Patent ID: 11923482
Assignee: LUMILEDS, LLC
Field: Semiconductors (Electrical engineering)
Classification: CPC H  C | IPC C  H

Claim 0:
1. A light emitting device comprising:
a light emitting diode; and
a phosphor layer formed on the light emitting diode, the phosphor layer comprising:
a plurality of phosphor grains formed in a particle layer, the particle layer comprising interstices between the phosphor grains;
a silicone or sol-gel matrix material disposed in a portion of the interstices, wherein the matrix material disposed in the portion of the interstices is not in contact with the light emitting diode; and
a plurality of cavities disposed in a remaining portion of the interstices, at least one of the plurality of cavities having a first side adjacent to the silicone or sol-gel matrix material and a second side adjacent to the at least one of the plurality of phosphor grains.