头盔显示器在视空间性能评价中的眼睛转动问题研究  

Study of the Rotation of Eye in Optical Assessment of Head-Mounted Displays in Visual Space

作　　者：赵顺龙[1] 王肇圻[1] 

机构地区：[1]南开大学现代光学研究所光电信息技术科学教育部重点实验室,天津300071

出　　处：《光子学报》2007年第1期68-72,共5页Acta Photonica Sinica

基　　金：国家自然科学基金(60577015)资助

摘　　要：以一款由Erfle目镜为目视系统的头盔显示器为例,给出了眼睛转动时其视空间的性能评价方法、计算公式和评价结果.评价内容包括MTF、调节、像散、横向色差和畸变.对眼睛转动和不转动情况下的结果进行了分析比较:由于转动,使得某些视场的MTF、调节等性能指标严重变差,成清晰像的范围明显减小;系统的性能出现了明显的非对称性.结果表明:无法根据眼睛不转动情况下的系统性能来判断转动情况下的性能,而只能通过实际的光线追迹才能获得.Optical assessment of Head-mounted displays（HMDs） in visual space is of significance to predict its usability. The rotation of the eye is an important and complex part. As an example, a head-mounted displays system based on an Erfle eyepiece is assessed in visual space with the rotation of the eye. The method, the formulas and the results are provided. The MTF, accommodation, astigmatism, lateral color and distortion are assessed. The situations with-eye-rotation and without-eye-rotation are analyzed： due to rotation,the performance in certain field decreases, such as MTF and accommodation. The field where a clear image can be produced significantly minishes. The performance of the HMDs appears distinct asymmetrical. It can be concluded that the performance with-eye-rotation cannot be obtained form the performance without-eye-rotation. And it can be obtained only by practical ray tracing. So the assessment with-eye-rotation is indispensable to the assessment of HMDs in visual space.

关 键 词：应用光学 头盔显示器 视空间评价 眼睛转动 

分 类 号：O439[机械工程—光学工程] TH74[理学—光学]