EP 0886881 B1 20000614 - GAS DISCHARGE LAMP, IN PARTICULAR FOR MOTOR-VEHICLE HEADLIGHTS
Title (en)
GAS DISCHARGE LAMP, IN PARTICULAR FOR MOTOR-VEHICLE HEADLIGHTS
Title (de)
GASENTLADUNGSLAMPE, INSBESONDERE FÜR KRAFTFAHRZEUG-SCHEINWERFER
Title (fr)
LAMPE LUMINESCENTE A GAZ, NOTAMMENT POUR PHARE DE VEHICULE
Publication
Application
Priority
- DE 9700423 W 19970306
- DE 19610387 A 19960316
Abstract (en)
[origin: DE19610387A1] The invention relates to a gas discharge lamp, in particular for motor-vehicle headlights, which has a maintaining-arc vessel (10) consisting of glass or the like and containing a gas. Two main electrodes (17, 18) protrude into said vessel by way of gas-tight electrode bushings (15, 16). A maintaining-arc distance is provided between the end regions of the main electrodes (17, 18), which regions are arranged in the maintaining-arc vessel (10), and an arc (19) forms along said maintaining-arc distance during operation. To achieve the lowest possible striking voltage, means for producing a creepage distance are provided along the inner vessel wall, or a spark gap (32), smaller than the maintaining-arc distance, in the form of the starting distance which is separate from the maintaining-arc distance.
IPC 1-7
IPC 8 full level
H01J 61/54 (2006.01)
CPC (source: EP US)
H01J 61/54 (2013.01 - EP US); H01J 61/545 (2013.01 - EP US); H01J 61/547 (2013.01 - EP US)
Designated contracting state (EPC)
DE FR GB IT
DOCDB simple family (publication)
DE 19610387 A1 19970918; DE 59701881 D1 20000720; EP 0886881 A1 19981230; EP 0886881 B1 20000614; JP 2000506672 A 20000530; US 6445129 B1 20020903; WO 9735335 A1 19970925
DOCDB simple family (application)
DE 19610387 A 19960316; DE 59701881 T 19970306; DE 9700423 W 19970306; EP 97916328 A 19970306; JP 53302197 A 19970306; US 14295499 A 19990304