(19)
(11) EP 0 639 874 A3

(12) EUROPEAN PATENT APPLICATION

(88) Date of publication A3:
08.05.1996 Bulletin 1996/19

(43) Date of publication A2:
22.02.1995 Bulletin 1995/08

(21) Application number: 94305609.3

(22) Date of filing: 28.07.1994
(51) International Patent Classification (IPC)6: H01R 33/08, F21S 5/00, F21V 19/00, H01R 33/88
(84) Designated Contracting States:
DE FR GB IT

(30) Priority: 10.08.1993 US 105209

(71) Applicant: GENERAL ELECTRIC COMPANY
Schenectady, NY 12345 (US)

(72) Inventors:
  • Hammer, Edward Eugene
    Mayfield Village, Ohio 44143 (US)
  • Yandek, Edward Martin
    Cleveland Heights, Ohio 44118 (US)

(74) Representative: Pratt, Richard Wilson et al
London Patent Operation G.E. Technical Services Co. Inc. Essex House 12/13 Essex Street
London WC2R 3AA
London WC2R 3AA (GB)


(56) References cited: : 
   
       


    (54) Multi-array twin tube lamps


    (57) A multi-array twin tube lamp assembly allows for increased luminous output in a compact volume. The lamp assembly comprises multiple twin tube lamps, each lamp having an electrode structure and independent discharge path. In one embodiment, the base may be modified to allow the multiple twin tube lamps to be assembled in closed proximity. Alternatively, the lampholders may be modified to allow the multiple twin tube lamps to be assembled in close proximity. The multi-array lamp arrangement may be operated at more than one discrete light level, with each lamp having its own separate voltage. Twin tube lamps may be connected electrically in parallel to essentially achieve extended lamp life.









    Search report