ALEXANDRIA, Va., Aug. 26 -- United States Patent no. 12,398,321, issued on Aug. 26, was assigned to Lumileds LLC (San Jose, Calif.).

"Swir pcLED and spinel type phosphors emitting in the 1000-1700 nm range" was invented by Peter Josef Schmidt (Aachen, Germany), Detlef Wiechert (Aachen, Germany) and Cristian Dan (Schiphol, Netherlands).

According to the abstract* released by the U.S. Patent & Trademark Office: "A wavelength converting structure is disclosed, the wavelength converting structure including a spinel type SWIR phosphor material having emission wavelengths in the range of 1000 to 1700 nm, the SWIR phosphor material including AE1-x-zAz+0.5(x-y)D2+0.5(x-y)-z-u EzO4:Niy,Cru where AE=Mg, Zn, Co, or Be, or mixtures thereof, A=Li, Na,...