Electrodeless lamp

Details Electrodeless lamp Electrodeless lamp

2005-02-15

2005-02-15

Paumen, Gary (Department: 2833)

Electric lamp and discharge devices

With gas or vapor

Envelope with particular structure

C315S344000

Reexamination Certificate

active

06856092

ABSTRACT:
A lamp1has a body2of sintered alumina ceramic material and an artificial sapphire window3. The body2is initially molded in green state and the window is pressed into a front recess4. The combination is fired at a temperature of the order of 1500° C., to fuse the body into a coherent pressure-tight state with the window. After partial cooling to the order of 600° C., a pellet of excitable material is added through a rear, charging aperture5. A disc6of ceramic with frit7is placed over the aperture. The disc is irradiated by laser to fuse the frit and the disc to the body, thus sealing the excitable material into the lamp.

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