红外与激光工程, 2019, 48 (6): 0626004, 网络出版: 2019-07-29   

基于棱镜反射光栅的低串扰自由立体投影显示方法

Low crosstalk autostereoscopic projection display method based on prismatic reflective grating
作者单位
1 中国科学院重庆绿色智能技术研究院, 重庆 400714
2 宁波摩米创新工场电子科技有限公司, 浙江 宁波 315199
摘要
为解决传统柱透镜自由立体投影显示中像差和视几何引起的串扰和视点数受限问题, 基于回归反射, 提出了一种棱镜反射光栅自由立体投影显示方法。通过分析其3D成像的原理, 对棱镜反射光栅自由立体投影显示进行仿真, 发现该方法在水平视宽相同的条件下, 视场照度是柱透镜光栅投影的10倍, 而其串扰比是柱透镜光栅投影的1/5, 且不存在次视区。制作了棱镜反射光栅屏, 并搭建系统进行实验, 验证了棱镜反射光栅自由立体投影显示方案的可行性。
Abstract
In order to solve the problem of crosstalk and limited number of viewpoints caused by aberrations and geometry in the traditional stereoscopic projection display based on cylindrical lens, a autostereoscopic projection display method based on prismatic reflective grating was proposed. The principle of 3D imaging was analyzed. The autostereoscopic projection display based on prismatic reflective grating was simulated. Compared with traditional autostereoscopic projection display based on cylindrical lens, under the condition of same horizontal video bandwidth, the illuminance of viewing field is ten times, and the crosstalk ratio is 1/5, and there is no secondary viewing zone. The prismatic reflection grating screen was made and the system was set up to carry out experiments. The feasibility of autostereoscopic projection display was verified.

谭艾英, 尹韶云, 夏厚胤, 江海波, 陈建军, 杨若夫. 基于棱镜反射光栅的低串扰自由立体投影显示方法[J]. 红外与激光工程, 2019, 48(6): 0626004. Tan Aiying, Yin Shaoyun, Xia Houyin, Jiang Haibo, Chen Jianjun, Yang Ruofu. Low crosstalk autostereoscopic projection display method based on prismatic reflective grating[J]. Infrared and Laser Engineering, 2019, 48(6): 0626004.

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