Illumination – Light source and modifier – Ionized gas or vapor light source
Patent
1983-08-25
1985-02-12
Walsh, Donald P.
Illumination
Light source and modifier
Ionized gas or vapor light source
362350, 65 65, F21V 700
Patent
active
044995261
ABSTRACT:
A molded glass reflector member for a lamp unit employing a tungsten halogen lamp as the light source is disclosed having a recessed opening at its base end and which further provides an engagement surface for mounting said lamp unit. Specifically, said improved lamp unit includes a molded glass reflector member terminating at its base end in an elongated hollow cavity protruding from the rear side of said reflector member, said cavity having a recessed opening of smaller size at the rearmost end which also provides a recessed engagement surface for mounting said lamp, and a tungsten halogen lamp secured in said hollow cavity so that its light source is positioned at the focal point of said reflector member and the lamp inleads project through said recessed opening. In a preferred embodiment, said recessed opening is formed by spaced apart shoulders extending from the inner walls of the protruding hollow cavity.
REFERENCES:
patent: 2394116 (1946-02-01), Snyder
patent: 3314331 (1967-04-01), Wiley
patent: 3369883 (1968-02-01), Smith
patent: 4021659 (1977-05-01), Wiley
General Electric Company
Jacob Fred
McDevitt John F.
Schlamp Philip L.
Walsh Donald P.
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