A case should be a - void when the zero positions of incident wavefront are concurrent with actuator that causes failure of compensation.
存在一类特殊情况，当入射波前的零点恰好通过各变形镜所在位置，补偿拟合基本失效，应注意避免。
It is assumed that the intensity of the incident wavefront is uniform in these fields, but this assumption is not in accord with the principle of the curvature sensing technology.
在这些领域使用时都假设入射波前光强均匀，但这种假设与曲率传感技术的基本原理不一致。
The analysis that the size of the focal shift is related to the factors such as Fresnel number, separating degree of lens-diaphragm and curvature radius of incident wave wavefront, etc.
分析表明，焦移的大小与菲涅尔数、透镜-光阑的分离程度以及入射波波面曲率半径等因素有关，并得出了消除焦移的条件。
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