1. A pupil scan apparatus for projecting the image of an object to a location in space where a viewer's eyes are located in a dynamic fashion to follow the pupils, said apparatus comprising: an eye tracking device; a source of light for illuminating sub-apertures matching the pupils' aperture; conditioning optical elements; a spatial light modulator (SLM); optical relay; eyepiece; digital image processor; wherein said apparatus has a bandwidth that is compatible with the viewer's image perception.