Patent ID: 8169136
Filing Date: 2012-05-01
Classification: B82Y,C04B,C09K,H01L,H05B

Abstract:
1. A light emitting device comprising: a light emitting component that emits light with a first peak wavelength of about 440 nm to about 470 nm; at least one sintered ceramic plate over the light emitting component, wherein the at least one sintered ceramic plate comprises a multiphasic material, said multiphasic material comprises about 95% to about 99.5% by volume of an emissive phase and about 5% to about 0.5% by volume of a second phase; and wherein the at least one sintered ceramic plate is capable of absorbing at least a portion of the light emitted from said light emitting component and emitting light of a second peak wavelength, and has a total light transmittance at the second peak wavelength of greater than about 40%.