Electric lamp and discharge devices – With luminescent solid or liquid material – With gaseous discharge medium
Reexamination Certificate
2006-10-17
2006-10-17
Santiago, Mariceli (Department: 2879)
Electric lamp and discharge devices
With luminescent solid or liquid material
With gaseous discharge medium
C313S485000, C313S486000, C313S581000
Reexamination Certificate
active
07122951
ABSTRACT:
The invention proposes a dielectric barrier discharge lamp having a phosphor mixture and improved color rendering. The phosphor mixture comprises at least the phosphor components A: cerium-activated yttrium aluminate (Y3Al5O12:Ce) and B: europium-activated barium magnesium aluminate (BaMgAl10O17:Eu). To further improve the color rendering and to match the emission spectrum to the spectral sensitivity of film, the phosphor mixture optionally also comprises the phosphor component C: cerium- and manganese-activated gadolinium magnesium zinc pentaborate (Gd(Zn,Mg)B5O10:(Ce, Mn)) and/or the phosphor component D: europium-activated strontium aluminate (Sr4Al14O25:Eu).
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Heider Jürgen
Hirrle Renate
Krämer Regine
Möller Ulrich
Zachau Martin
Clark Robert F.
Patent-Treuhand-Gesellschaft fuer Elektrisch Gluehlampen mbH
Santiago Mariceli
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