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Proceedings Paper

Fast tip-tilt segment alignment for segmented mirrors
Author(s): Jure Skvarč
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Paper Abstract

A method for fast identification of segments and alignment of the segmented mirrors has been developed and applied for the deformable mirror of the WHT AO system (NAOMI) and for the GTC 36-segment primary mirror. By moving each segment by a known but different amount and in a different direction it is possible to identify many segments simultaneously using a pattern-matching algorithm which finds spots that have moved by a segment-specific vector from one image to another. The method does not need any special optical setup. The applicability of the method for the segmented primary mirrors of future telescopes is discussed.

Paper Details

Date Published: 27 July 2016
PDF: 13 pages
Proc. SPIE 9906, Ground-based and Airborne Telescopes VI, 990669 (27 July 2016); doi: 10.1117/12.2231881
Show Author Affiliations
Jure Skvarč, Isaac Newton Group of Telescopes (Spain)

Published in SPIE Proceedings Vol. 9906:
Ground-based and Airborne Telescopes VI
Helen J. Hall; Roberto Gilmozzi; Heather K. Marshall, Editor(s)

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