Title:
COLOUR TUNABLE LIGHTING ELEMENT
Document Type and Number:
WIPO Patent Application WO2005006388
Kind Code:
A3
Abstract:
A colour tunable lighting element is described, which comprises an assembly of dielectric barrier discharge lamps, each of them filled with a noble gas or a noble gas mixture, wherein a Xe low-pressure discharge generates invisible UV radiation, which is converted into visible light by one or several phosphors being coated onto the inner surface of the bulb, wherein the visible light of several dielectric barrier discharge lamps is mixed by optical means and is emitted homogeneously. Such an assembly of dielectric barrier discharge lamps is useful for the generation of white light with an arbitrary colour temperature and of saturated coloured light.
Inventors:
JUESTEL THOMAS (DE)
BERTRAM DIETRICH (DE)
BERTRAM DIETRICH (DE)
Application Number:
PCT/IB2004/051153
Publication Date:
June 30, 2005
Filing Date:
July 07, 2004
Export Citation:
Assignee:
PHILIPS INTELLECTUAL PROPERTY (DE)
KONINKL PHILIPS ELECTRONICS NV (NL)
JUESTEL THOMAS (DE)
BERTRAM DIETRICH (DE)
KONINKL PHILIPS ELECTRONICS NV (NL)
JUESTEL THOMAS (DE)
BERTRAM DIETRICH (DE)
International Classes:
F21S8/00; F21S10/02; H01J61/44; H01J65/04; H05B35/00; (IPC1-7): H01J65/04; F21S8/00; F21S10/02; H01J61/44; H05B35/00
Domestic Patent References:
| WO2000079334A1 | 2000-12-28 | |||
| WO2002050807A2 | 2002-06-27 | |||
| WO2002103748A1 | 2002-12-27 | |||
| WO2003046935A2 | 2003-06-05 |
Foreign References:
| EP1116989A2 | 2001-07-18 | |||
| US6380669B1 | 2002-04-30 | |||
| US20020047510A1 | 2002-04-25 |
Other References:
PATENT ABSTRACTS OF JAPAN vol. 1998, no. 05 30 April 1998 (1998-04-30)
PATENT ABSTRACTS OF JAPAN vol. 1996, no. 06 28 June 1996 (1996-06-28)
PATENT ABSTRACTS OF JAPAN vol. 006, no. 127 (C - 113) 13 July 1982 (1982-07-13)
PATENT ABSTRACTS OF JAPAN vol. 1996, no. 06 28 June 1996 (1996-06-28)
PATENT ABSTRACTS OF JAPAN vol. 006, no. 127 (C - 113) 13 July 1982 (1982-07-13)
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