Wide viewing angle three-dimensional display using curved HOE lens array
Wide viewing angle three-dimensional display using curved HOE lens array
复制标题
使用弯曲HOE透镜阵列的宽视角三维显示
DOI：
10.1117/12.2002321
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发表时间：
2013
期刊：
影响因子：
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通讯作者：
Yoshiaki Oshima
中科院分区：
文献类型：
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作者：
S. Arisawa;I. Iguchi;K. Mochiduki;K. Yun;T. Hatano;T. Uchiyama;K. Endo;T. Endo;Yoshiaki Oshima
我们提出了一种全方位三维（3D）显示系统。这是一种用于在少数人之间围绕 3D 图像进行交流的工具。该3D显示器由多个基本3D显示单元组成。每个基本 3D 显示单元均由投影仪和弯曲 HOE 透镜阵列片组成。投影仪位于曲面HOE透镜阵列的曲率中心，以上升垂直角45度将光线投射到曲面HOE透镜阵列上。投射的光线被弯曲的 HOE 透镜阵列反射并在曲率中心重建 3D 图像。在此方法中，即使每个HOE透镜的视角没有增加，也可以增加弯曲HOE透镜阵列的3D图像的视角。为了验证所提方法的有效性，我们构建了原型基本3D单元。 3D图像的视角为44度。因此，与传统平面 HOE 透镜阵列的 17 度视角相比，所提出的方法增加了视角。本文描述了所提出的 3D 显示系统的原理，并描述了实验结果。
We propose an omnidirectional three-dimensional (3D) display system. This is a tool for communication around a 3D image between a small number of people. This 3D display consists of multiple basic 3D display units. Each basic 3D display unit consists of a projector and a curved HOE lens array sheets. The projector is located on the center of the curvature of the curved HOE lens array, and it projects light rays on the curved HOE lens array with ascending vertical angle 45-degree. Projected light rays are reflected and reconstruct the 3D image over the center of the curvature by the curved HOE lens array. In this method, even though the viewing angle of each HOE lens does not increase, the viewing angle of the 3D image by the curved HOE lens array can be increased. To verify the effectiveness of the proposed method, we constructed the prototype basic 3D unit. The viewing angle of a 3D image was 44-degree. Therefore, the viewing angle was increased by the proposed method compared to 17-degree by the conventional flat HOE lens array. This paper describes the principle of proposed 3D display system, and also describes the experimental results.