Incandescent lamp with high pressure rare gas filled tungsten-ha

Details Incandescent lamp with high pressure rare gas filled tungsten-ha Incandescent lamp with high pressure rare gas filled tungsten-ha

1983-10-14

1986-05-27

DeMeo, Palmer C.

Electric lamp and discharge devices

With temperature modifier

Double wall, jacket or casing for envelope

313579, 313113, 313312, H01K 134

Patent

active

045917523

ABSTRACT:
An incandescent lamp unit in which a light emitting element of the tungsten-halogen type is placed within an outer, safety protecting transparent envelope. The element, being protected by the outer envelope, is filled with a gas at a high pressure, thereby increasing its efficiency, and the space between the element and the outer envelope is also preferably filled with a gas having good heat conductivity properties. The outer envelope also can have a coating of a material which transmits visible range energy and reflects infrared energy.

REFERENCES:
patent: 2891189 (1959-06-01), Bud et al.
patent: 3138731 (1964-06-01), Beese
patent: 3418512 (1968-12-01), T'jampens et al.
patent: 3869631 (1975-03-01), Anderson et al.
patent: 4017758 (1977-04-01), Almer et al.
patent: 4338540 (1982-07-01), Sovilla
patent: 4366409 (1982-12-01), Nieda et al.

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