DISPOSITIVO DI ILLUMINAZIONE

A lighting device (1) extends substantially along a first axis (A) and comprises a LED light source (3), which has a substantially hemispheric emission on a side of an emission plane (E), and an optical group (4), which is placed in front of the light source (3); the optical group (4) is configured so as to intercept the light emitted by the light source (3) and generate a light ring, which extends at 360° around the light source (3) on opposite sides of the emission plane (E) and is substantially parallel to a meridian plane (M), which is perpendicular to the emission plane (E) and goes through the axis (A) of the lighting device (1).