首页>
外国专利>
A re-imaging optical system comprising a three-mirror anastigmat and a corrector mirror
A re-imaging optical system comprising a three-mirror anastigmat and a corrector mirror
展开▼
机译:包括三反射镜和校正镜的再成像光学系统
展开▼
页面导航
摘要
著录项
相似文献
摘要
A corrector mirror folds the optical path between the objective and relay portions of a three-mirror anastigmat. The corrector mirror is a non-powered mirror having a nominally flat but higher order aspheric surface. By placing the corrector mirror between the objective portion and an intermediate image formed by the objective portion, the field offset of the anastigmat can be significantly increased. A large field offset makes the off-axis anastigmat ideal for use with an on-axis dewar for infrared imaging applications.
展开▼