EP 0535311 A1 19930407 - Low power, high pressure discharge lamp.

Title (en)

Low power, high pressure discharge lamp.

Title (de)

Hochdruckentladungslampe kleiner Leistung.

Title (fr)

Lampe à décharge à haute pression de faible puissance.

Publication

EP 0535311 A1 19930407 (DE)

Application

EP 92109933 A 19920612

Priority

DE 4132530 A 19910930

Abstract (en)

A low-power, high-pressure discharge lamp essentially has a filling which contains halides of the metals sodium, scandium and thallium. The ratio of Na-H./Sc-H. is 24:1 at 5, while the ratio of Na-H./Tl-H. at 25 is 73:1. The discharge vessel (2) has a reflection coating (15, 16). <IMAGE>

Abstract (de)

Eine Hochdruckentladungslampe kleiner Leistung besitzt im wesentlichen eine Füllung, die Halogenide der Metalle Natrium, Scandium und Thallium enthält. Das Verhältnis Na-H./Sc-H. liegt bei 5... 24:1, während das Verhältnis Na-H./Tl-H. 25... 73:1 beträgt. Das Entladungsgefäß (2) besitzt eine Reflexionsbeschichtung (15, 16). <IMAGE>

IPC 1-7

H01J 61/12; H01J 61/35; H01J 61/82

IPC 8 full level

H01J 61/20 (2006.01); H01J 61/12 (2006.01); H01J 61/34 (2006.01); H01J 61/35 (2006.01); H01J 61/82 (2006.01)

CPC (source: EP KR US)

H01J 61/12 (2013.01 - KR); H01J 61/125 (2013.01 - EP US); H01J 61/35 (2013.01 - EP US); H01J 61/827 (2013.01 - EP US)

Citation (search report)

[AD] EP 0276514 A1 19880803 - PHILIPS CORP [US]
[AD] EP 0215524 B1 19890726
[A] US 3852630 A 19741203 - WESSELINK G, et al
[A] US 3514659 A 19700526 - GUNGLE WARREN C, et al
[A] FR 2627627 A1 19890825 - GEN ELECTRIC [US]
[AD] EP 0173235 A2 19860305 - GTE PROD CORP [US]
[A] FR 2270673 A1 19751205 - PHILIPS NV [NL]
[AD] FR 2373157 A1 19780630 - PATENT TREUHAND GES FUER ELEKTRISCHE GLUEHLAMPEN MBH [DE]
[A] EP 0399288 A2 19901128 - GEN ELECTRIC [US]

Designated contracting state (EPC)

DE FR GB IT NL

DOCDB simple family (publication)

EP 0535311 A1 19930407; EP 0535311 B1 19940316; CA 2079438 A1 19930331; CN 1047689 C 19991222; CN 1073804 A 19930630; DE 4132530 A1 19930401; DE 59200089 D1 19940421; HU 214135 B 19971229; HU 9202811 D0 19921130; HU T62422 A 19930428; JP H05205697 A 19930813; KR 100232590 B1 19991201; KR 930006808 A 19930421; US 5363007 A 19941108

DOCDB simple family (application)

EP 92109933 A 19920612; CA 2079438 A 19920929; CN 92111588 A 19920926; DE 4132530 A 19910930; DE 59200089 T 19920612; HU 9202811 A 19920901; JP 28533592 A 19920929; KR 920014497 A 19920812; US 92078292 A 19920728