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| 含三层衍射元件的60°视场折/衍混合头盔目镜 | |
| 引用本文： | 赵亚辉,范长江,应朝福,徐建程.含三层衍射元件的60°视场折/衍混合头盔目镜[J].光子学报,2013,42(3):266-270. |
| 作者姓名： | 赵亚辉 范长江 应朝福 徐建程 |
| 作者单位： | 1. 浙江师范大学信息光学研究所,浙江金华321001;浙江师范大学浙江省光信息检测与显示技术研究重点实验室,浙江金华321001 2. 浙江师范大学信息光学研究所,浙江金华,321001 |
| 摘 要： | 设计了一种含有三层衍射光学元件的60°视场头盔显示目镜,并给出了系统优化过程和结果.在整个视场和设计波段范围内三层衍射光学元件的衍射效率均在90%以上,提高了系统的光能利用率和像的对比度.此目镜光学系统的出瞳直径为8 mm,出瞳距离为22 mm.整个系统重量仅为8 g,总长度为26.8 mm,结构轻便紧凑,具有良好的光学性能,满足头盔显示目镜的使用需求. |
| 关 键 词： | 光学设计 头盔目镜 折/衍射混合 多层衍射光学元件 |
| 收稿时间： | 2012-10-09 |
| 修稿时间： | 2012-12-19 |
Hybrid Diffractive-refractive 60° Field of View Eyepiece with Three-layer Diffractive Optical Element |
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| ZHAO Ya-hui , FAN Chang-jiang , YING Chao-fu , XU Jian-cheng.Hybrid Diffractive-refractive 60° Field of View Eyepiece with Three-layer Diffractive Optical Element[J].Acta Photonica Sinica,2013,42(3):266-270. | |
| Authors: | ZHAO Ya-hui FAN Chang-jiang YING Chao-fu XU Jian-cheng |
| Institution: | 1. Institute of Information Optics, Zhejiang Normal University, Jinhua, Zhejiang 321004, China; 2. The Key Laboratory of Researching Optical Information Detecting and Display Technology, Zhejiang Normal University, Jinhua, Zhejiang 321004, China |
| Abstract: | A hybrid diffractive-refractive 60° field of view (FOV) eyepiece for head-mounted display (HMD) with a three-layer diffractive optical element (DOE) is designed, and the design performance is given. The diffraction efficiency of the three-layer diffractive optical element is larger than 90% at each FOV and wavelength in designed band, so that the utilization rate of energy and contrast ratio of image can be improved. The system has an 8 mm exit pupil and a 22 mm eye relief, and the feature of 8 g weight and 26.8 system size guarantee the lightness and compactness of the structure, which are well to be a eyepiece for HMD. |
| Keywords: | Optical design Eyepiece for head-mounted display Hybrid diffractive/refractive Three-layer diffraction element |
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