30 July 2002 Integrated approach to the design of a 4-m survey telescope (VISTA) and its instrumentation
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Proceedings Volume 4757, Integrated Modeling of Telescopes; (2002); doi: 10.1117/12.489820
Event: Workshop on Integrated Modeling of Telescopes, 2002, Lund, Sweden
Abstract
The design of VISTA (Visible and Infrared Survey Telescope for Astronomy) requires close interaction between the science requirements, the optical and active mechanical design of the telescope and its instrumentation with the wavefront sensing. The optical design is based on an integrated approach of the telescope with tow separate cameras, one working in the IR waveband and the other working in the Visible waveband. The large field of view (2 degrees in the visible and 1.65 degrees in the IR), the seeing-limited resolution required (FWHM of 0.4 arcsec for the visible and 0.5 arcsec for the IR), the technological advance in active telescopes and large IR arrays and the f/1 quasi Ritchey-Chretien telescope design, makes this telescope a very powerful tool in performing high resolution and large astronomical surveys. A system analysis, modeling the various sources of errors such as optical aberrations, surface errors, control errors, environmental effects and detector effects is presented in this paper.
© (2002) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Eli Ettedgui-Atad, Will Sutherland, Sue Worswick, Stefano Stanghellini, Brett A. Patterson, Richard Bennett, David M. Henry, Brian Stobie, Simon C. Craig, "Integrated approach to the design of a 4-m survey telescope (VISTA) and its instrumentation", Proc. SPIE 4757, Integrated Modeling of Telescopes, (30 July 2002); doi: 10.1117/12.489820; https://doi.org/10.1117/12.489820
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KEYWORDS
Telescopes

Infrared telescopes

Image quality

Mirrors

Mathematical modeling

Infrared cameras

Error analysis

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