Heat removing means to remove heat from electric discharge lamp

Details Heat removing means to remove heat from electric discharge lamp Heat removing means to remove heat from electric discharge lamp

1990-10-15

1992-07-07

Yusko, Donald J.

Electric lamp and discharge devices

With gas or vapor

Envelope with particular structure

313642, 313 17, 313 26, 313 46, 313 44, 313113, 362296, H01J 712, H01J 724, H01J 6122, H01J 6152

Patent

active

051285894

ABSTRACT:
Heat transfer means are disclosed to remove heat from a fused quartz arc tube being employed as the light source in an electric discharge lamp. The heat removal is carried out during lamp operation with a fused quartz protuberance that cooperates to remove heat being conducted through the arc tube walls. Various lamp embodiments are disclosed whereby such fused quartz protuberance is physically disposed adjacent the hot spot region of the arc tube in a xenon-metal halide lamp.

REFERENCES:
patent: 3087083 (1963-04-01), Katz
patent: 4600857 (1986-07-01), Suhar
patent: 4935668 (1990-06-01), Hansler et al.

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