Removal of Mid Spatial-Frequency Features in Mirror Segments
Yu, Guoyu, Hongyu, Li and Walker, David (2011) Removal of Mid Spatial-Frequency Features in Mirror Segments. Journal of the European Optical Society Rapid Publications, 6 (11044). ISSN 1990-2573
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Official URL: http://www.jeos.org/index.php/jeos_rp/article/view...
Abstract
BoX grinding technology has been adopted in our E-ELT segment process. The mid-spatial frequency features generated can be removed by several 'smoothing' processes. We have reported here a novel method that can smooth these features whilst avoiding edge down-turn. This process can be scaled up to E-ELT segment fabrication time-scale. It has been experimentally demonstrated that the surface quality is good enough for subsequent Zeeko form correction technology to achieve form specifications.
| Item Type: | Article |
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| Additional Information: | Copyright © The Authors. All rights reserved. Metadata is only available from this site, however the full text published version can be viewed at the journals website at http://dx.doi.org/10.2971/jeos.2011.11044 |
| Keywords: | segments, CNC polishing, mid-spatial frequency |
| Divisions: | ?? GlyndwrUniversity ?? |
| Depositing User: | ULCC Admin |
| Date Deposited: | 04 Aug 2012 00:12 |
| Last Modified: | 11 Dec 2017 20:07 |
| URI: | https://wrexham.repository.guildhe.ac.uk/id/eprint/4002 |
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