Patent ID: 8723198
Filing Date: 2014-05-13
Classification: C09K,H01L,Y10T

Abstract:
1. A wavelength-converting converter material, comprising: a first wavelength-converting phosphor comprising phosphor particles, wherein a portion of the first phosphor or all of the first phosphor is present in the form of nanoparticles, the nanoparticles having a d50-value being greater than or equal to 1 nm and less than or equal to 100 nm, said d50-value being a median particle diameter which is determined on the basis of a volume or mass distribution sum (Q3) or a number distribution sum (Q0); and a second wavelength-converting phosphor comprising microparticles having a median particle diameter (d50-value) being greater than 1 μm and less than or equal to 20 μm; wherein the nanoparticles serve as an optically active thixotropic agent or as an optically active sedimentation delaying agent for the microparticles.