P‐9.22: Research on Light‐field Naked‐eye 3D Display Based on Diffraction Optics

This paper studies the naked‐eye 3D display technology based on diffractive optics. A viewpoint modulation plate was designed and fabricated, utilizing the shining Fresnel‐type diffraction optical element (FDOE), achieving a large field of view and low crosstalk for autostereoscopic 3D display. First, the FDOE structure was designed through the phase recovery algorithm to achieve four‐view naked‐eye 3D display, and its optical properties were verified through experiments. Next, a modulation plate containing multiple viewpoints was designed, and its viewing angle light‐field distribution, diffraction efficiency, and crosstalk performance were analyzed through both experimental and simulation approaches. The research results show that the naked‐eye 3D display technology based on diffraction optics has broad application prospects and provides a new solution for improving the visual experience.