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.