Asymmetric arc chamber for a discharge lamp

Details Asymmetric arc chamber for a discharge lamp Asymmetric arc chamber for a discharge lamp

H - Electricity

01

J

313/10, 313/135

H01J 61/33 (2006.01) H01J 61/02 (2006.01)

Patent

CA 1301237

LD 9582 ASYMMETRIC ARC CHAMBER FOR A DISCHARGE LAMP ABSTRACT OF THE DISCLOSURE A metal halide discharge lamp includes an asymmetric arc tube design which allows a more uniform heating of the arc tube top and bottom wall regions, so that metal halide condensate is distributed over the interior surface of the arc tube in the arc region between the lamp electrodes. This provides a higher density of metal halide constituents in the arc tube so that a generally more efficacious and lower color temperature lamp can be achieved. The presence of halide condensate distributed on the arc tube surface also promotes better lumen maintenance by retarding tungsten transport to the arc tube wall.

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