Abstract Large space telescopes cannot be made diffraction-limited at least for short wavelengths. Methods for reconstructing diffraction-limited images are reviewed including active optics, Michelson stellar interferometry, non-redundant aperture arrays, deconvolution and shearing interferometry. Expressions are given for the signal-to-noise ratio in each case and the result of laboratory simulations are presented. It is concluded that diffraction-limited images could be obtained in the visible up to magnitude 21 with large deployable reflectors planned to be used in the far I.R. or millimetric range.
How to achieve diffraction limited resolution with large space telescopes
Advances in Space Research ; 2 , 4 ; 3-9
1983-01-01
7 pages
Article (Journal)
Electronic Resource
English
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