The analysis of the form of aspheric lens surfaces
McBride, J.W., Hill, M. and Jung, M. (1997) The analysis of the form of aspheric lens surfaces. In, Ford, D.G. and Postlethwaite, S.R. (eds.) Laser Metrology & Machine Performance III. International Conference on Laser Metrology and Machine Performance III UK, Computational Mechanics, 381-392. (Transactions on Engineering Sciences, 16).
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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.
|Item Type:||Book Section|
|Subjects:||T Technology > TS Manufactures
T Technology > TJ Mechanical engineering and machinery
|Divisions:||University Structure - Pre August 2011 > School of Engineering Sciences
|Date Deposited:||03 Nov 2006|
|Last Modified:||02 Mar 2012 11:25|
|RDF:||RDF+N-Triples, RDF+N3, RDF+XML, Browse.|
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