The United States National Committee of the CIE (CIE-USNC) will host the 29th Quadrennial Session of the International Commission on Illumination (CIE), in Washington DC from the 14th to the 22nd of June 2019.  The Quadrennial Session is an important event, which brings together the international membership of the CIE, as well as other experts and stakeholders in the fields of light and lighting – vision and color, radiometry and photometry, lighting applications, photobiology and image technology. It offers an opportunity to meet colleagues from around the world, to share knowledge both theoretical and practical, and to contribute to the work of CIE Technical Committees.  Learn More

  • 14-16 June:  CIE General Assembly and Adminstrative Meetings
  • 17-19 June:  Technical Conference and Banquet
  • 20-22 June: CIE Technical Committee Meetings

The International Commission on Illumination (CIE: Commission Internationale de l’Eclairage) is devoted to international cooperation on all matters relating to the science and art of lighting, color perception, and digital color encoding.  It is a unique world-wide organization in matters of all phases of illuminating engineering, radiometry photometry and colorimetry.

Recognized by the International Organization for Standardization (ISO) and IEC as an international standardizing body of fundamental aspects of metrology evaluation and application of light and colour including other radiation aspects in the optical wavelength range.

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