阿贝成像原理中“分频、合频”的实验演示

The Experimental Demonstration of "Frequency Division and Frequency Synthesis" in Abbe Imaging Principle

在阿贝成像原理的教学过程中,通过实验演示物体成像的分频和合频过程,使学生更容易理解阿贝成像的本质就是两次傅里叶变换,同时对空间频谱、分频、合频等概念更容易掌握,也为空间滤波的学习打下基础。

In the teaching process of Abbe imaging principle,an experiment is made to demonstrate the frequency division and frequency synthesis in the imaging of the object.After the demonstration,the students can understand easily that the essence of the imaging is Fourier transform twice.Meanwhile,they can easily grasp the conception of spatial frequency,frequency division and frequency synthesis,which lays a good foundation for the study of spatial filting.