Diamond fly cutting of aluminum thermal infrared flat mirrors for the OSIRIS-REx Thermal Emission Spectrometer (OTES) instrument

Christopher E. Groppi; Matthew Underhill; Zoltan Farkas; Daniel Pelham

doi:10.1117/12.2231536

22 July 2016 Diamond fly cutting of aluminum thermal infrared flat mirrors for the OSIRIS-REx Thermal Emission Spectrometer (OTES) instrument

Christopher E. Groppi, Matthew Underhill, Zoltan Farkas, Daniel Pelham

Author Affiliations +

Proceedings Volume 9912, Advances in Optical and Mechanical Technologies for Telescopes and Instrumentation II; 99123V (2016) https://doi.org/10.1117/12.2231536
Event: SPIE Astronomical Telescopes + Instrumentation, 2016, Edinburgh, United Kingdom

Abstract

We present the fabrication and measurement of monolithic aluminum flat mirrors designed to operate in the thermal infrared for the OSIRIS-Rex Thermal Emission Spectrometer (OTES) space instrument. The mirrors were cut using a conventional fly cutter with a large radius diamond cutting tool on a high precision Kern Evo 3-axis CNC milling machine. The mirrors were measured to have less than 150 angstroms RMS surface error.

Citation Download Citation

Christopher E. Groppi, Matthew Underhill, Zoltan Farkas, and Daniel Pelham "Diamond fly cutting of aluminum thermal infrared flat mirrors for the OSIRIS-REx Thermal Emission Spectrometer (OTES) instrument", Proc. SPIE 9912, Advances in Optical and Mechanical Technologies for Telescopes and Instrumentation II, 99123V (22 July 2016); https://doi.org/10.1117/12.2231536

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