当前位置: X-MOL 学术Optik › 论文详情
Our official English website, www.x-mol.net, welcomes your feedback! (Note: you will need to create a separate account there.)
Correction of the error induced by obscurations of Ritchey-Chretien collimators for high-resolution space camera MTF measured with the ISO 12233 slanted-edge method
Optik Pub Date : 2021-03-02 , DOI: 10.1016/j.ijleo.2021.166653
Shangkuo Liu , Kai Liu , Kewei E , Tao Wang , Zhaohui Li , Baoli Yao

We propose a method to correct the error induced by the obscurations of Ritchey-Chretien (R-C) collimators, when measuring modulation transfer function (MTF) of high-resolution space cameras by the ISO 12,233 slanted-edge method. The obscurations of an R-C collimator include the secondary mirror (SM) and its supporting bars. Mathematical models are derived to simulate possible obscurations by virtual surfaces of Zemax, with which we get the correction function (CF) of the obscuration induced error (OIE). Simulated results manifest that the proposed method can correct the OIE. Furthermore, an experiment setup is established with the same system parameters of the previous Zemax modeled system. The experiment results verify the effectiveness of the proposed method again. Our method can guarantee the precision of the ISO 12,233 slanted-edge method when an R-C collimator is chosen.



中文翻译:

校正使用ISO 12233斜边法测量的高分辨率空间相机MTF的Ritchey-Chretien准直器遮盖所引起的误差

当通过ISO 12,233斜边方法测量高分辨率空间相机的调制传递函数(MTF)时,我们提出了一种校正由Ritchey-Chretien(RC)准直器的遮蔽引起的误差的方法。RC准直仪的遮盖物包括辅助镜(SM)及其支撑杆。推导了数学模型,以模拟Zemax虚拟表面可能产生的遮挡,从而获得遮挡引起的误差(OIE)的校正函数(CF)。仿真结果表明,该方法可以校正OIE。此外,使用与以前的Zemax建模系统相同的系统参数建立了实验设置。实验结果再次验证了该方法的有效性。我们的方法可以保证ISO 12的精度

更新日期:2021-03-07
down
wechat
bug