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21 March 1997 Large field-of-view telescope for deep surveys
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Proceedings Volume 2871, Optical Telescopes of Today and Tomorrow; (1997)
Event: Optical Telescopes of Today and Tomorrow, 1996, Landskrona/Hven, Sweden
Conventional astronomical telescope makes use of a Ritchey- Chretien 2-mirror telescope, with a limited FOV except in the case of use of complex field corrector inducing spectral range limitations. For the future, large imaging telescope could offer main scientific advantages, like: (1) obtain a 3D description of the content of a large volume of the universe; (2) galaxy content and morphology; (3) galaxy red shift; (4) dark matter distribution; (5) absolute length scale. The present paper proposes for this large imaging telescope mission, the use of a Korsh, 3-mirror telescope thats characteristics are: (1) size approximately equals 2.5 meter; (2) field is greater than or equal to 1.5 degrees (but with no light on the optical axis); (3) image quality is less than or equal to 0.3 feet; (4) multispectral capabilities: from 0.35 micrometer up to 2.5 micrometer and more if needed; (5) real exit pupil with flat mirror; (6) good focal plane accessibility allowing multiple instrumentations: turret rotation of the previous flat mirror can be used, with several fixed instruments.
© (1997) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Jacques Barbe, Guy Cerutti-Maori, and Jean-Pierre Rozelot "Large field-of-view telescope for deep surveys", Proc. SPIE 2871, Optical Telescopes of Today and Tomorrow, (21 March 1997);


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