Gas-filled arc discharge lamp and a method of making thereof

Details Gas-filled arc discharge lamp and a method of making thereof Gas-filled arc discharge lamp and a method of making thereof

2005-02-01

2005-02-01

Patel, Ashok (Department: 2879)

Electric lamp and discharge devices

With gas or vapor

Having electrode shield

C313S239000, C313S045000, C313S292000

Reexamination Certificate

active

06850008

ABSTRACT:
A gas discharge lamp having a translucent envelope enclosing a light emitting assembly that includes a baffle and an anode separated by one or more spacers made of an electrically insulating material such as ceramic, which are oriented towards a heated cathode to receive electrons emitted therefrom. Each spacer has a front surface, a rear surface, a top surface and a bottom surface including a transverse cavity formed between the front and rear surfaces to permit electrons to flow through. The cavity extends from a first through-hole in the front surface to a second through-hole in the rear surface of the spacer. Further, the cavity includes a gap for allowing conductive materials that may sputter or evaporate from the anode or the baffle to escape from the cavity to prevent short circuiting between the anode and the baffle.

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