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Proceedings Paper

Recent advances in subaperture finishing
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Paper Abstract

Subaperture polishing technologies have radically changed the landscape of precision optics manufacturing and enabled the production of components with higher accuracies and increasingly difficult figure requirements. Magnetorheological Finishing (MRF), for example, is a production-proven, deterministic, subaperture finishing technology that has excelled at overcoming the limitations of traditional polishing. Several recent MRF developments will be presented, including complementing Single Point Diamond Turning (SPDT) technology, transmitted wavefront correction, and finishing of increasingly large apertures. We will also discuss the high precision finishing of challenging optics using a newly developed jet-based technology. A series of examples spanning a wide range of materials, geometries and specifications will be presented. Specific areas to be discussed include micro-optics (i.e., optics less than 5 mm in size), which typically require a very labor-intensive iterative process to finish, and steeply concave optics, such as domes, which are typically not well suited for sub-aperture polishing processes.

Paper Details

Date Published: 25 October 2005
PDF: 12 pages
Proc. SPIE 5965, Optical Fabrication, Testing, and Metrology II, 59650L (25 October 2005); doi: 10.1117/12.625807
Show Author Affiliations
Marc Tricard, QED Technologies, Inc. (United States)
Aric Shorey, QED Technologies, Inc. (United States)
Paul Dumas, QED Technologies, Inc. (United States)

Published in SPIE Proceedings Vol. 5965:
Optical Fabrication, Testing, and Metrology II
Angela Duparré; Roland Geyl; Lingli Wang, Editor(s)

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