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Proceedings Paper

Advances in freeform manufacturing
Author(s): Franciscus Wolfs; James Ross; Scott DeFisher
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Paper Abstract

As freeform and conformal optics are becoming more broadly used in the optics industry, the manufacturing technology and processing conventions need to be developed to meet the requirements and challenges posed in the manufacturing of these parts. These optics reduce the number of total optics required in an assembly in addition to overcoming the limitations in rotationally symmetric optics. While these optics offer many benefits for system capabilities, these traits also make manufacturing and metrology more difficult. In order to manufacture these complex optics, OptiPro has been focusing on development of the software, hardware, and processing techniques required to meet the stringent part tolerances. For software, OptiPro has been working on the continual development of PROSurf, a CAM package geared specifically toward freeform optics, and the UltraSurf software, which controls OptiPro’s non-contact metrology system. For hardware, the main area of focus has been on fixture development: how should the part be held so that it can be transferred between machines repeatably while still providing adequate support during processing and access to the alignment features. One of the focus areas of processing improvement has been on developing the conventions for the surface datums used for locating the surface and referencing analyzed data against. This paper will present the challenges in freeform manufacturing along with the solutions that we have developed to meet these manufacturing needs.

Paper Details

Date Published: 15 November 2019
PDF: 8 pages
Proc. SPIE 11175, Optifab 2019, 1117511 (15 November 2019); doi: 10.1117/12.2535919
Show Author Affiliations
Franciscus Wolfs, OptiPro Systems, LLC (United States)
James Ross, OptiPro Systems, LLC (United States)
Scott DeFisher, OptiPro Systems, LLC (United States)


Published in SPIE Proceedings Vol. 11175:
Optifab 2019
Blair L. Unger; Jessica DeGroote Nelson, Editor(s)

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