Electrode for metal halide lamp with ceramic discharge vessel

Details Electrode for metal halide lamp with ceramic discharge vessel Electrode for metal halide lamp with ceramic discharge vessel

2006-03-22

2010-02-23

Williams, Joseph L (Department: 2889)

Electric lamp and discharge devices

With gas or vapor

Having electrode lead-in or electrode support sealed to...

C313S331000, C445S026000

Reexamination Certificate

active

07667406

ABSTRACT:
Metal halide lamp with ceramic discharge vessel (4), the discharge vessel having two ends (6) which are closed off by stoppers, and an electrically conductive leadthrough (9) being passed through this stopper (12), an electrode (15) having a shank (16), which projects into the interior of the discharge vessel, being secured to the leadthrough. The leadthrough is composed of two portions of different diameters, with the outer portion resting on the end face of the stopper.

REFERENCES:
patent: 4155758 (1979-05-01), Evans et al.
patent: WO 03/060951 (2003-07-01), None

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