The Heliodisplay is an air-based display using principally air that is already present in the operating environment (room or space). The system developed...

air. Several commercial systems exist, such as FogScreen, Displair and Heliodisplay. There is also an open-source variant being developed called Hoverlay...

controllers. Floating Interactive Display: at least two commercial systems (Heliodisplay and FogScreen) offer interactive "floating interfaces" which display...