Beschichteter Leuchtstoff, lichtemittierende Vorrichtung mit derartigem Leuchtstoff und Verfahren zu seiner Herstellung

摘要

A coated phosphor, formed by a powder of individual grains of a phosphor as base material, the grains being coated with a coating material. The layer comprises a plurality of individual layers and is particulate in form, the individual primary particles of the layer being at least 5 nm in size. The mean layer thickness is at least 20 nm.