HIGH-APERTURE MIRROR LENS OF HIGH-RESOLUTION SPACE TELESCOPE Russian patent published in 2024 - IPC G02B17/08 

FIELD: optical instrument making.

SUBSTANCE: invention relates to optical instrument making and can be used as a lens for a remote sensing space telescope. High-aperture mirror lens consists of a full-aperture meniscus, the main and secondary mirrors and a lens compensator installed in series along the beam path. Meniscus is in form of an axially symmetric negative lens meniscus whose convex side faces the image plane. Main mirror is made in the form of an axisymmetric spherical mirror concave along the path of the beam with a hole in the central zone, the secondary mirror is in the form of an axisymmetric spherical mirror convex along the path of the beam. Main mirror faces the object space with its concavity, and the secondary mirror faces the image plane with its convexity. Meniscus is located between the main and secondary mirrors. Compensator is placed beyond the top of the main mirror and consists of three single lens menisci made in the form of axially symmetric menisci with negative optical power, and a single lens in the form of an axisymmetric biconvex lens with positive optical power.

EFFECT: providing high resolution with improved technological characteristics to ensure shooting of the Earth's surface in the spectral range of 500-900 nm over the entire field of view.

1 cl, 3 dwg, 1 tbl