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Proceedings Paper

Precision metrology of dihedral angle error in prisms and corner cubes for the Space Interferometry Mission
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Paper Abstract

Recent work done at CSIRO's Australian Centre for Precision Optics has pushed the fabrication limits on optical retroreflectors. To achieve dihedral angle errors well below an arcsecond, the measurement accuracy was required to be 0.1 arcsec or better. On this level, the error introduced by the interferometer's instrument function is not negligible. So-called "collimation errors", or more generally, wavefront aberrations, can significantly falsify the angle measurements. This paper describes and demonstrates the basic concepts for interferometric measurement of dihedral angle errors in retroreflectors from a practical point of view. We discuss obvious and subtle stumbling blocks, summarize practical experiences, and show some results of the recent joint work between JPL and CSIRO.

Paper Details

Date Published: 18 August 2005
PDF: 11 pages
Proc. SPIE 5869, Optical Manufacturing and Testing VI, 58690W (18 August 2005); doi: 10.1117/12.613591
Show Author Affiliations
Jan Burke, CSIRO Industrial Physics (Australia)
Bozenko F. Oreb, CSIRO Industrial Physics (Australia)
Benjamin C. Platt, Jet Propulsion Lab. (United States)
Bijan Nemati, Jet Propulsion Lab. (United States)

Published in SPIE Proceedings Vol. 5869:
Optical Manufacturing and Testing VI
H. Philip Stahl, Editor(s)

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