Characteristics of the defocusing error signals are expressed in the terms of an off-axial detection system by geometric optics. The results are compared with experiment.

本文用几何光学描述了离轴探测调焦误差信号与系统参数的关系，并与实验结果进行了比较。

youdao

The paper has focused on how to apply the multimedia CAI into the experiment teaching in the college optics, and to reach the purposes of improve teaching efficiency and experiment aims.

在大学物理光学实验教学中如何利用多媒体技术进行辅助教学，从而达到提高教学效果和实验效果的目的。

youdao

The analysis based on theory of Fourier optics is in accordance with the results of experiment.

建立在付立叶光学理论基础上的分析与实验结果是一致的。

youdao