Optical and optomechanical design of the WIYN High Resolution Infrared Camera

Robert H. Barkhouser; Stephen A. Smee; Margaret Meixner

doi:10.1117/12.578365

30 September 2004 Optical and optomechanical design of the WIYN High Resolution Infrared Camera

Robert H. Barkhouser, Stephen A. Smee, Margaret Meixner

Proceedings Volume 5492, Ground-based Instrumentation for Astronomy; (2004) https://doi.org/10.1117/12.578365
Event: SPIE Astronomical Telescopes + Instrumentation, 2004, Glasgow, United Kingdom

Abstract

The WIYN High Resolution Infrared Camera (WHIRC) is being developed for use on the WIYN 3.5 m telescope at Kitt Peak. It will mount on a Nasmyth port behind the recently commissioned WIYN Tip-Tilt Module (WTTM). WTTM is expected to routinely deliver 0.25" FWHM images in the near infrared (0.8-2.5 μm), with occasional periods of 0.12" diffraction-limited performance in the K band. WHIRC will take advantage of this superb imaging capability, offering a plate scale of 0.09" per pixel and a 3'x3' field-of-view (FOV) with the planned 2K² detector. Stringent moment loading requirements at the WTTM interface necessitate a compact, low mass design, which has been achieved using an all-refractive optical path. Tight centering tolerances on the lenses call for precision cryogenic lens assemblies. In this paper we present details of the optical and optomechanical designs, and engineering analyses completed to date.

Citation Download Citation

Robert H. Barkhouser, Stephen A. Smee, and Margaret Meixner "Optical and optomechanical design of the WIYN High Resolution Infrared Camera", Proc. SPIE 5492, Ground-based Instrumentation for Astronomy, (30 September 2004); https://doi.org/10.1117/12.578365

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