Lamp unit having glass reflector member with mount structure

An all glass lamp unit consisting essentially of (i) a molded glass reflector member having a front concave reflecting portion terminating in an elongated hollow cavity portion having inner and outer walls and which protrudes rearwardly from said reflector member, said elongated cavity portion terminating at its rearmost end in a recessed opening and having a foremost end which opens into said reflector portion wherein the opening in said rearmost end is smaller in size than the opening in said foremost end, said rearmost end comprising said recessed opening which is formed at said rearmost end by spaced apart shoulders extending from the inner walls of said cavity portion which, when said lamp unit is assembled, provides a recessed engagement surface for mounting said lamp unit, and (ii) a tungsten halogen lamp permanently secured in said hollow cavity portion with cement so that its light source is positioned at the focal point of said reflector member with lamp inleads projecting through said recessed opening, said cement serving as the sole support for said lamp in directly attaching said lamp to said reflector member, wherein the improvement comprises including additional molded depressions located on opposing exterior surfaces of said elongated cavity portion which cooperate with said recessed engagement surface to more accurately position and physically secure the lamp in use and with said entire cavity portion including said recessed engagement surface and additional molded depressions being formed when said reflector member is initially molded, wherein each of said molded depressions is in the form of a dimple and does not extend completely across the surface in which it is formed and located, thereby positively securing said unit from both longitudinal and transverse movement when secured by said depressions in a lamp mount.