Features of application of elastic membrane primaries in observing telescopes with nonlinear optical correction of images

摘要

Abstract: Some last ten years the problem of compensation fordynamic distortions of primary mirrors in low-weightlarge-size imaging telescopes by methods of dynamicholography is actively being investigated. Today theperformance of such systems has been experimentallyproved. Thus, the idea to use in such a telescopicsystem a low-weight-film primary mirror, which can, inprinciple, be of large diameter in an unfolded mode, isvery attractive one. In this paper the problems areconsidered related to integration of a thin- filmprimary mirror in a telescope with a non-linearcorrector for an object image. Namely, there will bediscussed the architecture of the telescope with thethin- film primary, optical quality of the mirror,requirements on the non-linear corrector, thetelescope's field of view, and quality of the image ofan object.!5