EP 1470569 A4 20071017 - HIGH INTENSITY DISCHARGE LAMP WITH SINGLE CRYSTAL SAPPHIRE ENVELOPE
Title (en)
HIGH INTENSITY DISCHARGE LAMP WITH SINGLE CRYSTAL SAPPHIRE ENVELOPE
Title (de)
HOCHINTENSITÄTSENTLADUNGSLAMPE MIT EINKRISTALL-SAPHIRHÜLLE
Title (fr)
LAMPE A DECHARGE A HAUTE INTENSITE A ENVELOPPE EN SAPHIR MONOCRISTALLIN
Publication
Application
Priority
US 0202566 W 20020128
Abstract (en)
[origin: WO03030212A1] A high intensity discharge lamp constructed with a tubular envelope composed of single crystal sapphire (100) in which a continuous non-flash arc is created across multiple electrodes (207, 209) to generate a radiation emitting plasma. The lamp may operate at higher temperatures and pressures than conventional high intensity discharge lamps to produce greater luminance at any given power output. A wide range of gases and additives may be chosen. The lamp is a small powerful light source, has a longer effective life, and maintains a selected color temperature over the live of the lamp. The lamp may be operated without electrodes utilizing microwave or radio frequency radiation as a power source.
IPC 1-7
IPC 8 full level
H01J 61/88 (2006.01); H01J 61/30 (2006.01); H01J 61/36 (2006.01); H01J 61/86 (2006.01); H01J 65/04 (2006.01)
CPC (source: EP)
H01J 61/302 (2013.01); H01J 61/363 (2013.01); H01J 61/86 (2013.01)
Citation (search report)
- [A] EP 0788141 B1 20010926 - OSRAM SYLVANIA INC [US]
- [A] US 6274982 B1 20010814 - SCOTT CURTIS E [US], et al
- [A] US 5099174 A 19920324 - COXON GEORGE E [GB], et al
- [A] WO 9628839 A1 19960919 - PHILIPS ELECTRONICS NV [NL], et al
- [A] GB 2082382 A 19820303 - PHILIPS NV
- [A] GB 1025723 A 19660414 - GEN ELECTRIC CO LTD
- [A] JP S5882454 A 19830518 - KYORITSU DENKI KK
- See references of WO 03030212A1
Designated contracting state (EPC)
AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE TR
DOCDB simple family (publication)
WO 03030212 A1 20030410; CA 2465786 A1 20030410; EP 1470569 A1 20041027; EP 1470569 A4 20071017; JP 2005527935 A 20050915
DOCDB simple family (application)
US 0202566 W 20020128; CA 2465786 A 20020128; EP 02707608 A 20020128; JP 2003533313 A 20020128