Current concept for the 4m European Solar Telescope (EST) optical design

被引：6
|
作者：
Sanchez-Capuchino, J. [1 ]
Collados, M. [1 ]
Soltau, D. [2 ]
Lopez, R. [1 ]
Rasilla, J. L. [1 ]
Gelly, B. [3 ]
机构：
[1] Inst Astrofis Canarias, San Cristobal la Laguna 38205, Spain
[2] Kiepenheuer Inst Sonnenphys, D-79104 Freiburg, Germany
[3] Themis SL, San Cristobal la Laguna 38205, Spain
来源：
INTERNATIONAL OPTICAL DESIGN CONFERENCE 2010 | 2010年 / 7652卷
关键词：
Solar Astronomical Instrumentation; Optical Design; Multi-Conjugate Adaptive Optics; Telecopes; INSTRUMENTAL POLARIZATION;
D O I：
10.1117/12.871604
中图分类号：
TM [电工技术]; TN [电子技术、通信技术];
学科分类号：
0808 ; 0809 ;
摘要：
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 Coude 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 mu m to 2.3 mu m. 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.
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页数：9
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