反射式牛顿-施密特光学系统设计

Design of reflecting Newton-Schmidt optical system

透射式施密特校正板在使用上受到口径和波段的限制,所以需要展开对反射式系统的研究。从三级像差理论出发,并考虑到离焦量引起的焦距变化,推导反射式牛顿-施密特校正板方程式和各种消像差条件,并求解出反射式牛顿-施密特光学系统。材料选择方面反射材料比透镜材料更容易得到,更重要的是反射镜不产生色差。文中得出的公式经具体实例证实是正确的,可以作为光学系统设计的理论基础。

Refractive Schmidt corrector is restricted by it＇s calibre and band,so we need study reflective optical system. Based on the third-order aberration theory,and considering the change of the focal distance brought by defocus, we get the equation of Newton-Schmidt corrector and all kinds of conditions of eliminating aberration. Then we can solve the Reflecting Newton- Schmidt optical system. About the material, the reflective material is easy to obtain than the refractive material, and the most important aspect is that the reflective material can not bring chromatic aberration. The formula in this paper prove to be correct by the examples, and they can be used as optical system design of the theoretical basis.