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Proceedings Paper

Optical performance of an infrared astronomical telescope with a 5-axis secondary mirror
Author(s): Eli Ettedgui-Atad; Colin M. Humphries
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Paper Abstract

The optical characteristics of a 5-axis secondary mirror are discussed, stressing the infrared sky chopping and adaptive tip/tilt control capabilities. Sources of image degradation such as misalignments and manufacturing errors are considered. Different modes of operation for active, chopping, and adaptive control are described and examples of the required speed, range, and precision of these modes are presented.

Paper Details

Date Published: 1 December 1991
PDF: 8 pages
Proc. SPIE 1532, Analysis of Optical Structures, (1 December 1991); doi: 10.1117/12.48269
Show Author Affiliations
Eli Ettedgui-Atad, Royal Observatory Edinburgh (United Kingdom)
Colin M. Humphries, Royal Observatory Edinburgh (United Kingdom)


Published in SPIE Proceedings Vol. 1532:
Analysis of Optical Structures
Donald C. O'Shea, Editor(s)

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