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Proceedings Paper

Liquid mirrors: a progress report
Author(s): Ermanno F. Borra; Robert Content; Mark R. Drinkwater; Luc Girard; Louise Tremblay; Stan Szapiel; Brad K. Gibson; Paul Hickson; Christopher L. Morbey
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Paper Abstract

Since liquid mirrors are potentially useful in science (e.g., astronomy, atmospheric sciences, and optical testing), work has been undertaken to determine whether they are technologically feasible. A testing tower has been equipped with a scatterplate interferometer interfaced with a CCD for data acquisition and a microcomputer for data analysis. This equipment was used to test a 1.5-m-diameter f/2 liquid mirror, showing that it is diffraction limited; interferometric measurements give Strehl ratios of order 0.8. A 2.7-m-diameter liquid mirror and astronomical observatory presently under construction is briefly described.

Paper Details

Date Published: 1 July 1990
PDF: 10 pages
Proc. SPIE 1236, Advanced Technology Optical Telescopes IV, (1 July 1990); doi: 10.1117/12.19199
Show Author Affiliations
Ermanno F. Borra, Univ. Laval (Canada)
Robert Content, Univ. Laval (United Kingdom)
Mark R. Drinkwater, Univ. Laval (United States)
Luc Girard, Univ. Laval (Canada)
Louise Tremblay, Univ. Laval (Canada)
Stan Szapiel, Univ. Laval (Canada)
Brad K. Gibson, Univ. of British Columbia (Canada)
Paul Hickson, Univ. of British Columbia (Canada)
Christopher L. Morbey, Dominion Astrophysical Observatory (Canada)

Published in SPIE Proceedings Vol. 1236:
Advanced Technology Optical Telescopes IV
Lawrence D. Barr, Editor(s)

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