Projection lamp unit with separable lamp capsule

Claim 1

A projection lamp unit comprising: a reflector having a concave reflecting portion defining a forward opening and a rear, neck portion defining a rear opening therein; a socket member fixedly secured to said reflector relative to said rear opening within said rear neck portion thereof; first and second electrical contacts, each of said contacts including a female receiving portion spacedly positioned within said socket member and having an aperture therein and a male pin portion extending from said socket; and a lamp removably positioned within said socket member through said forward opening of said reflector, said lamp including an envelope for being located substantially within said concave reflecting portion of said reflector when said lamp is fully inserted within said socket member, said envelope including a sealed end portion and a protruding rim portion to enable said envelope to be manually grasped and removed from said socket member through said forward opening of said reflector, and first and second pins projecting from said sealed end portion of said envelope, said first and second pins being located within said apertures within said female receiving portions of said first and second contacts, respectively, in a substantially frictional manner to provide positive electrical connection between said contacts and said pins and alignment of said envelope relative to said concave reflecting portion when said lamp occupies said fully inserted position within said socket member.