Tolerance verification of precision injection moulded Fresnel lenses

Dario Loaldi*, Matteo Calaon, Danilo Quagliotti, Paolo Parenti, Massimiliano Annoni, Guido Tosello

*Corresponding author for this work

Research output: Contribution to journalConference articleResearchpeer-review

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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.
Original languageEnglish
JournalProcedia CIRP
Volume75
Pages (from-to)137-142
ISSN2212-8271
DOIs
Publication statusPublished - 2018
Event15th CIRP Conference on Computer Aided Tolerancing (CIRP CAT 2018) - Milan, Italy
Duration: 11 Jun 201813 Jun 2018
Conference number: 15
http://www.cirpcat2018.polimi.it/

Conference

Conference15th CIRP Conference on Computer Aided Tolerancing (CIRP CAT 2018)
Number15
CountryItaly
CityMilan
Period11/06/201813/06/2018
Internet address

Keywords

  • Tolerancing
  • Injection Moulding
  • Injection Compression Moulding
  • Fresnel Lenses
  • Uncertainty
  • Micro-Metrology

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