Physics – Optics
Scientific paper
Nov 1989
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1989jmo....36.1415w&link_type=abstract
Journal of Modern Optics, Vol. 36, No. 11, p. 1415 - 1425
Physics
Optics
Active Optics
Scientific paper
In Part II of this paper (see Abstr. 031.052), the active correction of a 1 m test mirror was described in detail. A residual aberration term was found which still required correction in order to achieve the aim of the experiment: removal of all systematic defects leaving only statistical or high-frequency noise. The present paper describes the interferometric confirmation of the term and this final correction stage of the 1 m experiment. In parallel, the full-sized (3.58 m) primary of the ESO New Technology Telescope has been successfully figured by Carl Zeiss, Oberkochen. The specification and test results are given. An equivalent active correction to that performed on the 1 m test mirror was then carried out on the residual low-frequency terms of the primary, giving an image quality well within the diffraction limit.
Franza Francis
Giordano Paolo
Noethe Lothar
Tarenghi Marco
Wilson Raymond N.
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