Replica casting technique for micro Fresnel lenses characterization

Stefania Gasparin, Guido Tosello, Hans Nørgaard Hansen, J.A. Albajez

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The available measuring techniques are not always suitable for the characterization of optical surfaces such as Fresnel lenses or polished specimens. A way to overcome these challenges is to reproduce the optical components surface using a polymer casting method and to measure the replicated surface. The aim of this paper is to investigate the replica technique when applied to micro structured specimens such as moulds for injection moulding of Fresnel lenses. Stability studies, replication fidelity investigations and dimensional measurements were performed in order to validate the performance of the replication method.
Original languageEnglish
Title of host publicationProceedings of the 12th euspen International Conference
Publication date2012
Publication statusPublished - 2012
Event12th euspen International Conference - Stockholm, Sweden
Duration: 4 Jun 201212 Jun 2012


Conference12th euspen International Conference
Internet address

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Gasparin, S., Tosello, G., Hansen, H. N., & Albajez, J. A. (2012). Replica casting technique for micro Fresnel lenses characterization. In Proceedings of the 12th euspen International Conference (Vol. 2, pp. 319-311)