基于分光计的空间滤波系统在大学物理实验中的应用

THE SPATIAL FILTERING SYSTEM BASED ON SPECTROPHOTOMETERS

本文提出一种基于分光计的空间滤波实验系统。采用一台分光计的平行光管作为扩束系统，另一台分光计的望远镜作为像接收装置，结合物、透镜及滤波器等元件，即可实现空间滤波实验。本系统结构简单可靠、光路调节灵活、图像清晰利于观察、为学生拓展实验视野提供了一种有效途径。

In this paper,we report on a spatial filtering system based on spectrophotometers. The collimator of one spectrophotometer is used as beam expanding system and the telescope of another spectrophotometer is used as the receiver of light. Combined with object,lens,and spatial filter,the spatial filtering experiment can be realized. The construction of the system is simple and reliable. It is flexible to adjust the light paths. The images are clear to observe. It provides an effective way to realize spatial filtering experiment.