Low wattage metal halide lamp with inverted domed sleeve

Details Low wattage metal halide lamp with inverted domed sleeve Low wattage metal halide lamp with inverted domed sleeve

1984-10-29

1986-10-28

Moore, David K.

Electric lamp and discharge devices

With temperature modifier

Double wall, jacket or casing for envelope

313634, 313638, H01J 6104, H01J 6118, H01J 6134

Patent

active

046201254

ABSTRACT:
A low wattage metal halide discharge lamp includes an evacuated envelope wherein is disposed a heat reducing member having an arc tube therein. The heat reducing member and the arc tube have a metal band an outer strap member adjacent one another and adjacent an electrode with the metal band, strap member and electrode all electrically connected to an electrical lead of one polarity whereby sodium losses from the arc tube are reduced. Importantly, the evacuated envelope includes a getter and the heat reducing member is in the form of a domed sleeve having an open end directed away from the getters.

REFERENCES:
patent: 4499396 (1985-02-01), Fohl et al.

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