Incandescent lamp with a carbon cycle and a halogen cycle

Details Incandescent lamp with a carbon cycle and a halogen cycle Incandescent lamp with a carbon cycle and a halogen cycle

2008-07-22

2008-07-22

Guharay, Karabi (Department: 2889)

Electric lamp and discharge devices

With gas or vapor

Incandescent filament lamp

C313S315000, C313S578000

Reexamination Certificate

active

07402952

ABSTRACT:
The incandescent lamp, which uses a carbon cycle process, is equipped with a luminous body which, together with a fill, is introduced in a vacuum-tight manner into a bulb, the luminous body including a metal carbide, the melting point of which is above that of tungsten. The distance between the luminous body and the wall of the bulb is less than 18 mm, with a first cycle process, which is attributed to the carbon, being effected by the use of carbon and hydrogen as fill additive, and a second cycle process, which is attributed to the metal, being effected by the use of halogen.

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