Test results: EMIR optomechanics

S. Barrera; C. Gonzalez; A. Manescau; D. Abreu; S. Becerril; S. Correa; A. Fragoso; J. Perez; P. Redondo; R. Restrepo; P. Saavedra; V. Sanchez; F. Tenegi; F. Garzon; J. Patron

doi:10.1117/12.614899

30 August 2005 Test results: EMIR optomechanics

S. Barrera, C. Gonzalez, A. Manescau, D. Abreu, S. Becerril, S. Correa, A. Fragoso, J. Perez, P. Redondo, R. Restrepo, P. Saavedra, V. Sanchez, F. Tenegi, F. Garzon, J. Patron

Author Affiliations +

Proceedings Volume 5877, Optomechanics 2005; 58770Y (2005) https://doi.org/10.1117/12.614899
Event: Optics and Photonics 2005, 2005, San Diego, California, United States

Abstract

EMIR is a NIR multiobject spectrograph with imaging capabilities to be used at the GTC. The first collimator lens in EMIR, made of Fused Silica, has an outer diameter of 490 mm, and a weight of 265 N, which make it one of the largest Fused Silica lenses ever mounted to work under cryogenic conditions. The results of the various tests being done at the IAC (with two different lens dummies) in order to validate a mounting design concept for this lens, are presented here. The radial support concept tested consists of three contact areas around the lens, one of which is a PTFE block, preloaded by coil springs and the other two are fixed supports made of Aluminum and PTFE, dimensioned in order to keep lens centered both at room temperature and under operation conditions.

Citation Download Citation

S. Barrera, C. Gonzalez, A. Manescau, D. Abreu, S. Becerril, S. Correa, A. Fragoso, J. Perez, P. Redondo, R. Restrepo, P. Saavedra, V. Sanchez, F. Tenegi, F. Garzon, and J. Patron "Test results: EMIR optomechanics", Proc. SPIE 5877, Optomechanics 2005, 58770Y (30 August 2005); https://doi.org/10.1117/12.614899

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available