Light-efficient augmented reality display with steerable eyebox
Light-efficient augmented reality display with steerable eyebox
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DOI：
10.1364/oe.27.012572
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发表时间：
2019-04-29
期刊：
影响因子：
3.8
通讯作者：
Urey, Hakan
中科院分区：
文献类型：
--
作者：
Hedili, M. Kivanc;Soner, Burak;Urey, Hakan
我们提出了一种新颖的头盔显示装置，它使用针孔成像原理与低延迟动态光瞳跟随器相结合。透射式LCD由单个LED背光照明。LED照明聚焦在观察者的瞳孔上，形成一个比人类平均瞳孔更小的眼框，从而产生针孔显示效果，其中所有距离的物体都显示在焦点上。由于几乎所有的光都指向观看者的瞳孔，每个基色的一个低功率LED的总输出为0.42流明，足以创建一个亮度为360cd/m(2)的明亮的全色显示器。为了跟随观察者的瞳孔，眼箱需要是可操纵的。我们使用LED阵列和实时瞳孔跟踪器实现了一个动态眼箱。整个系统在11毫秒的运动到光子延迟下工作，满足了实时光瞳跟随器系统的要求。实验结果有效地证明了我们的头盔针孔显示器具有37度的视场和非常高的光效，配备了一个具有低运动到光子潜伏期的光瞳跟随器。(C)OSA开放获取出版协议条款下的2019年美国光学学会
We present a novel head-mounted display setup that uses the pinhole imaging principle coupled with a low-latency dynamic pupil follower. A transmissive LCD is illuminated by a single LED backlight. LED illumination is focused onto the viewer's pupil to form an eyebox smaller than the average human pupil, thereby creating a pinhole display effect where objects at all distances appear in focus. Since nearly all the light is directed to the viewer's pupil, a single low-power LED for each primary color with 0.42 lumens total output is sufficient to create a bright and full-color display of 360 cd/m(2) luminance. In order to follow the viewer's pupil, the eyebox needs to be steerable. We achieved a dynamic eyebox using an array of LEDs that is coupled with a real-time pupil tracker. The entire system is operated at 11 msec motion-to-photon latency, which meets the demanding requirements of the real-time pupil follower system. Experimental results effectively demonstrated our head-mounted pinhole display with 37 degrees FOV and very high light efficiency, equipped with a pupil follower with low motion-to-photon latency. (C) 2019 Optical Society of America under the terms of the OSA Open Access Publishing Agreement