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  1. OA@INAF
  2. PRODOTTI RICERCA INAF
  3. 3 CONTRIBUTI IN ATTI DI CONVEGNO (Proceedings)
  4. 3.01 Contributi in Atti di convegno
Please use this identifier to cite or link to this item: http://hdl.handle.net/20.500.12386/28173
Title: WEAVE spectrograph cameras: the polishing of the spherical lenses
Authors: Izazaga, Rafael
Carrasco, Esperanza
Hidalgo, Andrea
Aguirre, Daniel
Terlevich, Elena
Terlevich, Roberto
Dalton, Gavin
Trager, Scott
Lopez Aguerri, J. Alfonso
BONIFACIO, PIERCARLO
VALLENARI, Antonella 
Abrams, Don Carlos
Middleton, Kevin
Issue Date: 2018
Volume: Advances in Optical and Mechanical Technologies for Telescopes and Instrumentation III
Editors: Navarro, Ramón ; Geyl, Roland
Series: PROCEEDINGS OF SPIE 
Number: 10706
First Page: 107063J
Abstract: WEAVE is the new wide field multi-object and integral field survey facility for the prime focus of the 4.2 m William Herschel Telescope. WEAVE fiber-fed spectrograph offers two resolutions, R 5000 and 20,000. The dual-beam spectrograph has two cameras: the blue one optimized for the wavelength interval of 366 - 606 nm and the red one for 579 - 959 nm. Each camera is formed by eight lenses, one aspherical and seven spherical. The lenses of the red camera are identical to the lenses of the blue camera only differentiated by the anti-reflection coating wavelength range. The diameter of the largest surface is 320 mm while of the smallest is 195 mm. INAOE, as a member of the collaboration is responsible of the manufacturing of the 14 spherical lenses and the collimator mirror. Here, we describe the main characteristics of WEAVE high precision cameras lenses, the manufacturing challenges giving the combination of OHARA glasses properties, dimensions and specifications. We discuss the solutions developed to achieve the very demanding specifications.
Conference Name: Advances in Optical and Mechanical Technologies for Telescopes and Instrumentation III
Conference Place: Austin, Texas, United States
Conference Date: 10-15 June, 2018
URI: http://hdl.handle.net/20.500.12386/28173
URL: https://www.spiedigitallibrary.org/conference-proceedings-of-spie/10706/2314124/WEAVE-spectrograph-cameras--the-polishing-of-the-spherical-lenses/10.1117/12.2314124.short
ISSN: 0277-786X
ISBN: 9781510619661
DOI: 10.1117/12.2314124
Bibcode ADS: 2018SPIE10706E..3JI
Fulltext: open
Appears in Collections:3.01 Contributi in Atti di convegno

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