University of Pannonia, Faculty of Information Technology
Department of Electrical Engineering and Information Systems

Project Identifier: EU FP7-ICT-2009-5.
Duration: 01.07.2010 - 30.06.2013
Contacts: János Schanda, DSc, Professor Emeritus; Ferenc Szabó, PhD, Senior Lecturer

Project Partners

  • OSRAM GmbH - Germany
  • OSRAM Opto Semiconductors - Germany
  • Siemens - Germany
  • OSRAM SPA - Italy
  • ST Microelectronics - Italy
  • Lighting Presciptions Innovators - Spain
  • Regent Lighting - Switzerland
  • AALTO University - Finland
  • L-UP - France
  • University of Pannonia - Hungary


Development of high power, energy efficient LED light sources for home-, office- and shop lighting applications.

WP Structure of the Project

Our Task in the Project

  • Development of optimal LED spectral power distributions for home environment,
  • Leader of WP4 - Acceptance Studies


1st phase

  • Small scale experiments with tunable LED light sources. Visual experiments with small scale observation boxes.
  • Summary of light source colour quality metrics from international literature, investigation of optimized spectra for different colour quality metrics.
  • Selection of experimental spectra for 2nd phase, based on the results of small scale experiments.

2nd phase

  • Real size experimental rooms (laboratories)
  • Experiments with real size objects.


  • Real size experimental laboratory, which is first in Europe, second in the world.
  • Number of publications related to SSL4EU project: 13

3rd phase

  • Optimized light source spectra for shop lighting.
  • Evaluation of reflection spectra of textile samples.
  • Investigation of colour fidelity, colour preference, feeling of contrast.