Real-time color three-dimensional display system using holographic optical elements

Real-time 3D display system using holographic optical elements (HOEs) is a diffractive display based on the reconstruction of parallax rays. This 3D display system consists of a holographic screen consists of HOEs and a spatial light modulator (SLM). Each voxel in 3D space is constructed by the convergence of rays from many pixels on the SLM through the holographic screen. This system can display animated volumetric images such as holography. In this paper, the real-time color 3D display system is described for practical use. This color 3D display system can display animated color volumetric images with viewing angle within 22 degrees.