单波长近眼显示眼镜

Single Wavelength Near-Eye Display Glasses

为适应单色增强现实光学系统体积更小、更易佩戴、视场更大、成像更清晰明亮的要求,文中基于双光栅和平面波导技术原理,完成了光学系统的设计和显示效果评价。基于Zemax软件实现了目镜光学系统、耦合光学系统、平面波导系统和耦合出系统模型优化及建立。以真实图像传输为目标,对仿真结果进行实验验证。实验研究表明:在单波长为532 nm,出瞳距离为8 mm条件下,系统结构正确合理,可以实现20°视场和10 mm的大出瞳显示,图像相似度为34.8。

In order to make the monochrome augmented reality optical system smaller in size,easier to wear,and have a larger field of view and clearer and brighter imaging,the design of an optical system and the evaluation of its display effect are completed based on the principles of double grating and planar waveguide.The models of eyepiece optical system,coupling optical system,planar waveguide system and coupling out system are optimized and built based on Zimax software.Taking the real image transmission as the goal,the simulation results are verified experimentally.Experiment shows that when the single wavelength is 532 nm and the yield distance is 8 mm,the system structure is correct and reasonable,which can realize a 20°field of view and 10 mm large exit pupil display,with the image similarity being 34.8.