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Proceedings Paper

8m Class Primary: Figuring, Testing, Handling
Author(s): Ernst Dieter Knohl; Andreas Schleth; Klaus Beckstette; Michael Kuchel
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Paper Abstract

The evolution of traditional polishing techniques and a new method developed at Carl Zeiss are reviewed with respect to their suitability to figure large and fast primaries of the 8m class. The role of fast metrology techniques in the figuring process is demonstrated with the ESO NTT primary mirror. The figuring scenario for an 8m mirror as a synthesis of advanced tool technology and fast metrology methods is presented as state of the art at Carl Zeiss. For handling and figuring support of large mirrors new concepts have to be applied. Solutions for the critical steps are outlined.

Paper Details

Date Published: 13 April 1989
PDF: 8 pages
Proc. SPIE 1013, Optical Design Methods, Applications and Large Optics, (13 April 1989); doi: 10.1117/12.949382
Show Author Affiliations
Ernst Dieter Knohl, Carl Zeiss (Germany)
Andreas Schleth, Carl Zeiss (Germany)
Klaus Beckstette, Carl Zeiss (Germany)
Michael Kuchel, Carl Zeiss (Germany)


Published in SPIE Proceedings Vol. 1013:
Optical Design Methods, Applications and Large Optics
Andre Masson; Joachim J. Schulte-in-den-Baeumen; Hannfried Zuegge, Editor(s)

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