Recent advances in subaperture finishing

Marc Tricard; Aric Shorey; Paul Dumas

doi:10.1117/12.625807

25 October 2005 Recent advances in sub-aperture finishing

Marc Tricard, Aric Shorey, Paul Dumas

Proceedings Volume 5965, Optical Fabrication, Testing, and Metrology II; 59650L (2005) https://doi.org/10.1117/12.625807
Event: Optical Systems Design 2005, 2005, Jena, Germany

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.

Citation Download Citation

Marc Tricard, Aric Shorey, and Paul Dumas "Recent advances in sub-aperture finishing", Proc. SPIE 5965, Optical Fabrication, Testing, and Metrology II, 59650L (25 October 2005); https://doi.org/10.1117/12.625807

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