针对影响光学系统成像质量的装调误差,分析了偏心误差对高分辨率光学系统成像的影响。基于一款自主设计的接近衍射极限的高分辨率星载相机光学系统,利用Zemax光学软件分析光学装调过程中偏心误差对光学传递函数的影响,得出光学系统中各个分离元件对成像质量影响的权重,为光学系统的装调方案设计和实施提供了依据,实现了该光学系统2 500万像素高分辨率成像。这种误差分析方法实现了对光学系统装调过程的有效控制,提高了光学装调的效率。

The alignment errors affect the imaging quality of optical system. We analyze the influence of eccentric error in the high-resolution optical imaging system. Based on a self-designed high-resolution spaceborne optical system which is closed to the diffraction limitation, we use the software Zeamx to analyze how the decenter and tilt during its alignment process affect the MTF.At the same time, we know that the weight of separate element affects the optical system. It can provide the basis for the design and implementation of alignment, and achieve the high-resolution imaging of 25 million pixels. This error analysis method can control the alignment effectively and improve the efficiency of system alignment.