Capsule light source for electric lamp

Details Capsule light source for electric lamp Capsule light source for electric lamp

1986-07-07

1988-03-01

Moore, David K.

Electric lamp and discharge devices

With optical device or special ray transmissive envelope

Reflector

313318, 313315, 313578, H01J 516, H01J 548, H01J 550

Patent

active

047288493

ABSTRACT:
A light-emitting capsule for use in a reflector-type electric lamp utilized in such applications as display and track lighting. The capsule includes a hollow bulb portion containing a light source (coiled filament or arc) therein and an elongated sealed end including a flattened, narrow width segment and a protruding end segment. The end segment, preferably of similar configuration (cylindrical) as the bulb, is adapted for engaging the internal walls of the reflector's central opening to facilitate capsule positioning within such a reflector in both a precise and stable fashion. Additionally, the bulb portion is also capable of similar engagement to even further assure stabilized capsule orientation.

REFERENCES:
patent: 4101798 (1978-07-01), Notelteirs et al.
patent: 4156271 (1979-05-01), Vercellotti
patent: 4243907 (1981-01-01), Kohl et al.
patent: 4371807 (1983-02-01), Eckhardt
patent: 4386292 (1983-05-01), Rothwell et al.
patent: 4567397 (1986-01-01), Wilhelm et al.
patent: 4608624 (1986-08-01), Blaisdell et al.

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