介绍了空间针孔滤波器的调节方法，并给出了部分实验结果。
The technique of using spatial pinhole filter for laser beam is introduced, and the experiment results are given.
另外，从实验结果还可以看出，滤波器的性能受到探测针孔尺寸的影响。
In addition, it can be concluded that filter performance are influenced by pinhole size.
另外，从实验结果还可以看出，滤波器的性能受到探测针孔尺寸的影响。
In addition, it can be concluded that filter performance are influenced by pinhole size.
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