Active optics system of the VLT Survey Telescope

作者：Schipani Pietro^*; Noethe Lothar; Magrin Demetrio; Kuijken Konrad; Arcidiacono Carmelo; Argomedo Javier; Capaccioli Massimo; Dall'Ora Massimo; D'Orsi Sergio; Farinato Jacopo; Fierro Davide; Holzloehner Ronald; Marty Laurent; Molfese Cesare; Perrotta Francesco; Ragazzoni Roberto; Savarese Salvatore; Rakich Andrew; Umbriaco Gabriele

来源：Applied Optics, 2016, 55(7): 1573-1583.

DOI：10.1364/AO.55.001573

This paper describes the active optics system of the VLT Survey Telescope, the 2.6-m survey telescope designed for visible wavelengths of the European Southern Observatory at Cerro Paranal, in the Atacama desert. The telescope is characterized by a wide field of view (1.42 deg diameter), leading to tighter active optics than in conventional telescopes, in particular for the alignment requirements. We discuss the effects of typical error sources on the image quality and present the specific solutions adopted for wavefront sensing and correction of the aberrations, which are based on the shaping of a monolithic primary mirror and the positioning of the secondary in five degrees of freedom.

• 出版日期2016-3-1