US Patent Issued to Lumileds on April 22 for "Light-emitting device with internal non-specular light redirection and position-dependent reflection, transmission, or redirection" (Dutch, American, German Inventors)

ALEXANDRIA, Va., June 6 -- United States Patent no. 12,284,846, issued on April 22, was assigned to Lumileds LLC (San Jose, Calif.).

"Light-emitting device with internal non-specular light redirection and position-dependent reflection, transmission, or redirection" was invented by Toni Lopez (Vaals, Netherlands), Venkata Ananth Tamma (San Jose, Calif.) and Aimi Abass (Aachen, Germany).

According to the abstract* released by the U.S. Patent & Trademark Office: "A semiconductor diode structure has one or more light-emitting active layers and a redirection layer on the back surface that includes one or more of an array of nano-antennae, a partial photonic bandgap structure, a photonic crystal, or an array of meta-atoms or meta-molecules, and...