Global Patent Index - EP 0990259 A1

EP 0990259 A1 2000-04-05 - FLUORESCENT LAMP WITH SPACERS AND LOCALLY REDUCED LUMINESCENT MATERIAL LAYER THICKNESS

Title (en)

FLUORESCENT LAMP WITH SPACERS AND LOCALLY REDUCED LUMINESCENT MATERIAL LAYER THICKNESS

Title (de)

LEUCHTSTOFFLAMPE MIT ABSTANDSHALTERN UND LOKAL VERDÜNNTER LEUCHTSTOFFSCHICHTDICKE

Title (fr)

TUBE FLUORESCENT COMPORTANT DES ELEMENTS D'ECARTEMENT ET PRESENTANT UNE EPAISSEUR DE COUCHE DE LA SUBSTANCE FLUORESCENTE LOCALEMENT REDUITE

Publication

EP 0990259 A1 (DE)

Application

EP 99945732 A

Priority

  • DE 9901093 W
  • DE 19817476 A

Abstract (en)

[origin: DE19817476A1] Disclosed is a fluorescent lamp with spacers (6) for supporting a wall (2) of the discharge tank, wherein the luminescent material layer (3) has a reduced thickness (8) in the vicinity of the spacer (6).

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

H01J 61/30; H01J 65/00; H01J 65/04

IPC 8 full level (invention and additional information)

H01J 61/30 (2006.01); H01J 65/00 (2006.01); H01J 65/04 (2006.01)

CPC (invention and additional information)

H01J 65/00 (2013.01); H01J 61/30 (2013.01); H01J 65/046 (2013.01)

Citation (search report)

See references of WO 9954914A1

Designated contracting state (EPC)

BE DE FR GB IT NL

EPO simple patent family

DE 19817476 A1 19991104; DE 19817476 B4 20040325; CA 2295161 A1 19991028; CA 2295161 C 20070724; EP 0990259 A1 20000405; EP 0990259 B1 20040630; HU 0003837 A2 20010228; HU 0003837 A3 20030228; HU 224261 B1 20050728; JP 2000513497 A 20001010; JP 3437185 B2 20030818; KR 100351341 B1 20020905; KR 20010013925 A 20010226; TW 416081 B 20001221; US 6249079 B1 20010619; WO 9954914 A1 19991028

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