Holographic image transfer using wave optics simulation for AR waveguide

Waveguide holography has been actively researched for augmented reality (AR) near-eye displays (NED). However, observing computer-generated hologram (CGH) images representing three-dimensional (3D) scenes in the waveguide platform reveals challenges such as multiple 3D image replications and a very limited eye-box. In this presentation, we propose the anamorphic computer-generated hologram (CGH) synthesis algorithm that leverages the structural characteristics of waveguide type NED to simultaneously expand the eye-box and allow the user to perceive the depth of the image without multiple image replication. Furthermore, using the wave propagation method (WPM), we analyze the phase distribution over a large area for a real-sized waveguide-based near-eye display structure and provide precise numerical simulations that agree to experimental observation of anamorphic CGHs.