EP 0062713 A1 19821020 - A method of manufacturing a fluorescent lamp and a fluorescent lamp obtained by this method.
Title (en)
A method of manufacturing a fluorescent lamp and a fluorescent lamp obtained by this method.
Title (de)
Verfahren zur Herstellung einer Leuchtstofflampe und durch dieses Verfahren hergestellte Leuchtstofflampe.
Title (fr)
Méthode pour fabriquer une lampe fluorescente et lampe fluorescente obtenue par cette méthode.
Publication
Application
Priority
EP 81301574 A 19810410
Abstract (en)
A fluorescent lamp and a method of manufacturing a fluorescent lamp are disclosed. The fluorescent lamp (5) has a winding envelope (6) which is made by bending a straight glass tube (10) into a U-shape to form a first bent part (6a) and a pair of first leg parts (6b), followed by bending each of the leg parts of the pair of first leg parts into a second U-shape to form a pair of second bent parts (6c) and two pairs of second leg parts (6d). Electrodes (7) are provided at the ends of the winding envelope. A projection (8) is provided on the first bent part, a quantity of mercury and a quantity of rare gas having been introduced into the envelope.
IPC 1-7
IPC 8 full level
H01J 61/30 (2006.01)
CPC (source: EP)
H01J 61/30 (2013.01)
Citation (search report)
- GB 2033653 A 19800521 - PHILIPS NV
- EP 0000966 A1 19790307 - KONINKL PHILIPS ELECTRONICS NV [NL]
- GB 668259 A 19520312 - BRITISH THOMSON HOUSTON CO LTD
- GB 1503636 A 19780315 - PHILIPS LTD
- GB 1068704 A 19670510 - PHILIPS ELECTRONIC ASSOCIATED
- US 3152278 A 19641006 - HERBERT DZIERGWA, et al
- US 4199708 A 19800422 - LAUWERJSSEN PETRUS C [NL], et al
- US 3551736 A 19701229 - DOEHNER GUNTHER ANTHONY
Designated contracting state (EPC)
DE FR GB IT NL
DOCDB simple family (publication)
EP 0062713 A1 19821020; EP 0062713 B1 19851121; DE 3172957 D1 19860102
DOCDB simple family (application)
EP 81301574 A 19810410; DE 3172957 T 19810410