含三层衍射元件的60°视场折/衍混合头盔目镜(英文)  

Hybrid Diffractive-refractive 60° Field of View Eyepiece with Three-layer Diffractive Optical Element

作　　者：赵亚辉[1,2] 范长江[1] 应朝福[1] 徐建程[1] 

机构地区：[1]浙江师范大学信息光学研究所,浙江金华321001 [2]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

出　　处：《光子学报》2013年第3期266-270,共5页Acta Photonica Sinica

基　　金：The National Natural Science Foundation of Zhejiang Province(No.Y1100524);Zhejiang Normal University Foundation for doctor(No.ZC304009168)

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8mm,出瞳距离为22mm.整个系统重量仅为8g,总长度为26.8mm,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.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.

关 键 词：光学设计 头盔目镜 折 衍射混合 多层衍射光学元件 

分 类 号：O439[机械工程—光学工程]