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Proceedings Paper

Two-degree FOV prime focus corrector and ADC concepts for the 4.2m WHT
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Paper Abstract

We present two conceptual optical designs for a new refractive corrector for the prime focus of the 4.2m William Herschel Telescope, optimised to allow wide-field multi-object spectroscopy. The proposed designs satisfy the demanding requirement that the PSF be smaller than 0.5 arcsec (80% encircled energy) over a two degree FOV and a wavelength range of 370 - 1000 nm. We discuss the specifications and describe the design process for the correctors, which also act as atmospheric dispersion correctors (ADC). The designs we present form the basis of a realistic manufacturable system.

Paper Details

Date Published: 21 July 2010
PDF: 11 pages
Proc. SPIE 7735, Ground-based and Airborne Instrumentation for Astronomy III, 773563 (21 July 2010); doi: 10.1117/12.856881
Show Author Affiliations
Tibor Agócs, Isaac Newton Group of Telescopes (Spain)
Marc Balcells, Isaac Newton Group of Telescopes (Spain)
Chris R. Benn, Isaac Newton Group of Telescopes (Spain)
Don Carlos Abrams, Isaac Newton Group of Telescopes (Spain)
Diego Cano Infantes, Isaac Newton Group of Telescopes (Spain)


Published in SPIE Proceedings Vol. 7735:
Ground-based and Airborne Instrumentation for Astronomy III
Ian S. McLean; Suzanne K. Ramsay; Hideki Takami, Editor(s)

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