Reference algorithms and metrology on aspherical and freeform lenses

Project: EU project

Project Details


Strengthening the metrology for optical surfaces.

The use of aspheres and freeforms is growing rapidly, because of their unmatched optical performance. Thus, there is an urgent need to strengthen metrology for optical surfaces.

Project develops reference algorithms, and standards as well as traceable metrology for aspherical and freeform optical elements.

VTT MIKES builds an instrument to measure aspherical and freeform elements with a few tens of nanometre accuracy.

Call 2015: SI Broader Scope

This project has received funding from the EMPIR programme co-financed by the Participating States and from the European Union’s Horizon 2020 research and innovation programme.
Effective start/end date1/06/1631/05/19

Collaborative partners

  • Laboratoire National de Métrologie et d’Essais (LNE) (lead)
  • BA66 National metrology institute VTT MIKES
  • Czech Metrology Institute (CMI) (Project partner)
  • German National Metrology Institute (PTB) (Project partner)
  • Service Métrologie Scientifique (SMD) (Project partner)
  • TÜBİTAK National Metrology Institute (UME) (Project partner)
  • École Normale Supérieure Paris-Saclay (Project partner)
  • Institute of Plasma Physics of Czech Academy of Sciences (Project partner)
  • University of Eastern Finland (Project partner)
  • University of Nottingham (Project partner)
  • University of Stuttgart (Project partner)
  • National Institute of Advanced Industrial Science and Technology (AIST) (Project partner)
  • Fudan University (Project partner)
  • Geomnia SAS (Project partner)
  • IBS Precision Engineering BV (Project partner)
  • Hong Kong Polytechnic University (Project partner)
  • Thales angénieux SA (Project partner)
  • TRIOPTICS GmbH (Project partner)
  • University of Brasília (Project partner)


  • EURAMET e.V.


  • aspherical lens
  • freeform optics