Abstract:
There is described a lighting device (100) to be installed outdoors and built into masonry structures comprising: a plurality of light sources (sl-sn), such as LEDs; an optical component (4) facing said light sources (sl-s4) to allow propagation of light radiation; a housing (2) for the light sources (sl-s4) and for the optical component (4) equipped with an opening (8) for the emission of light radiation. The optical component (4) is rigid and is such as to substantially fill a region interposed between the light sources (sl-s4) and the opening (8).