Title:
DIELECTRIC BARRIER DISCHARGE LAMP COMPRISING AN UV-B PHOSPHOR
Document Type and Number:
WIPO Patent Application WO2005104162
Kind Code:
A3
Abstract:
This invention relates to a dielectric barrier Xe discharge lamp comprising an UV-B phosphor. The lamp consists of a gas-tight, discharge vessel with a gas filling containing Xe or a Xe/Ne mixture and is provided with a luminescent layer, which comprises at least one luminescent material emitting in the UV-B range (280 to 320 nm). The luminescent layer comprises a Gd3+ activated phosphor according to the formulas McPO4:Gd, Lal1_XA13(BO3)4:GdX, and La1_xB3O6:Gdx which is eventually sensitised by Bi3+, Pr3+ or Nd3+ The advantages of such an UV-B emitting discharge lamp over fluorescent lamps based on a Hg low-pressure discharge are a high power density, 10 instant light, long lifetime, a spectral power distribution which is only determined by the phosphor blend, and an arbitrary burner design.
Inventors:
JUESTEL THOMAS (DE)
HUPPERTZ PETRA (DE)
WIECHERT DETLEF UWE (DE)
MAYR WALTER (DE)
VON BUSCH HEINRICH (DE)
HUPPERTZ PETRA (DE)
WIECHERT DETLEF UWE (DE)
MAYR WALTER (DE)
VON BUSCH HEINRICH (DE)
Application Number:
PCT/IB2005/051267
Publication Date:
June 22, 2006
Filing Date:
April 19, 2005
Export Citation:
Assignee:
PHILIPS INTELLECTUAL PROPERTY (DE)
KONINKL PHILIPS ELECTRONICS NV (NL)
JUESTEL THOMAS (DE)
HUPPERTZ PETRA (DE)
WIECHERT DETLEF UWE (DE)
MAYR WALTER (DE)
VON BUSCH HEINRICH (DE)
KONINKL PHILIPS ELECTRONICS NV (NL)
JUESTEL THOMAS (DE)
HUPPERTZ PETRA (DE)
WIECHERT DETLEF UWE (DE)
MAYR WALTER (DE)
VON BUSCH HEINRICH (DE)
International Classes:
H01J1/62; C09K11/77; H01J61/02; H01J61/44; H01J65/04; H01J
Foreign References:
| EP1154461A1 | 2001-11-14 | |||
| US20020041145A1 | 2002-04-11 | |||
| EP1111025A2 | 2001-06-27 |
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