用液晶空间光调制器实现动感合成全息

The implementation of sensorimotor holography based on liquid crystal spatial light modulator

提出了一种基于液晶空间光调制器实现合成全息动感的新方法.首先根据人眼双眼视差立体视觉原理获取三维物体的二维体视对阵列,由计算全息方法得到每一视角的一对体视图的合成全息图并顺序存储,再现时由计算机控制将合成全息图阵列以一定频率输出到液晶空间光调制器,通过光路分离左右视图再现像,从而使人眼观察到动感的立体图像.该方法由计算机控制全息图分时输出再现代替空间面积分割方法,相比传统的合成全息来说,实现的方法灵活,易于操作.

It was provided a new method for realizing sensorimotor hologram based on the light modulator. Firstly an array of 2D stereo pairs were taken according to the principle of liquid crystal spatial al system of human and the synthetic holograms of the stereo-pair images taken from different view angles were computed and stored sequentially. The output of the series of holograms to the liquid crystal spatial light modulator were controlled by computer at a certain frequency for optoelectronic reconstruction and the reconstructed images were separated and led to the left and right eye so that the sensorimotor reconstructed stereoscopic image could be observed. In this approach, the operation was performed on the time-sharing output and reconstruction of the holograms to replace spatial area partition, which was showed to be more flexible and easier to operate than in the conventional sensorimotor holography.