Emergency optical signalling device

Optical signaling device for vehicles or transport means, comprising:

• at least one support element fitted onto a vehicle;
• at least one revolving element arranged on said support element for rotation about a substantially vertical axis;
• drive means acting on said revolving element to promote rotation thereof about said rotation axis;
• one or more optical signaling elements associated with said revolving element and electrically connected to an electric power source for illuminating them, each of said optical signaling elements comprising laser light generators/emitters;
• wherein said revolving element comprises a cylindrical body coaxial with said rotation axis and housing internally thereof said one or more laser light generators/emitters,
• said laser light generators/emitters being arranged in a respective seat with emission hole coaxial therewith, formed on the side surface of said cylindrical body,
• each of said seats and said respective emission holes having a respective longitudinal axis inclined with respect to said rotation axis of said cylindrical body,
• said drive means being so coupled to said revolving element to promote the rotation of said cylindrical body about said rotation axis at a sufficient rotational speed to form a cone of light,
• said cone of light having its base directed towards the plane of travel of said vehicle and its vertex arranged on said rotation axis in such a manner to envelope the body of said vehicle and move at the same speed thereof.