Solid-state emitter-based lighting (LED type) is considered to be twice as efficient as that produced by conventional incandescent lamps. The generalisation of their use requires the development of metrological methods and instrumentation in order to characterise their performance in an univocal manner.


Improve the qualification of LED (light-emitting diode) lighting: evaluate colour rendering metrics applied to LED-based lighting

Better qualify LED lighting: develop a basic model for predicting the visual comfort of LED lighting.


Find here the detailled description of the project:

Publications and communications

RENOUX D., NONNE J. and SABOL D., “Contribution to the assessment and the improvement of colour rendering metrics of artificial light sources”, CIE 2012 – Lighting Quality and Energy Efficiency, Hangzhou, China, September 19th 2012.

ROSSI L, SIRAGUSA S., NONNE J. and RENOUX D., “Correlating eye movements with indoor visual comfort perception under artificial lighting”, 17th European Conference on Eyes Movements (ECEM), Lund, Sweden, August 11th-16th 2013.

NONNE J., RENOUX D. and ROSSI L., « Metrologie pour les éclairages à état solide », 16e Congrès International de Métrologie, Paris, France, October 7th-10th 2013, DOI: 10.1051/METROLOGY/201314004.

BAUMGARTNER H., RENOUX D., VASKURI A., PULLI T., POIKONEN T., KÄRHÄ P. and IKONEN E., “Lifetime projection of LED light sources”, Proceedings of the Finnish Physics Days, 2013, 10.18.


  • INRIM (Italy) : hosting a scientist (February-March-April 2012) to work on colour rendering.
  • SMU (Slovakia) : hosting a scientist (August-September-October 2012) to work on visual comfort metrics.
  • Mitsubishi Chemical : use of this company's LEDs and exchange on the results.

JRP-ENG05 partners :

  • VSL (Netherlands),
  • Aalto (Finland),
  • CMI (Czech Republic),
  • CSIC (Spain),
  • EJPD (Switzerland),
  • INRIM (Italy),
  • IPQ (Portugal),
  • LNE (France),
  • MKEH (Hungary),
  • NPL (United Kingdom),
  • PTB (Germany),
  • SMU (Slovakia),
  • SP (Sweden),
  • Trescal (Denmark),
  • CCR (Italy),
  • TU-IL (Germany),
  • UPS (France).