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Optical Engineering

Development of a carbon fiber composite active mirror: design and testing
Author(s): Sarah Kendrew; Peter Doel; David Brooks; Chris Dorn; Chris Yates; Richard Martin Dwan; Ian M. Richardson; Glynn Evans
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Paper Abstract

Carbon fiber composite technology for lightweight mirrors is gaining increasing interest in the space- and ground-based astronomical communities for its low weight, ease of manufacturing, excellent thermal qualities, and robustness. We present here first results of a project to design and produce a 27-cm diameter deformable carbon fiber composite mirror. The aim was to produce high surface form accuracy as well as low surface roughness. As part of this program, a passive mirror was developed to investigate stability and coating issues. Results from the manufacturing and polishing process are reported here. We also present results of a mechanical and thermal finite element analysis, as well as early experimental findings on the deformable mirror. Possible applications and future work are discussed.

Paper Details

Date Published: 1 March 2006
PDF: 7 pages
Opt. Eng. 45(3) 033401 doi: 10.1117/1.2179771
Published in: Optical Engineering Volume 45, Issue 3
Show Author Affiliations
Sarah Kendrew, Univ. College London (United Kingdom)
Peter Doel, Univ. College London (United Kingdom)
David Brooks, Univ. College London (United Kingdom)
Chris Dorn, QinetiQ Ltd. (United Kingdom)
Chris Yates, QinetiQ (United Kingdom)
Richard Martin Dwan, QinetiQ Ltd. (United Kingdom)
Ian M. Richardson, Cobham Composites Ltd. (United Kingdom)
Glynn Evans, Cobham Composites Ltd. (United Kingdom)

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