1 November 1997 Fabrication and testing of the ITTT beryllium secondary mirror
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Abstract
This paper describes the process by which Hughes Danbury Optical Systems successfully manufactured a beryllium secondary mirror for the NASA Jet Propulsion Laboratory's IR Telescope Technology Testbed. The secondary was fabricated and tested using conventional methods. Fiducialization was sued to calibrate and remove all systematic errors from the Hindle test. Additionally, surface roughness and scatter were fully characterized.
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H. Philip Stahl, Dan Radacsi, Thomas J. Heydenburg, Austin Gehan, Robert Paul Bourgeois, Bob Radomski, David A. Hansen, Ken Kearney, Mark T. Stier, Steven A. Macenka, "Fabrication and testing of the ITTT beryllium secondary mirror", Proc. SPIE 3134, Optical Manufacturing and Testing II, (1 November 1997); doi: 10.1117/12.295156; https://doi.org/10.1117/12.295156
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