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介绍了一种简单的用于在外场检测空间光学系统的方法,其主要原理是通过内置点光源和外部的平面镜使系统自身产生平行光从而代替大口径平行光管。通过相位差异(PD)算法可以从点光源的图像中反演得出系统的波相差。讨论了该方法的限制。给出了仿真结果,证明了该方法的实用性。
A simple method for detecting a spatial optical system in the outfield is introduced. The main principle is to replace the large-diameter collimator by generating parallel light through the built-in point light source and an external plane mirror. The phase difference (PD) algorithm can be used to invert the phase difference of the system from the image of the point source. The limitations of this method are discussed. The simulation results are given to prove the practicability of this method.