Electric lamp and discharge devices – With temperature modifier – Double wall – jacket or casing for envelope
Patent
1990-08-24
1991-03-26
O'Shea, Sandra L.
Electric lamp and discharge devices
With temperature modifier
Double wall, jacket or casing for envelope
313112, H01J 1716, H01J 6135
Patent
active
050032143
ABSTRACT:
An improved metal halide discharge lamp is provided. The improved metal halide includes an arc tube having a pair of electrodes and containing a fill including an inert starting gas, mercury, and metal halides; and an outer envelope enclosing the arc tube. The entire outer surface of the arc tube is coated with a heat reflective material to improve lamp efficiency.
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Keeffe William M.
Krasko Zeya K.
Morris James
Finnegan Martha Ann
GTE Products Corporation
O'Shea Sandra L.
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