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Proceedings Paper

The need for fiducials on freeform optical surfaces
Author(s): Kate Medicus; Jessica D. Nelson; Matthew Brunelle
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Paper Abstract

The evolution from spherical, to aspheric, to freeform optics is quickly progressing towards more complex freeform surfaces. Freeform surfaces typically have little to no symmetry making the alignment of the surfaces difficult. The alignment of such freeform surfaces relative to the other features on the optic has been little considered. A typical alignment specification like wedge (edge thickness difference) is not well defined for freeform optics, nor is the wedge measurement. We show that by using fiducials during the manufacturing of freeform surfaces, the alignment and locating of the freeform surface can be specified and measured.

Paper Details

Date Published: 3 September 2015
PDF: 7 pages
Proc. SPIE 9582, Optical System Alignment, Tolerancing, and Verification IX, 958204 (3 September 2015); doi: 10.1117/12.2190970
Show Author Affiliations
Kate Medicus, Optimax Systems, Inc. (United States)
Jessica D. Nelson, Optimax Systems, Inc. (United States)
Matthew Brunelle, Optimax Systems, Inc. (United States)


Published in SPIE Proceedings Vol. 9582:
Optical System Alignment, Tolerancing, and Verification IX
José Sasián; Richard N. Youngworth, Editor(s)

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