用于微电子硅芯片液晶显示的反射式中继目视系统

Head-Mounted Display With Reflective Relay System Using Micro-Liquid Crystal On Silicon

设计了用对角为 18mm的微电子硅芯片液晶显示器、6 0°视场角的反射中继头盔显示系统。该系统由一个常用的艾尔弗 (Erfle)接目镜和一个反射中继镜组成。反射中继镜和接目镜的场曲异号 ,因此相互部分抵消 ,系统具有较小的场曲和像散。中继系统的采用 ,不仅保证了头盔显示的特定规格要求 ,诸如出瞳直径和出瞳距离 ,而且为反射式微电子硅芯片液晶显示器的照明光源提供了空间。该系统像差较小 ,尺寸和重量合理 。

A head mounted display, which combines a Erfle eyepiece with a reflective relay system and uses a micro display of the reflective liquid crystal on silicon with the diagonal size 18mm, has been designed. The sign of the field curvature, either the sagittal or the tangential, of the relay system is on the contrary to that of the eyepiece, which makes the system possess smaller field curvature and astigmatism. The adoption of the relay lens makes the system not only suitable for the micro display with smaller size but also offering enough space for light source in the reflective micro display. The system is with smaller aberration, enough exit pupil diameter and eye relief, and reasonable size and weight in the specific application of head mounted display.