Title:
COOLED HIGH INTENSITY GAS DISCHARGE LAMP
Document Type and Number:
WIPO Patent Application WO2003056605
Kind Code:
A3
Abstract:
The invention relates to a cooled high intensity gas discharge lamp. Said lamp comprises at least a cooled bulb (43), which hermetically seals a discharge chamber (431) that is filled with a gas, whereby at the moment of discharge, an inhomogeneous temperature distribution is present, at least in the discharge chamber (431) and a cooling device (7) containing a coolant, which produces a directional coolant stream (9). According to the invention, a liquid coolant acts on the bulb (43), the lamp can be operated with an increased performance and the coolant stream (9) is formed in such a way that devitrification of the bulb (43) and condensation of the gas is substantially prevented during increased power consumption.
Inventors:
MOENCH HOLGER (DE)
STOFFELS JAN A J (DE)
STOFFELS JAN A J (DE)
Application Number:
PCT/IB2002/005507
Publication Date:
June 03, 2004
Filing Date:
December 18, 2002
Export Citation:
Assignee:
PHILIPS INTELLECTUAL PROPERTY (DE)
KONINKL PHILIPS ELECTRONICS NV (NL)
MOENCH HOLGER (DE)
STOFFELS JAN A J (DE)
KONINKL PHILIPS ELECTRONICS NV (NL)
MOENCH HOLGER (DE)
STOFFELS JAN A J (DE)
International Classes:
F21S2/00; G03B21/14; F21S8/12; F21V29/00; F21V29/02; G03B21/16; G03B21/20; H01J61/00; H01J61/52; H01J61/86; F21Y101/00; (IPC1-7): H01J61/52
Foreign References:
| EP0897190A2 | 1999-02-17 | |||
| EP0825808A2 | 1998-02-25 |
Other References:
PATENT ABSTRACTS OF JAPAN vol. 1997, no. 10 31 October 1997 (1997-10-31)
Download PDF:
Previous Patent: SELF-IONIZED AND INDUCTIVELY-COUPLED PLASMA FOR SPUTTERING AND RESPUTTERING
Next Patent: COLD CATHODE TYPE FLUORESCENT LAMP
Next Patent: COLD CATHODE TYPE FLUORESCENT LAMP