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US 6,724,142 B2Granted
Highly efficient fluorescent material
AssigneePatent-Treuhand-Gesellschaft fur elektrische Gluhlampen mbH
InventorsAndries Ellens, Guenter Huber
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Abstract
Fluorescent material from the class of the silicide nitrides, Sr being used as cation, and the suicide nitrides being doped with trivalent Ce.
Claims7
A highly efficient fluorescent material from the class of the silicide nitrides having a cation and the basic formula AxSiyNz, characterized in that the fluorescent material is Sr2Si5N8:Ce3+ or SrSi7N10:Ce3+.
The fluorescent material as claimed in claim 1, 30 mol %, is replaced by Ba and/or Ca.
Dependencies are inferred from the claim text.