Yang Shenwu, Sang Xinzhu, Yu Xunbo, Gao Xin, Liu Li, Liu Boyang, Yang Le
Opt Express. 2018 Dec 10;26(25):33013-33021. doi: 10.1364/OE.26.033013.
Large-scale three-dimensional (3D) display can evoke a great sense of true presence and immersion. Nowadays, most of the large-scale autostereoscopic displays are based on parallax barrier with view zone jumping, which also sacrifices much brightness and leads to uneven illumination. With a 3840 × 2160 LED panel, a large-scale horizontal light field display based on aspheric lens array (ALA) and holographic functional screen (HFS) is demonstrated, which can display high quality 3D image. The HFS recomposes the light distribution, while the ALA improves the quantity of perspective information in a horizontal direction by using vertical pixels and it can suppress the aberration that is mainly caused by marginal light rays. The 162-inch horizontal light field display can reconstruct 3D images with the depth range of 1.5 m within the viewing angle of 40°. The feasibility of the proposed display method is verified by the experimental results.
大规模三维（3D）显示能够唤起强烈的真实感和沉浸感。如今，大多数大规模自动立体显示器基于视差屏障且伴有视区跳跃，这也牺牲了大量亮度并导致光照不均匀。利用一块3840×2160的LED面板，展示了一种基于非球面透镜阵列（ALA）和全息功能屏幕（HFS）的大规模水平光场显示器，其能够显示高质量的3D图像。HFS重新组合光分布，而ALA通过使用垂直像素在水平方向上增加透视信息的数量，并且它能够抑制主要由边缘光线引起的像差。该162英寸水平光场显示器能够在40°视角范围内重建深度范围为1.5米的3D图像。实验结果验证了所提出显示方法的可行性。
