Ostuni's brother Angelo, together with Franco Buzzi, were the first to make O-Luce known beyond the borders of Italy and were key in shaping light design in the early 1950s. New materials, such as Perspex and industrial glass, or new light source technologies such as the Cornalux or halogen light, had a decisive influence on the design of modern lighting and here too Ostuni and his young designers, above all Tito Agnoli, Joe Colombo and Bruno Gecchelin, were at the forefront of lighting design.