adj.无收差的
Design of four-mirror reflective anastigmat optic system[J]. 引用该论文 丁学专
Anastigmatic lens: Photographic lens corrected for astigmatism as well as other distortions. 消像差透镜:消除纵横像差和其他畸变的摄影用透镜。
Results There were 28 cases with anastigmatic recurrence, the signs on CT were mass a rounding anastigmatic. 查阅病例，了解切除范围，探讨术后复发的原因。结果吻合口复发28例，在CT片上表现为吻合口区不规则肿块影；
Three-mirror anastigmat can not meet the requirement of reducing weight and compacting size in some circumstances. 常见的离轴三反系统已不能满足系统小型化、轻量化的要求。
A unobstructed four-mirror anastigmat system was proposed, which was modified based on three-mirror anastigmat and had compacter structure. 介绍了一种无中心遮拦的离轴四反射镜系统，由离轴三反系统改进而成，结构更加紧凑。
