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Proceedings Paper

Cryogenic performance of the NIRSPEC three-mirror anastigmat
Author(s): Joseph L. Robichaud; Brian Zellers; Richard Philippon; Ian S. McLean; Donald Frank Figer
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Paper Abstract

The cryogenic optical performance of an all aluminum three mirror anastigmat re-imager developed for the NIRSPEC instrument is reported. Details pertaining to the optical and mechanical design, structural/thermal modeling, initial performance projections, optical/mechanical fabrication, optical alignment, and optical testing procedures are all presented. The operational performance of the optical system at ambient and at cryogenic temperatures is presented and compared with initial performance projections. The optical subsystem has been delivered to UCLA for integration into the NIRSPEC instrument, final installation will be done at the Keck Observatory.

Paper Details

Date Published: 21 August 1998
PDF: 9 pages
Proc. SPIE 3354, Infrared Astronomical Instrumentation, (21 August 1998); doi: 10.1117/12.317230
Show Author Affiliations
Joseph L. Robichaud, Sensor Systems Group, Inc. (United States)
Brian Zellers, Sensor Systems Group, Inc. (United States)
Richard Philippon, Sensor Systems Group, Inc. (United States)
Ian S. McLean, Univ. of California/Los Angeles (United States)
Donald Frank Figer, Univ. of California/Los Angeles (United States)


Published in SPIE Proceedings Vol. 3354:
Infrared Astronomical Instrumentation
Albert M. Fowler, Editor(s)

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