ALEXANDRIA, Va., Sept. 1 -- United States Patent no. 12,723,737, issued on Sept. 1, was assigned to 4K-MEMS SA (St. Blaise, Switzerland).

"Thermal light emitting device" was invented by Ross Stanley (Epalinges, Switzerland) and Matthias Imboden (St-Blaise, Switzerland).

According to the abstract* released by the U.S. Patent & Trademark Office: "A thermal emitter device, including a thermal emitting membrane including a surface, wherein the membrane can be heated to a thermal emission temperature so that the surface radiates IR or visible light, wherein the emissivity of the surface is lower than 0.7. A lens includes a surface facing the surface of the membrane, and has a reflectivity normal to the lens surface included in the range 4% to ...