EP 1936660 A1 20080625 - HOT CATHODE DISCHARGE LAMP, LAMP UNIT AND DISPLAY
Title (en)
HOT CATHODE DISCHARGE LAMP, LAMP UNIT AND DISPLAY
Title (de)
HEISSKATHODEN-ENTLADUNGSLAMPE, LAMPENEINHEIT UND DISPLAY
Title (fr)
LAMPE A DECHARGE A CATHODE CHAUDE, UNITE DE LAMPE ET DISPOSITIF D'AFFICHAGE
Publication
Application
Priority
- JP 2006318003 W 20060911
- JP 2005265793 A 20050913
Abstract (en)
A hot cathode discharge lamp (20) includes a glass bulb (22) whose cross section perpendicular to the tube axis is flattened in shape, and electrode coils (31a, 31b) arranged within the glass bulb (22) such that the axes thereof are pointed in the major diameter direction of the flattened shape. The length L of the electrode coils (31a, 31b) in the axis direction satisfies the relationship L2<L<L1, where L1 is the major inner diameter of the flattened shape of the glass bulb (22) and L2 is the minor inner diameter thereof. Also, a backlight unit (5) includes the hot cathode discharge lamp (20) as a light source.
IPC 8 full level
H01J 61/067 (2006.01); F21S 2/00 (2006.01); H01J 61/16 (2006.01); H01J 61/30 (2006.01); F21Y 103/00 (2006.01)
CPC (source: EP KR)
H01J 61/067 (2013.01 - KR); H01J 61/0672 (2013.01 - EP); H01J 61/16 (2013.01 - EP); H01J 61/20 (2013.01 - EP); H01J 61/30 (2013.01 - KR); H01J 61/305 (2013.01 - EP); H01J 61/33 (2013.01 - EP); H01J 61/72 (2013.01 - EP); H01J 61/28 (2013.01 - EP)
Citation (search report)
See references of WO 2007032320A1
Designated contracting state (EPC)
DE FR GB NL
DOCDB simple family (publication)
EP 1936660 A1 20080625; CN 101263576 A 20080910; JP WO2007032320 A1 20090319; KR 20080044264 A 20080520; TW 200729275 A 20070801; WO 2007032320 A1 20070322
DOCDB simple family (application)
EP 06797810 A 20060911; CN 200680033637 A 20060911; JP 2006318003 W 20060911; JP 2007535467 A 20060911; KR 20087005538 A 20080306; TW 95133646 A 20060912