EP 0541413 A1 19930512 - Device for reducing the energy consumption of a light tube without modifying its luminosity.
Title (en)
Device for reducing the energy consumption of a light tube without modifying its luminosity.
Title (de)
Vorrichtung zur Reduzierung des Energieverbrauchs einer Leuchtröhre ohne Änderung der Lichtleistung.
Title (fr)
Dispositif applicable aux lampes à tubes permettant de reduire la consommation d'énergie active sans modification du flux lumineux.
Publication
Application
Priority
AR 32088091 A 19911009
Abstract (en)
This device comprises a lampshade (5) covering the upper half of a fluorescent tube (1), its internal diameter coinciding with the external diameter of the glass of the tube, and this lampshade being associated with a step-down transformer connected to the terminals (4) of the tube. <IMAGE>
Abstract (fr)
Ce dispositif comprend un abat-jour (5) qui couvre la moitié supérieure d'un tube fluorescent (1), son diamètre intérieur coïncidant avec le diamètre extérieur du verre du tube, et cet abat-jour est associé à un abaisseur de tension qui se connecte aux bornes (4) du tube. <IMAGE>
IPC 1-7
IPC 8 full level
F21V 7/00 (2006.01); F21V 17/04 (2006.01); H01J 61/02 (2006.01); H01J 61/30 (2006.01); H01J 61/56 (2006.01); H05B 3/00 (2006.01)
CPC (source: EP US)
F21V 7/005 (2013.01 - EP US); F21V 17/04 (2013.01 - EP US); H01J 61/025 (2013.01 - EP US); H01J 61/56 (2013.01 - EP US); Y10S 315/05 (2013.01 - EP US)
Citation (search report)
- [Y] DE 838796 C 19520512 - SIEMENS AG
- [A] DE 2410037 A1 19740919 - HALONEN EERO DR
- [A] US 4431948 A 19840214 - ELDER DELBERT E [US], et al
- [Y] PATENT ABSTRACTS OF JAPAN vol. 10, no. 367 (E-462)(2424) 9 Décembre 1986 & JP-A-61 163 554 ( MATSUSHITA ELECTRIC IND CO LTD ) 24 Juillet 1986
- [Y] NEUES AUS DER TECHNIK no. 6, 1 Décembre 1963, WURZBURG page 4 'Schaltung zum Betrieb von Hochdruck-Gasentladungslampen mit verschiedener Helligkeit'
Designated contracting state (EPC)
DE ES FR GB IT
DOCDB simple family (publication)
US 5343120 A 19940830; BR 9203952 A 19930427; DE 69216557 D1 19970220; DE 69216557 T2 19970612; EP 0541413 A1 19930512; EP 0541413 B1 19970108; ES 2098474 T3 19970501; JP H05347138 A 19931227; MX 9205814 A 19930701; ZA 927756 B 19930712
DOCDB simple family (application)
US 95906792 A 19921009; BR 9203952 A 19921009; DE 69216557 T 19921009; EP 92402759 A 19921009; ES 92402759 T 19921009; JP 31259792 A 19921009; MX 9205814 A 19921009; ZA 927756 A 19921008