Deng Huan, Chen Cong, He Min-Yang, Li Jiao-Jiao, Zhang Han-Le, Wang Qiong-Hua
J Opt Soc Am A Opt Image Sci Vis. 2019 Apr 1;36(4):588-593. doi: 10.1364/JOSAA.36.000588.
An augmented reality (AR) three-dimensional (3D) display based on one-dimensional integral imaging (1DII), by using a lenticular lens array holographic optical element (LLA-HOE), is proposed. The 3D image of the 1DII has higher vertical resolution compared with the image of conventional integral imaging whose resolution is sharply reduced for providing quasi-continuous viewpoints in both the horizontal and vertical directions. The proposed 3D display consists of a projector and an LLA-HOE and is compact. As an image combiner, the LLA-HOE can diffract Bragg-matched light rays that have the same wavelength and incident angle as the original reference wave; it can also function as a lenticular lens array to reconstruct a 3D image but transmit other light rays emitted from the surroundings. In the experiment, an LLA-HOE of 80 mm×80 mm size is recorded, and a combination of a high-resolution 3D virtual image and a real 3D object is presented by the proposed AR 3D display.
本文提出了一种基于一维积分成像（1DII）的增强现实（AR）三维（3D）显示器，该显示器使用了柱面透镜阵列全息光学元件（LLA-HOE）。与传统积分成像的图像相比，1DII的3D图像具有更高的垂直分辨率，传统积分成像为了在水平和垂直方向上提供准连续的视点，其分辨率会急剧降低。所提出的3D显示器由一台投影仪和一个LLA-HOE组成，结构紧凑。作为图像合成器，LLA-HOE可以衍射与原始参考波具有相同波长和入射角的布拉格匹配光线；它还可以用作柱面透镜阵列来重建3D图像，但会透射周围环境发出的其他光线。在实验中，记录了尺寸为80 mm×80 mm的LLA-HOE，并通过所提出的AR 3D显示器呈现了高分辨率3D虚拟图像和真实3D物体的组合。
