Wang Zi, Zhang Xu, Lv Guoqiang, Feng Qibin, Ming Hai, Wang Anting
Opt Express. 2021 Feb 15;29(4):4927-4935. doi: 10.1364/OE.418329.
The holographic Maxwellian display is a promising technique for augmented reality (AR) display because it solves the vergence-accommodation conflict while presenting a high-resolution display. However, conventional holographic Maxwellian display has the inherent trade-off between depth of field (DOF) and image quality. In this paper, two types of holographic Maxwellian displays, the spherical wave type and the plane wave type, are proposed and analyzed. The spherical wavefront and the plane wavefront are produced by a spatial light modulator (SLM) for Maxwellian display. Due to the focusing properties of different wavefronts, the two types of display have complementary DOF ranges. A hybrid approach combining the spherical wavefront and plane wavefront is proposed for a large DOF with high image quality. An optical experiment with AR display is demonstrated to verify the proposed method.
全息麦克斯韦显示器是一种很有前途的增强现实（AR）显示技术，因为它在呈现高分辨率显示的同时解决了辐辏-调节冲突。然而，传统的全息麦克斯韦显示器在景深（DOF）和图像质量之间存在固有的权衡。本文提出并分析了两种类型的全息麦克斯韦显示器，即球面波型和平板波型。球面波前和平板波前由用于麦克斯韦显示的空间光调制器（SLM）产生。由于不同波前的聚焦特性，这两种类型的显示器具有互补的景深范围。为了实现大景深和高图像质量，提出了一种结合球面波前和平板波前的混合方法。通过AR显示的光学实验对所提出的方法进行了验证。
