Compact collimated display system using an aspherical screen combined with interaction

A compact collimated display system using an aspherical screen with a concave mirror is proposed. As the collimated display can provide a long viewing distance for the observer, it is commonly used for personal virtual flight simulators. To deliver a collimated image, the conventional collimated display requires a large system, but by using an aspherical screen with a concave mirror, the system size can be diminished. In this paper, a method of designing the compact collimated display system is demonstrated with simulation and experiment results. Also, a floating display and a depth camera for detecting hand gestures were combined with the proposed system for interaction.