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Proceedings Paper

Steps Toward 8M Honeycomb Mirrors VII. Spin Casting An Experimental f/1 1.8m Honeycomb Blank Of Borosilicate Glass
Author(s): L. Goble; J. R. P. Angel; J. M. Hill
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Paper Abstract

In March 1985 a 1.8m diameter, f/1 focal ratio, lightweighted honeycomb sandwich mirror blank was cast at the Steward Observatory Mirror Laboratory. The front surface curvature was formed by spinning molten borosilicate glass at 15.6 rpm. The purpose of the casting was to test the method to be used to make 8m honeycomb mirrors. The blank will be used to test a polishing method for f/1 paraboloids.

Paper Details

Date Published: 21 February 1986
PDF: 9 pages
Proc. SPIE 0571, Large Optics Technology, (21 February 1986); doi: 10.1117/12.950389
Show Author Affiliations
L. Goble, University of Arizona (United States)
J. R. P. Angel, University of Arizona (United States)
J. M. Hill, University of Arizona (United States)

Published in SPIE Proceedings Vol. 0571:
Large Optics Technology
Gregory M. Sanger, Editor(s)

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