EP 1004133 A4 20000531 - STARTING AID THAT SURROUNDS AN ELECTRODE OF A LOW PRESSURE DISCHARGE LAMP
Title (en)
STARTING AID THAT SURROUNDS AN ELECTRODE OF A LOW PRESSURE DISCHARGE LAMP
Title (de)
ZÜNDHILFE IN DER HÜLSE EINER NIEDERDRUCKENTLADUNGSLAMPE
Title (fr)
AIDE A L'AMOR AGE ENTOURANT UNE ELECTRODE D'UNE LAMPE A DECHARGE A FAIBLE PRESSION
Publication
Application
Priority
- US 9804989 W 19980313
- US 4075797 P 19970314
Abstract (en)
[origin: WO9840900A1] A discharge lamp (10) having an envelope (12), a first electrode (26), a second electrode (28), a conductive starting aid (34) that is enclosed in the envelope and located around the inner end (30) of the first electrode, a fill material (50) located in an enclosed volume (16), and a photoemissive coating (64) formed on the inner surface of the envelope is disclosed; wherein, the starting aid (34) yields a more reliable lamp for starting.
IPC 1-7
H01J 1/62; H01J 63/04; H01J 17/30; H01J 17/46; H01J 17/04; H01J 61/04; H01J 61/54
IPC 8 full level
H01J 17/30 (2006.01); H01J 17/46 (2006.01); H01J 61/10 (2006.01); H01J 61/54 (2006.01); H01J 63/04 (2006.01)
CPC (source: EP)
H01J 61/547 (2013.01)
Citation (search report)
- [E] DE 19730888 A1 19990128 - BOSCH GMBH ROBERT [DE]
- [XA] PATENT ABSTRACTS OF JAPAN vol. 1995, no. 03 28 April 1995 (1995-04-28)
- [XA] PATENT ABSTRACTS OF JAPAN vol. 1995, no. 03 28 April 1995 (1995-04-28)
- [A] PATENT ABSTRACTS OF JAPAN vol. 018, no. 475 (E - 1601) 5 September 1994 (1994-09-05)
- [A] PATENT ABSTRACTS OF JAPAN vol. 008, no. 167 (E - 258) 2 August 1984 (1984-08-02)
- See references of WO 9840900A1
Designated contracting state (EPC)
BE DE FR GB IT NL
DOCDB simple family (publication)
WO 9840900 A1 19980917; CA 2283824 A1 19980917; EP 1004133 A1 20000531; EP 1004133 A4 20000531; JP 2001514796 A 20010911
DOCDB simple family (application)
US 9804989 W 19980313; CA 2283824 A 19980313; EP 98911636 A 19980313; JP 53986298 A 19980313