典型文献
Freeform OST-HMD system with large exit pupil diameter and vision correction capability
文献摘要：
Compactness and light weight,large exit pupil diameter and distance,small distortion for virtual image,and see-through light paths are pivotal factors to achieve a better,wearable experience of optical see-through head-mounted displays(OST-HMDs).In addition,light efficiency of the virtual image light path is an important factor for heat dissipation in HMD devices.This paper presents a new type of OST-HMD optical system that includes three wedge-shaped freeform prisms and two symmetric lenses.Based on a 0.71 in.microdisplay,an OST-HMD prototype with a diagonal field of view(FOV)of 45.3°,an F-number(F/#)of 1.8,an exit pupil size of 12 mm×8 mm,and an eye relief of 18 mm is demonstrated.The maximum value of distortion of the final system is 0.6％and 0.4％for virtual image and see-through light path,respectively.The overall dimension of the optical system per eye is no larger than 30 mm(width)×40 mm(height)×14 mm(thickness),and the weight of the optical module including lenses,holder,and microdisplay is 12.8 g.The light efficiency of the virtual image light path is up to 50％higher than those of other OST-HMD optical solutions.
文献关键词：
中图分类号：
作者姓名：
DEWEN CHENG;JIAXI DUAN;HAILONG CHEN;HE WANG;DANYANG LI;QIWEI WANG;QICHAO HOU;TONG YANG;WEIHONG HOU;DONGHUA WANG;XIAOYU CHI;BIN JIANG;YONGTIAN WANG
作者机构：
Beijing Engineering Research Center of Mixed Reality and Advanced Display,School of Optics and Photonics,Beijing Institute of Technology,Beijing 100081,China;Ned Co.,Ltd.,Beijing 100081,China;Goertek Co.,Ltd.,Weifang 261031,China
文献出处：
引用格式：
[1]DEWEN CHENG;JIAXI DUAN;HAILONG CHEN;HE WANG;DANYANG LI;QIWEI WANG;QICHAO HOU;TONG YANG;WEIHONG HOU;DONGHUA WANG;XIAOYU CHI;BIN JIANG;YONGTIAN WANG-.Freeform OST-HMD system with large exit pupil diameter and vision correction capability)[J].光子学研究（英文）,2022(01):21-32
A类：
HMDs,microdisplay
B类：
Freeform,OST,system,exit,pupil,diameter,vision,correction,capability,Compactness,light,weight,distance,small,distortion,virtual,image,see,through,paths,are,pivotal,factors,achieve,better,wearable,experience,optical,head,mounted,displays,In,addition,efficiency,important,heat,dissipation,devices,This,paper,presents,new,that,includes,three,wedge,shaped,freeform,prisms,two,symmetric,lenses,Based,prototype,diagonal,field,view,FOV,number,size,eye,relief,demonstrated,maximum,value,final,respectively,overall,dimension,no,larger,than,width,height,thickness,module,including,holder,higher,those,other,solutions
AB值：
0.48887
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