Welcome to CIE 2023

It is our pleasure to invite you to the 30th Quadrennial Session of the CIE, which is hosted by the CIE National Committee of Slovenia, in Ljubljana.

The 30th Quadrennial Session also includes the conference CIE 2023, which runs from September 18 to 20, 2023. This three day conference brings together the CIE community and its stakeholders together to advance the science of light and lighting and the technical and organizational work of the CIE.

With strong technical and scientific foundations, the CIE is an independent, non-profit organization that serves its member countries and the global community. Originally formed in 1900 as the International Commission on Photometry (CIP), and restructured as the CIE in 1913, the Commission is globally accepted as representing the best authority on all aspects of light and lighting. The CIE is recognized by the International Commission for Weights and Measures (CIPM), the International Standardization Organization (ISO) and the International Electrotechnical Commission (IEC) as an international standardization body.

The broad theme of the CIE 2023 conference is "Innovative Lighting Technologies".  We especially invite abstract submissions for the conference on:

  • Smart lighting
  • Sustainable and resilient lighting technologies and practices;
  • Integrative lighting for outdoors and indoors;
  • Metrology for new technologies; and
  • Image display in augmented and virtual reality modes.
Of course, we also invite submission on topics related to all of the CIE Divisions: Vision and Colour; Physical Measurement of Light and Radiation; Interior Environment and Lighting Design; Transportation and Exterior Applications; Photobiology and Photochemistry; and, Image Technology.

The conference presents the perfect opportunity for all interested in the arts and sciences of light and lighting, from science, engineering, design and industry, to come together to discuss their interests with like-minded professionals from the global lighting community.

Our host city Ljubljana, the capital of Slovenia is a dynamic Central European city lying in the broad basin between the Alps and the Adriatic Sea. Although Ljubljana is one of the youngest capital cities in the European Union, it nevertheless reveals a long history and a real wealth of cultural and artistic monuments.

We look forward to welcoming you to Slovenia and seeing you at the 30th Quadrennial Session of the CIE.




    Peter Blattner                                                        Grega Bizjak
      CIE President                                             CIE NC Slovenia President