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US 11,600,752 B2Granted
LED with structured layers and nanophosphors
AssigneeLumileds LLC
InventorsVenkata Ananth Tamma, Antonio Lopez-Julia
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Abstract
A device comprising a light emitting diode (LED) substrate, and a meta-molecule wavelength converting layer positioned within an emitted light path from the LED substrate, the a meta-molecule wavelength converting layer including a plurality of nanoparticles, the plurality of nanoparticles configured to increase a light path length in the wavelength converting layer.
Claims20
A device comprising:
- a light emitting diode (LED);
- a plurality of first layers each comprising at least one of hyperbolic metamaterials (HMM) comprising at least one metal layer and photonic crystal (PhC) comprising at least one dielectric layer;
- a plurality of nanostructure layers positioned within an emitted light path from the LED and disposed in alternating layers with the plurality of first layers, each of the plurality of nanostructure layers comprising converter nanoparticles embedded in a dielectric host medium,
- the plurality of first layers being arranged to affect interaction of the converter nanoparticles with one or both of light emitted by the LED and light emitted by the converter nanoparticles.
1 more element
Dependencies are inferred from the claim text.