Patent ID: 11870023
Assignee: LUMILEDS, LLC
Field: Semiconductors (Electrical engineering)
Classification: CPC H | IPC H

Claim 10:
11. A light emitting device comprising:
a semiconductor diode structure that in operation emits a first light comprising light rays;
a substrate transparent to the first light and comprising a top surface, a bottom surface oppositely positioned from the top surface, and side surfaces connecting the top surface and the bottom surface, the bottom surface disposed on or adjacent the semiconductor diode structure;
a wavelength converting structure comprising a top surface and an oppositely positioned bottom surface disposed on or adjacent the top surface of the substrate; and
a 2D photonic crystal comprising nanoantennas, the 2D photonic crystal positioned between the top surface of the substrate and the top surface of the wavelength converting structure and that in operation transmits the light rays into the wavelength converting structure at an angle with respect to the 2D photonic crystal greater than an angle of incidence of the light rays on the 2D photonic crystal, the semiconductor diode structure in operation emits the light rays of first light to be incident on the 2D photonic crystal from a substrate side of the 2D photonic crystal.