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Proceedings Paper

Interferometric testing of annular apertures
Author(s): Mauro Melozzi; Luis Pezzati
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Paper 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.

Paper Details

Date Published: 1 January 1993
PDF: 8 pages
Proc. SPIE 1781, Specification and Measurement of Optical Systems, (1 January 1993); doi: 10.1117/12.140975
Show Author Affiliations
Mauro Melozzi, Officine Galileo SpA (Italy)
Luis Pezzati, Officine Galileo SpA (Italy)

Published in SPIE Proceedings Vol. 1781:
Specification and Measurement of Optical Systems

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