用于人工因素-目视系统参量研究的折-衍混杂系统

Hybrid Refractive-Diffractive System for Research of Visual System's Parameters on Human Factors

基于 Erfle目镜设计了一个折 -衍混杂目镜 ,该目镜不仅在像差特性有很大改善 ,而且在结构上更趋向轻、小 ,其焦距、视场、出瞳距离及出瞳直径均满足头戴显示系统 (HMDs)的要求 ,镜头直径亦满足双目系统筒间距的要求 ;同时选取 Cooke3片镜作为中继物镜 ,对 2 5 4mm液晶显示屏成像 ,构成了用于人因素 -目视系统参量研究的折 -衍混杂系统 ,并且满足系统参量可调的要求。

Based on one traditional Erfle eyepiece,we designed a hybrid refractive-diffractive eyepiece,which is then combined with a suitable Cooke-triplet.The Cooke-triplet,working as relay objective,views the image on a 10-inch-size LCD.So the hybrid refractive-diffractive system for research of visual system's parameters on human factors was achieved,which optical parameters can be adjusted.The maximal lateral color aberration of the hybrid eyepiece drops more than one order in magnitude,the transverse ray fan aberration reduces 70 %,51 % and 34 % in zero,0.707 and maximal fiele of view,respectively,while the total track reduces to 2/3 and the weight reduces to 1/8 compared with the Erfle eyepiece.