(19)
(11) EP 0 173 995 A3

(12) EUROPEAN PATENT APPLICATION

(88) Date of publication A3:
12.10.1988 Bulletin 1988/41

(43) Date of publication A2:
12.03.1986 Bulletin 1986/11

(21) Application number: 85111055

(22) Date of filing: 02.09.1985
(84) Designated Contracting States:
BE DE FR GB NL

(30) Priority: 04.09.1984 US 647287

(71) Applicant: GTE Products Corporation
 ()

(72) Inventors:
  • Westlund, Arnold E., Jr.
     ()
  • Powers, Ward H.
     ()
  • Buschmann, Jeffrey P.
     ()

   


(54) Bridgeless tungsten halogen lamp


(57) A single-ended, tungsten halogen lamp having a tubular hard glass envelope containing an inert gas and a halogen, preferably bromine, therein. An improved bridgeless support structure is provided in which a wire support is attached to one end of a pair of filament coils. The wire support extends in two directions from the point of attachment and includes two extension portions which are each secured in the press-sealed base portion of the envelope to provide a fixed filament support with improved shock resistant capabilities and with reduced possibility of contamination due to elimination of the bridge element. A method of making the lamp is also described.






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