Projection lamp unit

Details Projection lamp unit Projection lamp unit

F - Mech Eng,Light,Heat,Weapons

21

V

240/158

F21V 7/04 (2006.01) F21V 7/09 (2006.01) H01K 1/28 (2006.01)

Patent

CA 1245201

-11- PROJECTION LAMP UNIT ABSTRACT 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.

464357

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