The conclusion is: a practical beam expandingtelescope has maximum beam expanding ratio when its maladjustment is zero.
其结论为一个实用的扩束望远镜在失调量为零时，具有最大的扩束比。
2
Based on matrix optics, the relationship between maladjustment and expanding ratio of the laser beam expandingtelescope has been analyzed in this paper.
本文利用矩阵光学的方法，分析了扩束望远镜的失调量与扩束比之间的关系。
3
In this paper, the propagation of Gaussian beams in a telescope system is analysed by using beam transformation formulas. The maximum beam expanding ratio is discussed.