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US 2009/0212683 A1Published application
Red-Emitting Luminescent Substance and Light Source Comprising Such a Luminescent Substance
AssigneeOSRAM GmbH
InventorsTim Fiedler, Wolfram Hempel, Frank Jermann
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Abstract
Disclosed is a luminescent substance which has the structure EA3N2Si2O4:D, wherein EA=(Sr,Ba,Ca) and D=Eu, provides red emission, and is characterized by great stability and a simple production process. Said luminescent substance can be used for many different types of light sources.
Claims12
A red-emitting luminescent substance from the class of the oxynitridosilicates, which substantially has the structure EA3Si2O4N2:D, wherein the luminescent substance has as component EA=Sr, Ba and/or Ca alone or in combination, wherein the activating doping D, which replaces part of EA, consists of Eu.
Dependencies are inferred from the claim text.