Patent ID: 9464225
Filing Date: 2016-10-11
CPC Classification: C09K

Claim Text:
1. A plurality of luminescent particles, each of the luminescent particles comprising: an interior portion comprising a luminescent compound comprising a nitride that is configured to perform a photon down conversion on a portion of received light; a passivating region on an outer surface of the interior portion and operable to inhibit reactions involving the luminescent compound, wherein the passivating region comprises nitrogen, the nitrogen being present at a reduced percentage compared to the interior portion of the luminescent particle; and a reflectance reducing outer surface of each luminescent particle that is configured to increase the portion of received light that is absorbed in the luminescent particle, wherein the reflectance reducing outer surface includes a substantially continuous contoured surface, wherein the plurality of luminescent particles comprise a first diffuse reflectance of from 31.1% to 34.2% at a dominant wavelength of light of about 450 nm.