The University of Southampton
University of Southampton Institutional Repository

3-D laser metrology for the assessment of curved surface

3-D laser metrology for the assessment of curved surface
3-D laser metrology for the assessment of curved surface
Measurement instruments are identified which are suitable for the assessment of curved samples typically used in the manufacture of lens technology. The advantages and limitations of each instrument are discussed, together with their suitability for measuring surfaces and producing data that can be analysed for sphericity information. A number of numerical sphere- fitting algorithms are suggested for radius of curvature analysis, and a Contour Analysis technique is developed for the assessment of errors of Form without the need to sphere-fit to the data. Contour Analysis is shown as a useful visualisation tool, allowing the user to clearly see surface distortions, such as astigmatism, without the need to interpret the deviation from sphere plots.
1853125369
537-548
Computational Mechanics Publications
Cross, K.J.
6d26e05d-3a5d-40bb-9529-4ce7f0c8320d
McBride, J.W.
d9429c29-9361-4747-9ba3-376297cb8770
Ford, D.G.
Postlethwaite, S.R.
Cross, K.J.
6d26e05d-3a5d-40bb-9529-4ce7f0c8320d
McBride, J.W.
d9429c29-9361-4747-9ba3-376297cb8770
Ford, D.G.
Postlethwaite, S.R.

Cross, K.J. and McBride, J.W. (1997) 3-D laser metrology for the assessment of curved surface. Ford, D.G. and Postlethwaite, S.R. (eds.) In Laser Metrology & Machine Performance III. vol. 16, Computational Mechanics Publications. pp. 537-548 .

Record type: Conference or Workshop Item (Paper)

Abstract

Measurement instruments are identified which are suitable for the assessment of curved samples typically used in the manufacture of lens technology. The advantages and limitations of each instrument are discussed, together with their suitability for measuring surfaces and producing data that can be analysed for sphericity information. A number of numerical sphere- fitting algorithms are suggested for radius of curvature analysis, and a Contour Analysis technique is developed for the assessment of errors of Form without the need to sphere-fit to the data. Contour Analysis is shown as a useful visualisation tool, allowing the user to clearly see surface distortions, such as astigmatism, without the need to interpret the deviation from sphere plots.

This record has no associated files available for download.

More information

Published date: 1997
Venue - Dates: International Conference on Laser Metrology and Machine Performance III, Huddersfield, UK, 1997-07-15 - 1997-07-17

Identifiers

Local EPrints ID: 21128
URI: http://eprints.soton.ac.uk/id/eprint/21128
ISBN: 1853125369
PURE UUID: 9902b08d-ea00-40fb-b193-73e3b7d9d7b9
ORCID for J.W. McBride: ORCID iD orcid.org/0000-0002-3024-0326

Catalogue record

Date deposited: 03 Nov 2006
Last modified: 16 Dec 2023 02:32

Export record

Contributors

Author: K.J. Cross
Author: J.W. McBride ORCID iD
Editor: D.G. Ford
Editor: S.R. Postlethwaite

Download statistics

Downloads from ePrints over the past year. Other digital versions may also be available to download e.g. from the publisher's website.

View more statistics

Atom RSS 1.0 RSS 2.0

Contact ePrints Soton: eprints@soton.ac.uk

ePrints Soton supports OAI 2.0 with a base URL of http://eprints.soton.ac.uk/cgi/oai2

This repository has been built using EPrints software, developed at the University of Southampton, but available to everyone to use.

We use cookies to ensure that we give you the best experience on our website. If you continue without changing your settings, we will assume that you are happy to receive cookies on the University of Southampton website.

×