设计了一种采用层叠阵列波导结构的紧凑型穿透式视频眼镜光学系统。光学系统由层叠阵列波导系统、照明系统、目镜系统组成。层叠阵列波导是一种具有角度选择膜系实现穿透式显示的全新光学组合器，可以消除半透半反面波导的鬼像效应；照明系统为LCOS 微显示器提供均匀照明，均匀性为92.3%；目镜系统负责光束的准直，对其调制传递函数、点列图、场曲、畸变和色差等参数进行了分析，结果表明获得了良好的光学性能。该穿透式视频眼镜分辨率为825 pixel×480 pixel，系统总重135 g，在20 mm 出瞳距离和8 mm×8 mm 眼动范围下，实现30°视场，在驱动电路功耗为1 W 的情况下，系统亮度为3000 nit。

A compact see-through video glass optical system based on cascaded waveguide combiner is designed. This optical system is composed of cascaded waveguide combiner, illumination system and eyepiece system. Cascaded waveguide combiner is a new configuration, having an angle selecting film. It can eliminate the ghost images of the semitransparent waveguide. Illumination system for LCOS achieves 92.3% uniformity. Considering modulation transfer function, spot diagram, field curvature, distortion and lateral color, eyepiece system is analyzed. The parameters of the see-through video glasses are listed as follows: LCOS microdisplay resolution: 825 pixel×480 pixel, the total weight of optical system: 135 g. Within a 20 mm exit pupil distance and 8 mm ×8 mm eye motion box, system can achieve 30° field of view, under the drive circuit power consumption of 1 W, the brightness is 3000nit.