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Proceedings Paper

EMIR optomechanics
Author(s): Sonia Barrera; Alejandro Villegas; Javier Fuentes; Santiago Correa; Jaime Perez; Pablo Redondo; Rene Restrepo; Vicente Sanchez; Fabio Tenegi; Francisco Garzon; Jesus Patron
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Paper Abstract

EMIR is a NIR multiobject spectrograph with imaging capabilities to be used at the GTC. A general description of instrument performances, as well as the updated optical and mechanical layouts, can be found elsewhere on these proceedings (reference documents 4, 6 and 7). After the successful results of the Preliminary Design Review in March 2003, EMIR optical design is now complete. Some specific features of the optical components make it particularly difficult to mount them in the instrument. For example, the first collimator lens in EMIR is one of the largest Fused Silica lenses ever mounted to work under cryogenic conditions, and some other lenses in the system present features such as aspheric surfaces, tight centering tolerances etc. The analysis of the testing being done in order to validate three different lens mounting design concepts is presented here, as well as the detailed status of the lens mounting design solutions adopted.

Paper Details

Date Published: 29 September 2004
PDF: 11 pages
Proc. SPIE 5495, Astronomical Structures and Mechanisms Technology, (29 September 2004); doi: 10.1117/12.550463
Show Author Affiliations
Sonia Barrera, Instituto de Astrofísica de Canarias (Spain)
Alejandro Villegas, Instituto de Astrofísica de Canarias (Spain)
Javier Fuentes, Instituto de Astrofísica de Canarias (Spain)
Santiago Correa, Instituto de Astrofísica de Canarias (Spain)
Jaime Perez, Instituto de Astrofísica de Canarias (Spain)
Pablo Redondo, Instituto de Astrofísica de Canarias (Spain)
Rene Restrepo, Instituto de Astrofísica de Canarias (Spain)
Vicente Sanchez, Instituto de Astrofísica de Canarias (Spain)
Fabio Tenegi, Instituto de Astrofísica de Canarias (Spain)
Francisco Garzon, Instituto de Astrofísica de Canarias (Spain)
Univ. de La Laguna (Spain)
Jesus Patron, Instituto de Astrofísica de Canarias (Spain)


Published in SPIE Proceedings Vol. 5495:
Astronomical Structures and Mechanisms Technology
Joseph Antebi; Dietrich Lemke, Editor(s)

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