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Proceedings Paper

Multiple-aperture telescope array with a high fill factor
Author(s): Alan L. Duncan; Robert D. Sigler; David M. Stubbs
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Paper Abstract

Traditionally a telescope system consists of a large collecting element, usually called the primary, located at the entrance pupil and some smaller elements to relay or convey the light to an image plane. As telescope systems become larger and larger, in order to achieve higher resolution and collect more light, a point is reached where the size of the required elements exceeds the current state of the art in fabrication and support. For telescopes larger than this, the entrance pupil must either be divided into manageable segments, or the entrance pupil is divided into an array of separate telescopes. A multiple telescope array consists of afocal collector telescopes distributed in the entrance pupil, relay optics to bring the light to the center and control tilt and piston errors, and a focal combiner telescope to form the image. Sparse telescope arrays have been designed for various applications. This paper addresses the issues and design constraints leading to a multiple telescope array with a high fill factor.

Paper Details

Date Published: 18 December 2002
PDF: 12 pages
Proc. SPIE 4849, Highly Innovative Space Telescope Concepts, (18 December 2002); doi: 10.1117/12.460055
Show Author Affiliations
Alan L. Duncan, Lockheed Martin Advanced Technology Ctr. (United States)
Robert D. Sigler, Lockheed Martin Advanced Technology Ctr. (United States)
David M. Stubbs, Lockheed Martin Advanced Technology Ctr. (United States)

Published in SPIE Proceedings Vol. 4849:
Highly Innovative Space Telescope Concepts
Howard A. MacEwen, Editor(s)

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