Title:
LOW-PRESSURE GAS DISCHARGE LAMP COMPRISING A UV-B PHOSPHOR
Document Type and Number:
WIPO Patent Application WO2005124825
Kind Code:
A3
Abstract:
The invention relates to a low-pressure gas discharge lamp provided with a gas discharge vessel comprising a gas filling with a discharge-maintaining composition, wherein at least part of a wall of the discharge vessel is provided with a luminescent material comprising a first UV-B phosphor containing, in a host lattice, gadolinium(III) as an activator and praseodymium(III) as a sensitizer, which lowpressure gas discharge lamp is further provided with means for generating and maintaining a low-pressure gas discharge Such a lamp is particularly useful for narrow-band UV-B phototherapy. The invention also relates to a UV-B phosphor containing, in a host lattice, gadolinium(III) as an activator and praseodymium(III) as a sensitizer.
Inventors:
JUESTEL THOMAS (DE)
MAYR WALTER (DE)
MASTENBROEK OLAF (DE)
MAYR WALTER (DE)
MASTENBROEK OLAF (DE)
Application Number:
PCT/IB2005/051918
Publication Date:
May 11, 2006
Filing Date:
June 10, 2005
Export Citation:
Assignee:
PHILIPS INTELLECTUAL PROPERTY (DE)
KONINKL PHILIPS ELECTRONICS NV (NL)
JUESTEL THOMAS (DE)
MAYR WALTER (DE)
MASTENBROEK OLAF (DE)
KONINKL PHILIPS ELECTRONICS NV (NL)
JUESTEL THOMAS (DE)
MAYR WALTER (DE)
MASTENBROEK OLAF (DE)
International Classes:
H01J1/02; C09K11/77; H01J1/62; H01J61/44; H01J61/72; H01J65/04; H01K9/00
Foreign References:
EP1253624A2 | 2002-10-30 | |||
US20020041145A1 | 2002-04-11 |
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