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Proceedings Paper

Thermal Behaviour Of A Thin Meniscus For SOFIA
Author(s): H.-J. Meier
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Paper Abstract

The behaviour of a thin meniscus in the thermal environment of SOFIA was calculated for different boundary conditions. Temperature fluctuations and time constants are given for significant nodes of the thermal Finite Element (FE) model. The worst case temperature distribution within the mirror was used, to calculate the mirror's deformation and its optical wavefront aberration. The figuring process of an equivalent thin meniscus, the ESO- Very Large Telescope (VLT) mirror, was calculated and found to be very sensitive against radial thermal gradients, caused by the meniscus shape of the mirror.

Paper Details

Date Published: 27 April 1988
PDF: 9 pages
Proc. SPIE 0973, Cryogenic Optical Systems and Instruments III, (27 April 1988); doi: 10.1117/12.948367
Show Author Affiliations
H.-J. Meier, Carl Zeiss (Germany)

Published in SPIE Proceedings Vol. 0973:
Cryogenic Optical Systems and Instruments III
Ramsey K. Melugin; Warren G. Pierce, Editor(s)

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