Title:
UV-EMITTING PHOSPHORS, PHOSPHOR BLEND AND LAMP CONTAINING SAME
Document Type and Number:
WIPO Patent Application WO2007038467
Kind Code:
A9
Abstract:
There are provided UV-emitting phosphors, a phosphor blend and a lamp containing same. The blend is comprised of a mixture of a YPO4:Ce phosphor and a LaPO4:Ce phosphor. The YPO4:Ce and LaPO4:Ce phosphors may be surface treated to increase their isoelectric point to enhance lamp stabilization. A third phosphor having an isoelectric point that is at least 3 pH units higher than either of the YPO4:Ce and LaPO4:Ce phosphors also may be added to improve lamp stabilization time. The phosphor blend is lead-free and lamps containing the blend provide equivalent performance to state-of-the-art tanning lamps.
Inventors:
DUTTA ARUNAVA (US)
DULLEA LEONARD V (US)
FAN CHEN WEN (US)
TETREAULT ALINE (CA)
DESBIENS NICOLAS (CA)
DULLEA LEONARD V (US)
FAN CHEN WEN (US)
TETREAULT ALINE (CA)
DESBIENS NICOLAS (CA)
Application Number:
PCT/US2006/037379
Publication Date:
May 31, 2007
Filing Date:
September 25, 2006
Export Citation:
Assignee:
OSRAM SYLVANIA INC (US)
DUTTA ARUNAVA (US)
DULLEA LEONARD V (US)
FAN CHEN WEN (US)
TETREAULT ALINE (CA)
DESBIENS NICOLAS (CA)
DUTTA ARUNAVA (US)
DULLEA LEONARD V (US)
FAN CHEN WEN (US)
TETREAULT ALINE (CA)
DESBIENS NICOLAS (CA)
International Classes:
H01J1/62; H01J63/04
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