High optical-efficiency integral imaging display with a gradient-aperture parallax barrier

We propose a one-dimensional integral imaging (1DII) display that consists of a display panel and a gradient-aperture parallax barrier. The gradient-aperture parallax barrier is symmetrical, and its slit widths gradually increase from both sides to the middle. The leftmost and rightmost slits are used to fix the viewing angle, whereas the other slits are used to increase the optical efficiency. A prototype of the proposed 1DII display is developed. Its optical efficiency is higher than that of the conventional display, but the viewing angles are the same.     

Crosstalk-free integral imaging display based on double plano-convex micro-lens array

A crosstalk-free integral imaging display consisting of a display panel and double plano-convex micro-lens array is proposed.The double plano-convex micro-lens array includes two micro-lens arrays,A and B.Micro-lens array A is used to eliminate crosstalk by completely reflecting crosstalk lights.Micro-lens array B,located near micro-lens array A,is used to display three-dimensional images.Computer simulations based on ray-tracing are conducted.Crosstalk-free reconstruction images may be clearly observed from the simulation results.     

基于光孔阵列的集成成像三维显示方法

集成成像较小的再现深度一直都限制着集成成像的发展和应用,针对此问题提出了一种增大集成成像再现深度的方法。该方法在微透镜阵列与显示屏之间附加一个光孔阵列,利用光孔阵列限制显示屏上像素发出光线的发散角,从而有效地增大集成成像的再现深度。对集成成像的再现原理进行了深入分析,讨论了光孔直径与集成成像再现深度的关系。采用ASAP光学模拟软件对所提方法和传统方法进行了模拟对比实验,实验结果显示当光孔直径占透镜元节距的64%时,所提方法的再现深度是传统集成成像再现深度的1.5倍,实验结果验证了理论推导的正确性。