Optical Systems for Astronomy

<p><span style=color: rgba(23 43 77 1)>This collection of papers covers a number of topics related to the astronomical optics. In particular it describes proposed ground-based and space instruments novel optical design concepts telescopes alignment techniques cryogenic systems for astronomy adaptive optics and mirror polishing. In total it comprises 15 research articles and 1 review which were published as a special issue of </span><em style=color: rgba(23 43 77 1)>Photonics </em><span style=color: rgba(23 43 77 1)>Journal.</span></p><p><br></p><p><br></p>