Illumination – Light source and modifier – Including reflector
Patent
1980-12-18
1983-05-17
Walsh, Donald P.
Illumination
Light source and modifier
Including reflector
362 16, 362306, 362341, 362350, 362457, F21V 700
Patent
active
043843190
ABSTRACT:
A projection lighting unit which includes a U-shaped bracket member having an apertured faceplate and a rear upstanding wall, a glass reflector secured to the bracket's faceplate portion and including a concave reflecting portion and a rear neck portion adjacent thereto and including a cylindrical opening therein, a capsule member removably positioned within the reflector's rear opening and including an incandescent projection lamp (e.g., tungsten-halogen) and a cylindrical, metallic base member secured to the sealed end of the lamp, and a biasing flange member including a pair of cam springs which slidably engage the upstanding rear wall of the bracket during rotational insertion of the lamp capsule within the unit's reflector. The unit thus provides for rear removal of the lamp capsule from the glass reflector and bracket components. A separate socket member capable of being attached to the rear of the capsule to effect contact with a pair of contact pins projecting therefrom may also constitute part of the unit.
REFERENCES:
patent: 3852583 (1974-12-01), Puyplat
patent: 4156901 (1979-05-01), Haraden
Blaisdell Ronald G.
Hough Harold L.
Kowalski C. Edward
Fraley Lawrence R.
GTE Products Corporation
Walsh Donald P.
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