Design and Optimization of Three Cylindrical Reflectors Optical System

无遮拦三反射镜变焦系统设计

“…However, the obscurations in traditional co-axial reflective systems have made the design of zoom systems with large field of view difficult, and in some cases, impossible to handle. In order to eliminate obscurations, decenters and tilts of the mirrors were incorporated into asymmetric system designs [2] . However, due to the lack of rotational symmetry, the classical theory of Seidel aberrations has become unsuitable for the design of such systems.…”