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US 2004/0166038 A1Published application
Coated luminescent material and light-emitting device having such a luminescent material
AssigneesPatent-Treuhand-Gesellschaft fur elektrische Gluhlampen mbH, OSRAM Opto Semiconductors GmbH
InventorsBert Braune, Martin Zachau, Franz Zwaschka
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Abstract
A coated luminescent material having a luminescent material powder formed by grains, the luminescent grains being coated, and the coating being at most 5 nm, preferably at most 2 nm.
Claims12
A coated luminescent material comprising a luminescent material powder formed by grains, the luminescent grains being coated, wherein the layer thickness of the coating is at most 5 nm and, in particular, is less than or equal to 3 nm.
Dependencies are inferred from the claim text.