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Proceedings Paper

Process control in optical fabrication
Author(s): Oliver Faehnle
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Paper Abstract

Predictable and stable fabrication processes are essential for reliable cost and quality management in optical fabrication technology. This paper reports on strategies to generate and control optimum sets of process parameters for e.g. sub-aperture polishing of small optics (featuring clear apertures smaller than 2 mm). Emphasis is placed to distinguish between machine and process optimization demonstrating, that e.g. it is possible setting up ductile mode grinding process by other means than controlling critical depth of cut. Finally, a recently developed in situ testing technique is applied to monitor surface quality on-machine while abrasively working the surface under test enabling an on-line optimization of polishing processes eventually minimizing polishing time and fabrication cost.

Paper Details

Date Published: 5 October 2015
PDF: 9 pages
Proc. SPIE 9628, Optical Systems Design 2015: Optical Fabrication, Testing, and Metrology V, 962807 (5 October 2015); doi: 10.1117/12.2191881
Show Author Affiliations
Oliver Faehnle, FISBA AG (Switzerland)

Published in SPIE Proceedings Vol. 9628:
Optical Systems Design 2015: Optical Fabrication, Testing, and Metrology V
Angela Duparré; Roland Geyl, Editor(s)

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