Lighting device and stage light fixture comprising a plurality of such lighting devices

A lighting device that produces scenic effects comprising:

• a light source assembly;
• a light guide extending along a longitudinal axis and coupled to the light source assembly that defines a defined optical path;
• a primary mirror arranged along the longitudinal axis facing the light source assembly to reflect the light beam coming out from the light guide;
• and
• a secondary mirror facing the primary mirror to reflect the light beam reflected by the primary mirror towards an emission area surrounding the primary mirror,
• wherein a primary reflecting surface of the primary mirror has at least one first portion having a first hyperbolic shape or a first aspherical shape of even order and degree equal to or greater than four and a secondary reflecting surface of the secondary mirror has at least one second portion having a second hyperbolic shape or a second aspherical shape of even order and degree equal to or greater than four, and
• the primary mirror is surrounded by a hood element, which diverges towards the light source assembly and is configured to prevent loss of light radiation.