新型四通道计算全息图

A new style for four-channel computer-generated holograms

提出了一种新的制作四通道计算全息的方法,它在双通道计算全息的基础上通过在一个抽样单元中放置两个宽度和高度均可变化的矩形,实现在u方向和v方向各记录两个物体的信息,从而可以一次性记录四个物体。该方法已经在实验中得到了印证,文中给出了相应的原理和实验结果。

A new method of making four - channel computer - generated holograms is proposed in this paper, on the basis of two - channel CGH, we put two rectangle which breadth and altitude are all alterable in a sample cell, allows respectively record the information of two images in u axis and v axis, accordingly, record four independent images are come true. The results of experiment shows the feasibility of this method, the principle and the experiment results are given in this paper.