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

Claim 7:
8. A light emitting device comprising:
a light emitting diode; and
a phosphor layer disposed on the light emitting diode, the phosphor layer comprising:
a plurality of phosphor grains disposed in a particle layer, the particle layer comprising interstices between the phosphor grains;
a matrix disposed in the interstices, the matrix comprising a silicone or sol-gel matrix material, wherein the matrix material disposed in the interstices is not in contact with the light emitting diode; and
a plurality of cavities interspersed in the matrix material, 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.