Lightweight spatial-multiplexed dual focal-plane head-mounted display using two freeform prisms  

作　　者：程德文 王庆丰 王涌天 金国藩 

机构地区：[1]School of Optoelectronics, Beijing Institute of Technology [2]State Key Laboratory of Precision Measurement Technology and Instruments, Tsinghua University

出　　处：《Chinese Optics Letters》2013年第3期24-27,共4页中国光学快报（英文版）

基　　金：supported by the National Basic Research Program of China(No.2011CB706701);the National Natural Science Foundation of China(Nos.61178038and61205024)

摘　　要：Accommodation and convergence play critical roles in the natural viewing of three-dimensional （3D） scenes, and these must be accurately matched to avoid visual fatigue. However, conventional stereoscopic head- mounted displays lack the ability to adjust accommodation cues. This is because they only have a single, fixed image plane, but the 3D virtual objects generated by a pair of stereoscopic images are displayed at different depths, either in front or behind the focal plane. Therefore, in order to view objects clearly, the eyes are forced to converge on those objects while maintaining accommodation fixed on the image plane. By employing freeform optical surfaces, we design a lightweight and wearable spatial-multiplexed dual focal-plane head-mounted display. This display can adjust the accommodation cue in accordance with the convergence cue as well as generate the retinal blur cue. The system has great potential applications in both scientific research and commercial market.Accommodation and convergence play critical roles in the natural viewing of three-dimensional （3D） scenes, and these must be accurately matched to avoid visual fatigue. However, conventional stereoscopic head- mounted displays lack the ability to adjust accommodation cues. This is because they only have a single, fixed image plane, but the 3D virtual objects generated by a pair of stereoscopic images are displayed at different depths, either in front or behind the focal plane. Therefore, in order to view objects clearly, the eyes are forced to converge on those objects while maintaining accommodation fixed on the image plane. By employing freeform optical surfaces, we design a lightweight and wearable spatial-multiplexed dual focal-plane head-mounted display. This display can adjust the accommodation cue in accordance with the convergence cue as well as generate the retinal blur cue. The system has great potential applications in both scientific research and commercial market.

关 键 词：Helmet mounted displays MULTIPLEXING Three dimensional computer graphics 

分 类 号：TN873[电子电信—信息与通信工程]