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Opt Express. 2007 Apr 16;15(8):5218-26.

Shape specification for axially symmetric optical surfaces.

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  • 1QED Technologies, 1040 University Ave., Rochester, NY 14607, USA.


Advances in fabrication and testing are allowing aspheric optics to have greater impact through their increased prevalence and complexity. The most widely used characterization of surface shape is numerically deficient, however. Furthermore, with regard to tolerancing and to constraints for manufacturability, this representation is poorly suited for design purposes. Effective alternatives are therefore presented for working with rotationally symmetric surfaces that are either (i) strongly aspheric or (ii) constrained in terms of the slope in the departure from a best-fit sphere.

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