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Proceedings Paper

Current concept for the 4m European Solar Telescope (EST) optical design
Author(s): J. Sánchez Capuchino; M. Collados; D. Soltau; R. López; J. L. Rasilla; B. Gelly
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Paper Abstract

The European Solar Telescope (EST) is a 4-m class solar telescope to be located in the Canary Islands which is currently in its conceptual design study. EST is a pan-european project (with 29 partners, plus 7 collaborating institutions, from 14 countries) promoted by the European Association for Solar Telescopes (EAST). In the current concept, the main telescope and its transfer optics assemblies 14 mirrors to provide a Science Coudé Focus with an F/50 telecentric beam. It is diffraction-limited in a FOV of 1 arcmin with an unvignetted FOV of 2'x2'. The whole system is being optimized in throughput for several instruments observing simultaneously in a spectral range from 0.39 μm to 2.3 μm. Its innovative concept integrates an optical transfer stage assembling multiconjugated adaptive optics with optical field de-rotation and with a perfect balance of the whole system in terms of polarization being also time and wavelength invariant.

Paper Details

Date Published: 8 September 2010
PDF: 9 pages
Proc. SPIE 7652, International Optical Design Conference 2010, 76520S (8 September 2010); doi: 10.1117/12.871604
Show Author Affiliations
J. Sánchez Capuchino, Instituto de Astrofísica de Canarias (Spain)
M. Collados, Instituto de Astrofísica de Canarias (Spain)
D. Soltau, Kiepenheuer-Institut für Sonnenphysik (Germany)
R. López, Instituto de Astrofísica de Canarias (Spain)
J. L. Rasilla, Instituto de Astrofísica de Canarias (Spain)
B. Gelly, Themis SL (France)

Published in SPIE Proceedings Vol. 7652:
International Optical Design Conference 2010
Julie Bentley; Anurag Gupta; Richard N. Youngworth, Editor(s)

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