Precessions aspheric polishing: - New results from the development programme

D. D. Walker; A. T.H. Beaucamp; R. G. Bingham; D. Brooks; R. Freeman; S. W. Kim; A. King; G. McCavana; R. Morton; D. Riley; J. Simms

Precessions aspheric polishing: - New results from the development programme

D. D. Walker, A. T.H. Beaucamp, R. G. Bingham, D. Brooks, R. Freeman, S. W. Kim, A. King, G. McCavana, R. Morton, D. Riley, J. Simms

Research output: Contribution to journal › Conference article › peer-review

Abstract

The Precessions process for producing aspheric and other optical surfaces is undergoing rapid development. In this paper, we summarise the considerable success achieved in controlling the repeatability of the process on both the 200mm and 600mm machines, and illustrate this with examples of aspherics that have been produced. We particularly describe our approach to fine form-control. This has required the development of various strategies to moderate the volumetric removal rates, in order to give the required sensitivity of removal. We conclude with a discussion of the scaling laws that apply when adapting the process to smaller and larger sized parts. This is illustrated by predicting the process-parameters for mass-producing segments for extremely large telescopes.

Original language	English
Pages (from-to)	15-28
Number of pages	14
Journal	Proceedings of SPIE - The International Society for Optical Engineering
Volume	5180
Publication status	Published - 2003
Externally published	Yes
Event	Optical Manufacturing and Testing V - San Diego, CA, United States Duration: 2003 Aug 3 → 2003 Aug 5

ASJC Scopus subject areas

Electronic, Optical and Magnetic Materials
Condensed Matter Physics
Computer Science Applications
Applied Mathematics
Electrical and Electronic Engineering

Cite this

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title = "Precessions aspheric polishing: - New results from the development programme",

abstract = "The Precessions process for producing aspheric and other optical surfaces is undergoing rapid development. In this paper, we summarise the considerable success achieved in controlling the repeatability of the process on both the 200mm and 600mm machines, and illustrate this with examples of aspherics that have been produced. We particularly describe our approach to fine form-control. This has required the development of various strategies to moderate the volumetric removal rates, in order to give the required sensitivity of removal. We conclude with a discussion of the scaling laws that apply when adapting the process to smaller and larger sized parts. This is illustrated by predicting the process-parameters for mass-producing segments for extremely large telescopes.",

author = "Walker, {D. D.} and Beaucamp, {A. T.H.} and Bingham, {R. G.} and D. Brooks and R. Freeman and Kim, {S. W.} and A. King and G. McCavana and R. Morton and D. Riley and J. Simms",

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T2 - Optical Manufacturing and Testing V

AU - Walker, D. D.

AU - Beaucamp, A. T.H.

AU - Bingham, R. G.

AU - Brooks, D.

AU - Freeman, R.

AU - Kim, S. W.

AU - King, A.

AU - McCavana, G.

AU - Morton, R.

AU - Riley, D.

AU - Simms, J.

PY - 2003

Y1 - 2003

N2 - The Precessions process for producing aspheric and other optical surfaces is undergoing rapid development. In this paper, we summarise the considerable success achieved in controlling the repeatability of the process on both the 200mm and 600mm machines, and illustrate this with examples of aspherics that have been produced. We particularly describe our approach to fine form-control. This has required the development of various strategies to moderate the volumetric removal rates, in order to give the required sensitivity of removal. We conclude with a discussion of the scaling laws that apply when adapting the process to smaller and larger sized parts. This is illustrated by predicting the process-parameters for mass-producing segments for extremely large telescopes.

AB - The Precessions process for producing aspheric and other optical surfaces is undergoing rapid development. In this paper, we summarise the considerable success achieved in controlling the repeatability of the process on both the 200mm and 600mm machines, and illustrate this with examples of aspherics that have been produced. We particularly describe our approach to fine form-control. This has required the development of various strategies to moderate the volumetric removal rates, in order to give the required sensitivity of removal. We conclude with a discussion of the scaling laws that apply when adapting the process to smaller and larger sized parts. This is illustrated by predicting the process-parameters for mass-producing segments for extremely large telescopes.

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AN - SCOPUS:11144354048

SN - 0277-786X

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JO - Proceedings of SPIE - The International Society for Optical Engineering

JF - Proceedings of SPIE - The International Society for Optical Engineering

Y2 - 3 August 2003 through 5 August 2003

ER -

Precessions aspheric polishing: - New results from the development programme

Abstract

ASJC Scopus subject areas

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