Holophane

Holophane lamp ball diameter 50 cm. To be placed on a car brake or to be suspended from the ceiling with a one-metre chain. Possibility also in diameter 40cm. From the mid-1920s, the sa holophane plays the leading roles in french public lighting the history of the holophane company begins in paris in 1893. The french engineer andré blondel, with the help of the greek engineer spiridion psaroudaki, invented "prismatic molded glass". This process uses the principle of light diffraction. From the mid-1920s, the sa holophano played the leading roles in french public lighting model 50cm diameter on metal base.