The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Sep. 01, 2026
Filed:
Aug. 04, 2022
Lumileds Llc, San Jose, CA (US);
Mohamed S. Abdelkhalik, Eindhoven, NL;
Aleksandr Vaskin, Eindhoven, NL;
Debapriya Pal, Amsterdam, NL;
Jaime Gomez Rivas, Eindhoven, NL;
Albert Femius Koenderink, Amsterdam, NL;
Toni Lopez, Aachen, DE;
Aimi Abass, Aachen, DE;
LUMILEDS SINGAPORE PTE. LTD., Singapore, SG;
Abstract
A light-emitting device includes a semiconductor diode structure, a surface-lattice-mode (SLR) structure against the back of the diode structure, and a reflector against the back of the SLR structure. The diode structure includes first and second doped semiconductor layers and an active layer between them; the active layer emits output light at a nominal emission vacuum wavelength λto propagate within the diode structure. The SLR structure includes an index-matched layer, a lower-index layer, and scattering elements, and is in near-field proximity to the active layer relative to λ. At least a portion of the output light, propagating perpendicularly within the diode structure relative to a device exit surface, exits the diode structure as device output light. The scattering elements redirect output light propagating within the device, including in laterally propagating surface-lattice-resonance modes supported by the SLR structure, to propagate perpendicularly toward the device exit surface.