US Patent Issued to Lumileds on April 22 for "Laterally heterogenous wavelength-converting layer" (Dutch, American, German Inventors)

ALEXANDRIA, Va., June 6 -- United States Patent no. 12,284,850, issued on April 22, was assigned to Lumileds LLC (San Jose, Calif.).

"Laterally heterogenous wavelength-converting layer" was invented by Marcel Rene Bohmer (Eindhoven, Netherlands), Toni Lopez (Aachen, Germany) and Ken Shimizu (Sunnyvale, Calif.).

According to the abstract* released by the U.S. Patent & Trademark Office: "A laterally heterogenous wavelength-converting optical element includes pixel regions surrounded by border regions; each includes down-converting phosphor particles bound by a coating or solid medium. The pixel regions are aligned with LEDs of an array. The phosphor regions differ with respect to one or more of compositions, particle sizes, coating thicknes...