SCHIEFSPIEGLER TELESCOPE WITH THREE REFLECTING SURFACES

摘要

The invention is directed to a Schiefspiegler telescope with three reflecting surfaces, preferably for observing the earth from space, particularly for imaging radiometers. It is the object of the invention to find a novel possibility for realizing a reflector telescope without vignetting which permits a simple construction and a simple adjustment of the reflecting surfaces relative to one another. According to the invention, in a Schiefspiegler telescope with three reflecting surfaces whose mirror axes are arranged within a plane, this object is met in that the primary reflecting surface and tertiary reflecting surface are convex surfaces of identical shape which are arranged symmetrically with respect to an axis of symmetry, and in that the secondary reflecting surface is arranged symmetric to the primary reflecting surface and tertiary reflecting surface and so as to be rotationally symmetric around the axis of symmetry so that all three reflecting surfaces have an axially symmetric mirror arrangement with respect to design in which the optical imaging is transmitted to a receiver in the manner of an off-axis telescopes.