The 'Precessions' tooling for polishing and figuring flat, spherical and aspheric surfaces

David D. Walker; David Brooks; Andrew King; Richard Freeman; Roger Morton; Gerry McCavana; Sug Whan Kim

doi:10.1364/OE.11.000958

The 'Precessions' tooling for polishing and figuring flat, spherical and aspheric surfaces

David D. Walker, David Brooks, Andrew King, Richard Freeman, Roger Morton, Gerry McCavana, Sug Whan Kim

Research output: Contribution to journal › Article › peer-review

338 Citations (Scopus)

Abstract

The Precessions™ process has been developed for the control of texture ('polishing'), preservation of form during polishing, and control of form ('figuring'), on flat, spherical and aspheric surfaces. In this first and introductory paper, we summarize the need for aspherics, review some aspheric technologies, and then distill a 'wish-list' of attributes for an aspheric process. Within this context, we focus on special properties of Precessions tools, their use in a family of 7-axis CNC polishing machines, and present experimental results.

Original language	English
Pages (from-to)	958-964
Number of pages	7
Journal	Optics Express
Volume	11
Issue number	8
DOIs	https://doi.org/10.1364/OE.11.000958
Publication status	Published - 21 Apr 2003
Externally published	Yes

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AU - McCavana, Gerry

AU - Kim, Sug Whan

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AB - The Precessions™ process has been developed for the control of texture ('polishing'), preservation of form during polishing, and control of form ('figuring'), on flat, spherical and aspheric surfaces. In this first and introductory paper, we summarize the need for aspherics, review some aspheric technologies, and then distill a 'wish-list' of attributes for an aspheric process. Within this context, we focus on special properties of Precessions tools, their use in a family of 7-axis CNC polishing machines, and present experimental results.

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The 'Precessions' tooling for polishing and figuring flat, spherical and aspheric surfaces

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