Global patent index - EP 0990262 A1

EP 0990262 A1 2000-04-05 - DISCHARGE LAMP WITH DIELECTRICALLY IMPEDED ELECTRODES

Title (en)

DISCHARGE LAMP WITH DIELECTRICALLY IMPEDED ELECTRODES

Title (de)

ENTLADUNGSLAMPE MIT DIELEKTRISCH BEHINDERTEN ELEKTRODEN

Title (fr)

LAMPE A DECHARGE A ELECTRODES PROTEGEES PAR UN DIELECTRIQUE

Publication

EP 0990262 A1 (DE)

Application

EP 99911602 A

Priority

  • DE 9900450 W
  • DE 19817475 A

Abstract (en)

[origin: DE19817475A1] The discharge lamp has a gas-filled tubular discharge vessel with three or more elongate electrodes (3,4) which fulfill the equation -s/a is greater than or equal to 0.1, where s is the maximum distance between a connecting line of an electrode pair and the nearest wall of the discharge vessel (2), and a is the mutual separation of the electrode of this electrode pair. An Independent claim is also included for an illumination system using a fluorescent lamp and a pulse voltage source.

IPC 1-7 (main, further and additional classification)

H01J 65/04; H01J 65/00

IPC 8 full level (invention and additional information)

H01J 65/00 (2006.01); H01J 65/04 (2006.01)

CPC (invention and additional information)

H01J 65/046 (2013.01); H01J 65/00 (2013.01)

Citation (search report)

See references of WO 9954917A1

Designated contracting state (EPC)

AT BE DE FR GB IT NL

EPO simple patent family

DE 19817475 A1 19991028; DE 19817475 B4 20040415; AT 264547 T 20040415; CA 2294850 A1 19991028; CA 2294850 C 20070925; EP 0990262 A1 20000405; EP 0990262 B1 20040414; HU 0002504 A2 20001128; HU 0002504 A3 20011228; HU 224080 B1 20050530; JP 2002505801 A 20020219; KR 100602395 B1 20060720; KR 20010014032 A 20010226; TW 434641 B 20010516; US 6310442 B1 20011030; WO 9954917 A1 19991028

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