec. 23 -- United States Patent no. 12,504,150, issued on Dec. 23, was assigned to MITSUBISHI ELECTRIC Corp. (Tokyo).
"Illumination device" was invented by Masatoshi Nishimura (Tokyo) and Satoru Okagaki (Tokyo).
According to the abstract* released by the U.S. Patent & Trademark Office: "Regarding an illumination device reproducing a sky seen through a window, an object is to achieve further size reduction and structure simplification and reproduce a more natural scene without limiting provision places and the number of provided devices. An illumination device of the present disclosure includes: a light source; a diffuser having a scattering structure to scatter entering light, and having at least one light entrance surfac...