Department of Photonics & Institute of Electro-Optical Engineering, Display Institute, National Chiao Tung University, Hsinchu 30010, Taiwan.
Opt Lett. 2012 Oct 1;37(19):4125-7. doi: 10.1364/OL.37.004125.
In this Letter, we present a three-dimensional (3D) imaging system with axially distributed sensing (ADS) using an electronically controlled liquid crystal (LC) lens. The proposed system performed an optical image acquisition by varying the focal lengths of the LC lens without mechanical movements of an image sensor. Multiple images with slightly different perspectives were experimentally recorded, and the 3D images were reconstructed according to the ray backprojection algorithm. To the best of our knowledge, this is the first report on 3D ADS using a LC lens. The proposed system is attractive for compact 3D sensing camera systems.
在这封信件中，我们提出了一种使用电控液晶（LC）透镜的轴向分布传感（ADS）三维（3D）成像系统。该系统通过改变 LC 透镜的焦距来实现光学图像采集，而无需图像传感器的机械运动。我们实验记录了多个具有略微不同视角的图像，并根据光线反向投影算法重建了 3D 图像。据我们所知，这是首次使用 LC 透镜进行 3D ADS 的报道。所提出的系统对于紧凑型 3D 感应相机系统具有吸引力。
