Omnidirectional-view three-dimensional display based on rotating selective-diffusing screen and multiple mini-projectors

A new type of omnidirectional-view 3D display is proposed, which is composed of a rotating selective-diffusing screen and multiple mini-projectors. A selective-diffusing screen using two field lenses and one lenticular is developed and analyzed. A rotation aperture pupil structure is designed to ensure the accurate synchronization between the projectors and the rotating screen. Correct 2D images are projected on the screen by different miniprojectors, whereas the screen rotates to form the light field 3D image using the effect of human vision persistence. This method is verified by experimental results, and a touchable vivid color 3D image floating in the space above the system with correct occlusion and smooth parallax is demonstrated by the prototype.