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为了控制反射式旋转对称光学系统中的偏振效应,对该类系统中的偏振像差进行了分析。在偏振像差理论的基础上,通过偏振光线追迹的方法,导出反射式旋转对称光学系统的偏振像差的计算公式,提出了反射界面产生的偏振像差的影响因子,对影响其偏振像差的因素进行了分析。实例分析结果表明,对于具有宽光谱、大入射角、大视场等特点的反射式旋转对称光学系统,要想提高其光学系统的性能,必须控制光学系统的偏振像差。提出尽可能减小入射角的大小,并通过薄膜设计减小偏振分离来降低系统中的偏振效应,是控制反射式旋转对称光学系统中的偏振像差的有效措施。
In order to control the polarization effect in a reflective rotating symmetric optical system, the polarization aberrations in this type of system are analyzed. Based on the theory of polarization aberration, the calculation formula of the polarization aberration of the reflection type rotationally symmetric optical system is deduced by the method of polarization ray tracing, and the influencing factor of the polarization aberration caused by the reflection interface is proposed. The poor factors were analyzed. The results of example analysis show that for a reflective rotationally symmetric optical system with wide spectrum, large incident angle and large field of view, it is necessary to control the polarization aberration of the optical system in order to improve the performance of the optical system. It is an effective measure to control the polarization aberration in a reflection type rotationally-symmetric optical system by reducing the incident angle as much as possible and reducing the polarization separation by thin film design to reduce the polarization effect in the system.