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US 11,798,798 B2Granted
Phosphor for a UV emitting device and a UV generating device utilizing such a phosphor
AssigneeXylem Europe GmbH
InventorsManfred Salvermoser, Mike Broxtermann, Jan-Niklas Keil, Thomas Jüstel
Life of this patent
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Abstract
The invention relates to a phosphor for a UV emitting device, having the formula Na1+xCa1−2xPO4:PR3+x wherein 0<x<0.5.
Claims17
A phosphor for a UV emitting device, having the formula
- Na1+xCa1−2xPO4:PR3+x,
- wherein
- 0.01<x<0.1, and
- wherein the phosphor is configured to convert vacuum ultraviolet (VUV) radiation to UV-C radiation.
1 more element
A method comprising:
- providing a phosphor having the formula:
- Na1+xCa1−2xPO4:PR3+x, wherein 0<x<0.5;
- exposing the phosphor to VUV radiation;
- and
- converting the VUV radiation to UV-C radiation using the phosphor.
2 more elements
A UV generating device comprising:
- a phosphor having the formula Na1+xCa1−2xPO4:PR3+x, wherein 0<x<0.5, and
- a UV radiation source comprising a gas discharge lamp.
Dependencies are inferred from the claim text.