copying hologram

Experiment of copying hologram by contact method;

接触法复制全息图的实验

The dark interfere fringes appearing on a copying hologram with white light are discussed.

两全息片之间的微小间隙使得复制全息图将在全息片上再现出两个虚像波前 ,这两个虚像波前相互之间有一定平移 ,将相干叠加出现干涉条纹。

A method of constructing composite hologram for reducing the background noise is proposed.

对于编码函数非负给物体的再现像带来的背景噪音 ,提出采用构造复合全息图的方法来消除。