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US 2006/0038162 A1Published application
Phosphor composition for lamps
AssigneePatent-Treuhand-Gesellschaft fur elektrische Gluhlampen mbH
InventorsTim Fiedler, Gunter Huber, Ulrich Muller, Martin Zachau
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Abstract
The invention relates to a phosphor composition for lamps with a lattice of monoclinic crystal structure (monazite) of type (1−g)[((1−c−a)*Ln, c*Ce, a*A)PO4]×g*GeO2, in which Ln is at least one element selected from the group consisting of lanthanum La, gadolinium Gd and/or Yttrium Y and A is at least one activator selected from the group consisting of terbium Tb, praseodymium Pr and/or europium Eu, and 0≦a≦1.0; 0≦c≦1.0, and 0<g≦0.2.
Claims8
A phosphor composition for lamps with a lattice of monoclinic crystal structure (monazite) of type
- (1−g)[((1−c−a)*Ln, c*Ce, a*A) PO4]×g*GeO2,
- in which Ln is at least one element selected from the group consisting of lanthanum La, gadolinium Gd and/or yttrium Y and A is at least one activator selected from the group consisting of terbium Tb, praseodymium Pr and/or europium Eu, and
- 0≦a≦1.0
- 0≦c≦1.0, and
- 0<g≦0.2.
2 more elements
Dependencies are inferred from the claim text.