(57) Lighting device of the column type, comprising a support structure (1) provided at
the top thereof with an optical space (3), a housing (5) for at least one light source
(7) arranged inside the optical space (3), a light passage screen (9) that makes the
side surface of the optical space (3), a cap (11) of opaque material arranged on top
of the optical space (3), the side wall (13) of the cap (11) covering at least partly
the transparent screen (9), and at least one reflector screen (17) with curved section,
with concavity facing downwards, arranged inside the optical space (3). The bottom
portion of the side wall (13) of the cap (11) exhibits an enlarged outer edge (21)
which operates in combination with the light absorbing means present inside the optical
space (3) for screening all the light beams emitted above the horizontal plane passing
through the centre of gravity of the transparent portion of the screen (9) and/or
for deviating the light beams emitted by the light source (7) and reflected by the
reflector screen (17) downwards.
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