Removal of mid spatial-frequency features in mirror segments

Research output: Contribution to journalArticle

18 Citations (Scopus)

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.

LanguageEnglish
Article number11044
Number of pages1
JournalJournal of the European Optical Society
Volume6
DOIs
Publication statusPublished - 1 Jan 2011
Externally publishedYes

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Cite this

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title = "Removal of mid spatial-frequency features in mirror segments",
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.",
keywords = "Cnc polishing, Mid-spatial frequency, Segments",
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Removal of mid spatial-frequency features in mirror segments. / Yu, G.; Li, H.; Walker, D.

In: Journal of the European Optical Society, Vol. 6, 11044, 01.01.2011.

Research output: Contribution to journalArticle

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AU - Li, H.

AU - Walker, D.

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KW - Segments

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