Geometric optical waveguide display can significantly miniaturize the augmented reality eyeglasses, but suffers from the ghost image. In this paper, a method using surface micro-reflector array is proposed, which can dramatically suppress the ghost image. The transmission and expansion of the light bearing image are completed by using planar waveguide and micro-reflector array embedded in the surface layer of waveguide. The image quality is improved by using the dual channel to eliminate ghost image. The imaging process of optical system is modeled and simulated. The surface micro-reflector array waveguide element of 3 mm thickness is prepared for verification. The whole optical system has the advantages of simple structure, easy preparation and high structural strength. The display field of view is shown to be 25° × 25°, and the size of the full field of view area is 15 mm with even light distribution. What's more, the uniformity of imaging intensity is better than 20%, and the image is clear without ghost image, which can effectively realize the fusion of the virtual image and the real environment. Thus, the efficiency of augmented reality is greatly improved, and the danger of human eye safety is effectively avoided.

中文翻译：

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用于增强现实显示的表面微反射器阵列

几何光波导显示器可以使增强现实眼镜显着小型化，但存在重影问题。本文提出了一种利用表面微反射器阵列的方法，可以显着抑制重影。利用平面波导和嵌入波导表层的微反射器阵列来完成承载光图像的传输和扩展。使用双通道消除重影，提高图像质量。对光学系统的成像过程进行建模和仿真。准备3mm厚的表面微反射器阵列波导元件进行验证。整个光学系统具有结构简单、制备容易、结构强度高等优点。显示视野显示为25°×25°，全视场面积15mm，配光均匀。成像强度均匀度优于20%，图像清晰无重影，可有效实现虚像与真实环境的融合。从而大大提高了增强现实的效率，有效避免了人眼安全的危险。