Kim Seong-Bok, Park Jae-Hyeung
Opt Lett. 2018 Feb 15;43(4):767-770. doi: 10.1364/OL.43.000767.
We propose a Maxwellian near-to-eye display implemented using a multiplexed holographic optical element. Maxwellian configuration removes the focal cue of the displayed virtual image completely, presenting an always-focused image to the observer regardless of the focal length of the eye. The transparent property of the holographic optical element enables the optical see-through feature, making the proposed near-to-eye display suitable for augmented reality applications. The multiplexing of multiple concave mirrors into a single holographic optical element enlarges the effective eyebox, relaxing the limitation of the conventional Maxwellian displays. Optical experiment confirms that the proposed display can present always-focused images on top of the real environment with 9.2°(H)×5.2°(V) field of view, and 9 mm (H)×3 mm (V) eyebox.
我们提出了一种使用复用全息光学元件实现的麦克斯韦型近眼显示器。麦克斯韦配置完全消除了所显示虚拟图像的焦点线索，无论眼睛的焦距如何，都能向观察者呈现始终聚焦的图像。全息光学元件的透明特性实现了光学透视功能，使得所提出的近眼显示器适用于增强现实应用。将多个凹面镜复用为单个全息光学元件扩大了有效眼盒，放宽了传统麦克斯韦型显示器的限制。光学实验证实，所提出的显示器能够在真实环境之上呈现具有9.2°（水平）×5.2°（垂直）视场和9毫米（水平）×3毫米（垂直）眼盒的始终聚焦图像。
