Su Yanfeng, Cai Zhijian, Liu Quan, Shi Lingyan, Zhou Feng, Wu Jianhong
J Opt Soc Am A Opt Image Sci Vis. 2018 Aug 1;35(8):1477-1486. doi: 10.1364/JOSAA.35.001477.
In this paper, a binocular holographic three-dimensional (3D) display system combining a single spatial light modulator (SLM) and a grating is proposed and implemented. A synthetic phase-only hologram of the left and right 3D perspective images of an object is calculated by the layer-based Fresnel diffraction method according to the depth information, and uploaded onto the SLM for holographic 3D reconstruction with correct depth cues. The grating is designed and fabricated to guide the reconstructed left and right 3D perspective images to the corresponding eyes. Optical experiments demonstrate that the proposed system can successfully present binocular holographic 3D images with both the accommodation effect and binocular parallax, which enables observation free of the accommodation-vergence conflict and visual fatigue problem.
本文提出并实现了一种结合单个空间光调制器（SLM）和光栅的双目全息三维（3D）显示系统。根据深度信息，采用基于层的菲涅耳衍射方法计算物体左右3D透视图像的合成纯相位全息图，并上传到SLM上进行具有正确深度线索的全息3D重建。设计并制作光栅，将重建后的左右3D透视图像引导到相应的眼睛。光学实验表明，该系统能够成功呈现具有调节效应和双目视差的双目全息3D图像，从而避免了调节-辐辏冲突和视觉疲劳问题。
