Interferometric testing of annular apertures

Mauro Melozzi; Luis Pezzati

doi:10.1117/12.140975

1 January 1993 Interferometric testing of annular apertures

Mauro Melozzi, Luis Pezzati

Proceedings Volume 1781, Specification and Measurement of Optical Systems; (1993) https://doi.org/10.1117/12.140975
Event: Optical Systems Design '92, 1992, Berlin, Germany

Abstract

Zernike circle polynomials generally employed in interferometric mastermind fitting software fail on an annular dominion. Therefore, when testing catadioptric optics erroneous results may be obtained. We performed interferometric measurements on annular pupils at increasing obscuration ratios, and we fitted the resulting aberration wave-fronts using either Zernike circle polynomials and another polynomial set orthogonal over an annulus. The results obtained with the two different sets are compared and the limits of the standard interferometric fitting software are pointed out.

Citation Download Citation

Mauro Melozzi and Luis Pezzati "Interferometric testing of annular apertures", Proc. SPIE 1781, Specification and Measurement of Optical Systems, (1 January 1993); https://doi.org/10.1117/12.140975

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