离轴反射光学系统像差特性研究

发布时间：2018-04-29 14:48

本文选题：矢量波像差 + 离轴反射光学系统　；参考：《红外与激光工程》2016年06期

【摘要】：以轴对称光学系统的初级矢量波像差理论为基础,通过引入孔径缩放因子和孔径偏移矢量,获得了离轴反射光学系统初级像差特性。通过分析可知:离轴反射光学系统的初级像差依然由球差、彗差、像散组成。由于孔径缩放因子存在,离轴反射光学系统的波像差系数均有不同比例的减小,且轴对称光学系统的高级孔径像差会在对应离轴光学系统中引入较低阶孔径像差,例如轴对称光学系统未校正球差,对应的离轴光学系统除过球差外还将引入彗差、像散等。相比于轴对称光学系统的像差,由于孔径偏移矢量的引入,离轴反射光学系统的像差不再关于中心视场旋转对称,有可能在轴外视场产生像差零点。
[Abstract]:Based on the primary vector aberration theory of axisymmetric optical system, the primary aberration characteristics of off-axis reflective optical system are obtained by introducing aperture scaling factor and aperture offset vector. The primary aberration of off-axis reflection optical system is still composed of spherical aberration, coma and astigmatism. Because of the existence of aperture scaling factor, the wave aberration coefficient of off-axis reflective optical system decreases in different proportion, and the higher aperture aberration of axisymmetric optical system will introduce lower order aperture aberration into the corresponding off-axis optical system. For example the axisymmetric optical system does not adjust the spherical aberration the corresponding off-axis optical system will introduce coma astigmatism in addition to the spherical aberration. Compared with the aberration of axisymmetric optical system, because of the introduction of aperture offset vector, the aberration of off-axis reflection optical system is no longer about the rotating symmetry of the central field of view, so it is possible to produce aberration zeros in the off-axis field of view.
【作者单位】：中国科学院西安光学精密机械研究所空间光学研究室;
【基金】：“西部之光”基金
【分类号】：TH74

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