Injection Moulding (IM) and Injection Compression Moulding (ICM) are the leading process technologies to enable mass manufacturing of Fresnel lenses. Even though ICM requires a more expensive and complex process, it is proven to lead to higher optical performances in comparison with IM. In this study, tolerancing for ICM and IM addresses the geometrical accuracy and precision of the two manufacturing processes when micro structures of Fresnel lens surfaces are taken into account.

Tolerance verification of precision injection moulded Fresnel lenses

Loaldi, Dario;Parenti, Paolo;Annoni, Massimiliano;
2018

Abstract

Injection Moulding (IM) and Injection Compression Moulding (ICM) are the leading process technologies to enable mass manufacturing of Fresnel lenses. Even though ICM requires a more expensive and complex process, it is proven to lead to higher optical performances in comparison with IM. In this study, tolerancing for ICM and IM addresses the geometrical accuracy and precision of the two manufacturing processes when micro structures of Fresnel lens surfaces are taken into account.
Proceedings of the The 15th CIRP Conference on Computer Aided Tolerancing, CIRP CAT 2018
Tolerancing, Injection Moulding, Injection Compression Moulding, Fresnel Lenses, Uncertainty, Micro-Metrology
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Utilizza questo identificativo per citare o creare un link a questo documento: http://hdl.handle.net/11311/1072091
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