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Proceedings Paper

Handling 20 tons of honeycomb mirror with a very gentle touch
Author(s): Warren B. Davison; Joseph T. Williams; John M. Hill
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Paper Abstract

The 6.5 meter and 8.4 meter mirrors being produced at Steward Observatory have to be lifted, turned, ground, polished, shipped and installed without exceeding 0.7 MPa (100 psi) stress in the glass. Many pieces of specialized equipment and some innovations are required to do this on a tight budget. We have developed lifting fixtures that are either glued on or held by vacuum. We have also designed turning rings that fill our lab, and transportation boxes to hold the mirror horizontal, vertical or in a ship. The sheer size and mass of the mirrors and equipment, plus the very stringent constraints makes the solutions interesting. This may not be the part of telescope design and construction that attracts the most attention, unless...

Paper Details

Date Published: 25 August 1998
PDF: 8 pages
Proc. SPIE 3352, Advanced Technology Optical/IR Telescopes VI, (25 August 1998); doi: 10.1117/12.319257
Show Author Affiliations
Warren B. Davison, Steward Observatory/Univ. of Arizona (United States)
Joseph T. Williams, Multiple Mirror Telescope Observatory (United States)
John M. Hill, Steward Observatory/Univ. of Arizona (United States)

Published in SPIE Proceedings Vol. 3352:
Advanced Technology Optical/IR Telescopes VI
Larry M. Stepp, Editor(s)

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