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Proceedings Paper

Adjustable Mosaic Grating Mounts
Author(s): G. A. Brealey; J. M. Fletcher; W. A. Grundmann; E. H. Richardson
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Paper Abstract

Three 30-cm mosaic gratings are being built for the Coude spectrograph of the Canada-France-Hawaii 3.6 meter telescope. The largest mosaic is 30 by 60 cm and is composed of four 15 by 30 cm echelle gratings. The individual gratings have coarse, fine, and super-fine adjustments. The alignment can be checked, and corrected if necessary, by one person in a few minutes. An earlier version of these mosaics has been in operation at the Dominion Astrophysical Observatory for many years and has proven to be practical and popular with the astronomers.

Paper Details

Date Published: 10 February 1981
PDF: 5 pages
Proc. SPIE 0240, Periodic Structures, Gratings, Moire Patterns, and Diffraction Phenomena I, (10 February 1981); doi: 10.1117/12.965659
Show Author Affiliations
G. A. Brealey, Herzberg Institute of Astrophysics (Canada)
J. M. Fletcher, Herzberg Institute of Astrophysics (Canada)
W. A. Grundmann, Herzberg Institute of Astrophysics (Canada)
E. H. Richardson, Herzberg Institute of Astrophysics (Canada)

Published in SPIE Proceedings Vol. 0240:
Periodic Structures, Gratings, Moire Patterns, and Diffraction Phenomena I
C. H. Chi; E. G. Loewen; C. L. O'Bryan III, Editor(s)

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