High wattage incandescent lamp with support for a planar segment

Details High wattage incandescent lamp with support for a planar segment High wattage incandescent lamp with support for a planar segment

1977-04-11

1978-03-14

Demeo, Palmer C.

Electric lamp and discharge devices

With optical device or special ray transmissive envelope

Reflector

313273, 313315, H01K 118, H01K 126

Patent

active

040792838

ABSTRACT:
A multihundred watt incandescent projection lamp has a continuous coiled filament in a rectangular area in front of a reflector, the filament comprising folded segments two of which extend substantially parallel from two lead wires into the envelope of the lamp. The coil end turns of the filament telescope over the lead wire ends which comprise the sole electrical supply, the sole support for the filament and also for the reflector.

REFERENCES:
patent: 2042540 (1936-06-01), Manders
patent: 3441774 (1969-04-01), Stone et al.
patent: 3445713 (1969-05-01), Cardwell, Jr.
patent: 3522470 (1970-08-01), Bonazoli et al.
patent: 3544830 (1970-12-01), George et al.
patent: 3555338 (1971-01-01), Scoledge et al.

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