(19)
(11) EP 0 136 684 A3

(12) EUROPEAN PATENT APPLICATION

(88) Date of publication A3:
22.01.1986 Bulletin 1986/04

(43) Date of publication A2:
10.04.1985 Bulletin 1985/15

(21) Application number: 84111688

(22) Date of filing: 29.09.1984
(84) Designated Contracting States:
BE DE FR GB NL

(30) Priority: 03.10.1983 US 538721

(71) Applicant: GTE Products Corporation
 ()

(72) Inventors:
  • Fraley, Lawrence R.
     ()
  • Westlund, Arnold E., Jr.
     ()

   


(54) Projection lamp unit


(57) An improved projection lamp unit including a glass reflector having a concave reflecting surface and a tungsten halogen lamp positioned within the concavity of the reflector. The concave reflecting surface of the reflector is provided with alternately disposed radially extending regions including a series of specular stripes in combination with alternately spaced regions of facets. Preferably four or five stripes and an associated four or five facet regions are provided.






Search report