Dual-plane augmented reality integral imaging 3D display system based on reflective polarizer and holographic optical element

We propose a dual-plane augmented reality (AR) integral imaging 3D display system based on reflective polarizer and holographic optical element (HOE), achieving a partly full-color display with a simple structure to enhance viewing experience. The system consists of an integral imaging 3D display, a polarizer, a polarization converter, and a combiner consisting of a reflective polarizer and an HOE. Polarization multiplexing and time-division multiplexing methods are used to create two depth planes. A prototype is designed and constructed to prove the feasibility of the proposed system. The prototype can achieve a dual-plane AR 3D display by creating two depth planes at 600 mm in full-color and 1200 mm in green behind the combiner. The proposed method is expected to be applied to medical treatment, education, entertainment, and other fields.