A metal halide lamp is disclosed comprising an elongated discharge vessel,
preferably made of a ceramic material, surrounded by an outer envelope
and having a wall which encloses a discharge space containing an inert
gas, such as xenon, and an ionizable filling, wherein at both ends in
said discharge space an electrode is arranged between which a discharge
arc can be maintained along a discharge path, wherein one end of the
discharge vessel is mounted in a mounting base, said lamp comprising a
band-shaped light-shielding strip extending laterally of the discharge
path, and a lead-back conductor supplying current from the mounting base
to the electrode at the other end of the discharge vessel, wherein, seen
in cross section, the lead-back conductor is positioned within the sector
defined by the two lines through the center of the discharge vessel and
the edges of said strip. Also a metalhalide lamp is disclosed wherein the
light-shielding strip is a conductive strip, and the antenna or the
lead-back conductor is integrated with said strip. Furthermore a
metal-halide lamp is disclosed wherein the lead-back wire is provided
inside the wall of the outer envelope.