The analysis of the form of aspheric lens surfaces
The analysis of the form of aspheric lens surfaces
Recent developments in high precision machining have allowed for the design and manufacture of precision aspheric lenses. These have the advantage over conventional spherical lenses in that a multiple element lens can be replaced by a single aspheric lens. There are however difficulties both in the measurement of the lens surface after machining and the assessment of the quality of the lens. In this paper an aspheric lens surface is measured using a 3D Form Talysurf. The data are then analysed using an analytical least-squares technique to fit the points to an exponential function. The methods developed show that the machining methods can now be complemented by an analysis technique.
1853125369
381-392
Computational Mechanics Publications
McBride, J.W.
d9429c29-9361-4747-9ba3-376297cb8770
Hill, M.
0cda65c8-a70f-476f-b126-d2c4460a253e
Jung, M.
31725b8a-f72c-486b-8f3a-2a9e34670e03
1997
McBride, J.W.
d9429c29-9361-4747-9ba3-376297cb8770
Hill, M.
0cda65c8-a70f-476f-b126-d2c4460a253e
Jung, M.
31725b8a-f72c-486b-8f3a-2a9e34670e03
McBride, J.W., Hill, M. and Jung, M.
(1997)
The analysis of the form of aspheric lens surfaces.
Ford, D.G. and Postlethwaite, S.R.
(eds.)
In Laser Metrology & Machine Performance III.
vol. 16,
Computational Mechanics Publications.
.
Record type:
Conference or Workshop Item
(Paper)
Abstract
Recent developments in high precision machining have allowed for the design and manufacture of precision aspheric lenses. These have the advantage over conventional spherical lenses in that a multiple element lens can be replaced by a single aspheric lens. There are however difficulties both in the measurement of the lens surface after machining and the assessment of the quality of the lens. In this paper an aspheric lens surface is measured using a 3D Form Talysurf. The data are then analysed using an analytical least-squares technique to fit the points to an exponential function. The methods developed show that the machining methods can now be complemented by an analysis technique.
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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: 21127
URI: http://eprints.soton.ac.uk/id/eprint/21127
ISBN: 1853125369
PURE UUID: 39191678-e85f-44f5-8f75-d3fe2a90edcf
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Date deposited: 03 Nov 2006
Last modified: 16 Dec 2023 02:33
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Contributors
Author:
M. Jung
Editor:
D.G. Ford
Editor:
S.R. Postlethwaite
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