Share Email Print

Proceedings Paper

ESO Active Optics System: Verification On A Lm Diameter Test Mirror
Author(s): L. Noethe; F. Franza; P. Giordano; R. N . Wilson
Format Member Price Non-Member Price
PDF $14.40 $18.00
cover GOOD NEWS! Your organization subscribes to the SPIE Digital Library. You may be able to download this paper for free. Check Access

Paper Abstract

Active optics, as envisaged for the ESO NTT, is based on four principles: 1. The linear relationship between the applied support force and the deformation of the mirror resting on a force based support system. 2. The orthogonality of the corrected aberrations. 3. The restriction to correct only those aberrations for which small forces are necessary, i.e. long wavelength aberrations as e.g. astigmatism and spherical aberration, which are also those modes induced by errors in the system. 4. The use of precalibrated forces for these corrections. Using the Shack-Hartmann test method for the analysis of the wavefront, we have confirmed these principles in an experiment with a lm diameter spherical mirror with a thickness of 18,9 mm and 78 supports.

Paper Details

Date Published: 20 August 1986
PDF: 5 pages
Proc. SPIE 0628, Advanced Technology Optical Telescopes III, (20 August 1986); doi: 10.1117/12.963543
Show Author Affiliations
L. Noethe, European Southern Observatory (Germany)
F. Franza, European Southern Observatory (Germany)
P. Giordano, European Southern Observatory (Germany)
R. N . Wilson, European Southern Observatory (Germany)

Published in SPIE Proceedings Vol. 0628:
Advanced Technology Optical Telescopes III
Lawrence D. Barr, Editor(s)

© SPIE. Terms of Use
Back to Top