Electric lamp and discharge devices – With luminescent solid or liquid material – With gaseous discharge medium
Reexamination Certificate
2007-01-02
2007-01-02
Williams, Joseph (Department: 2879)
Electric lamp and discharge devices
With luminescent solid or liquid material
With gaseous discharge medium
C252S301500
Reexamination Certificate
active
10711634
ABSTRACT:
A single-component, yellow-emitting electroluminescent phosphor, a method for making same, and an electroluminescent lamp containing same, are described. The phosphor produces a yellow emission having an x color coordinate from 0.420 to 0.500 and y color coordinate from 0.420 to 0.460 when stimulated by an electric field.
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Clark Robert F.
Osram Sylvania Inc
Williams Joseph
Won Bumsuk
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