(19)
(11) EP 0 484 117 A3

(12) EUROPEAN PATENT APPLICATION

(88) Date of publication A3:
30.12.1992 Bulletin 1992/53

(43) Date of publication A2:
06.05.1992 Bulletin 1992/19

(21) Application number: 91310000.4

(22) Date of filing: 30.10.1991
(51) International Patent Classification (IPC)5: H01J 61/54, H01J 61/82, F21M 3/02, H01J 61/52
(84) Designated Contracting States:
DE FR GB NL

(30) Priority: 01.11.1990 US 608091

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

(72) Inventors:
  • Dever, Timothy Peter
    Fairview Park, Ohio 44126 (US)
  • Davenport, John Martin
    Lyndhurst, Ohio 44124 (US)
  • Allen, Gary Robert
    Chesterland, Ohio 44026 (US)
  • Duffy, Gerald Edward
    Mentor, Ohio 44060 (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) Heat sink for metal halide lamp


    (57) Heat sink means (40) are provided for a metal halide lamp to enable more light output during lamp start-up. A xenon-metal halide lamp employing the heat sink means (40) is disclosed along an with automotive headlamp having this lamp for its light source.






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