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Proceedings Paper

Tolerancing the impact of mid-spatial frequency surface errors of lenses on distortion and image homogeneity
Author(s): Karin Achilles; Kristina Uhlendorf; Dennis Ochse
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Paper Abstract

The polishing of high-precision surfaces of optical elements like spheres, aspheres and mirrors requires small polishing tools to achieve rms-surface errors below 2 nm. This can lead to typical mid-spatial frequency surface errors that cannot be considered by standard tolerancing tools anymore but might have a major impact on image performance criteria like wavefront error, distortion or image homogeneity. In this paper we will discuss an analytical approach to describe the effect of mid-spatial frequency surface errors on distortion and image homogeneity. Furthermore we have realized a Zemax user-defined surface allowing us to formulate rings and spokes of different frequencies and amplitudes and therefore giving us a tool to do the tolerancing of mid-spatial frequency errors in Zemax directly. We will present the results especially the dependency on the position of the surface in the optical system as well as the ratio of beam diameter to surface error size.

Paper Details

Date Published: 30 September 2015
PDF: 6 pages
Proc. SPIE 9626, Optical Systems Design 2015: Optical Design and Engineering VI, 96260A (30 September 2015); doi: 10.1117/12.2191261
Show Author Affiliations
Karin Achilles, JENOPTIK Optical Systems GmbH (Germany)
Kristina Uhlendorf, JENOPTIK Optical Systems GmbH (Germany)
Dennis Ochse, JENOPTIK Optical Systems GmbH (Germany)

Published in SPIE Proceedings Vol. 9626:
Optical Systems Design 2015: Optical Design and Engineering VI
Laurent Mazuray; Rolf Wartmann; Andrew P. Wood, Editor(s)

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