Plastic based glass halogen lamp

Claim 1

An unsealed reflector lamp assembly having a replaceable based halogen lamp lockingly engaged in focused position to a reflector comprising, in combination, an electrically insulating base, said lamp having a bulb containing a filament and having lead wires for said filament extending outwardly from said bulb in mutual parallelism and providing sole support of the lamp in said base, said lead wires having intermediate portions integrally formed with fixedly positioned preformed shoulders formed from the material of said lead wires and spaced a first predetermined reference distance from said filament, said base having interior channels through which said lead wires extend, said channels being integrally formed with seat portions located at a predetermined internal position along the length of said channels and complementary to and engaging said lead wire shoulders for positioning said filament a second predetermined reference distance from said base and positioning said bulb in spaced relation from said base; said base having exterior projecting ear means precisely located with respect to said channel seat portions and which serve to reference said base to the focus of the reflector when said based halogen lamp is lockingly engaged to said reflector.