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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