ALEXANDRIA, Va., Dec. 9 -- United States Patent no. 12,492,787, issued on Dec. 9, was assigned to SIGNIFY HOLDING B.V. (Eindhoven, Netherlands).

"Artificial skylight" was invented by Bartel Marinus Van De Sluis (Eindhoven, Netherlands), Marcellinus Petrus Carolus Michael Krijn (Eindhoven, Netherlands) and Michel Cornelis Josephus Marie Vissenberg (Roermond, Netherlands).

According to the abstract* released by the U.S. Patent & Trademark Office: "Artificial skylight (1000) comprising an elongated light source (1) accommodated in an elongated light box (5) comprising a base wall (7) and a light exit window (9) mutually connected by a circumferential side wall (11). The light source issues light source light (17) into the cavity of the elong...