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Proceedings Paper

Galileo optic waiting for homing in
Author(s): Ernst-Dieter Knohl; Michael Schmidt
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Paper Abstract

In March 1990 a contract was signed between the `Osservatorio Astronomico di Padova' and CARL ZEISS Oberkochen to fabricate the Galileo optic, consisting of a 3.6 m Primary F12.2, the corresponding secondary and the flat folding tertiary. All three components are made from low expansion glass ceramic zerodur. The intrinsic quality of the complete optical train is specified with respect to the encircled energy: E 80% within 0.15 arcsec (phi) . The paper presents the results of the final interferometric tests.

Paper Details

Date Published: 1 June 1994
PDF: 7 pages
Proc. SPIE 2199, Advanced Technology Optical Telescopes V, (1 June 1994); doi: 10.1117/12.176168
Show Author Affiliations
Ernst-Dieter Knohl, Carl Zeiss Oberkochen (Germany)
Michael Schmidt, Carl Zeiss (Germany)

Published in SPIE Proceedings Vol. 2199:
Advanced Technology Optical Telescopes V
Larry M. Stepp, Editor(s)

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