International Commission on Illumination

The International Commission on Illumination (usually abbreviated CIE for its French name, Commission internationale de l'éclairage) is the international authority on light, illumination, colour, and colour spaces. It was established in 1913 as a successor to the Commission Internationale de Photométrie, which was founded in 1900, and is today based in Vienna, Austria. The President from 2019 is Dr Peter Blattner from Switzerland.[1]

International Commission on Illumination
Commission internationale de l'éclairage
Formation1913; 107 years ago (1913)
Region served
Official language
English, French
Peter Blattner
WebsiteCIE Official website
The CIE 1931 colour space chromaticity diagram with wavelengths in nanometers. The colours depicted depend on the colour space of the device on which the image is viewed.


The CIE has six divisions, each of which establishes technical committees to carry out its program under the supervision of the division's director (depending):

Division 5 (Exterior Lighting and Other Applications) and Division 7 (General Aspects of Lighting) are inactive today.


  • In 1964 the 10° CIE standard observer and its corresponding colour matching functions as well as the new standard daylight illuminant D6500 were added, as well as a method for calculating daylight illuminants at correlated colour temperatures other than 6500 kelvins.
  • In 1976, the commission developed the CIELAB and CIELUV colour spaces, which are widely used today.
  • Based on CIELAB, colour difference formulas CIEDE94 and CIEDE2000 were recommended in the corresponding years.

See alsoEdit


  1. ^ CIE Board of Administration Archived 2016-04-16 at the Wayback Machine. Retrieved 07/07/2015.
  2. ^ Troland, L. T. (August 1922). "Report of Committee on Colorimetry for 1920–21". Journal of the Optical Society of America. 6 (6): 527–96. doi:10.1364/JOSA.6.000527. The report defined colour as follows: "Colour is the general name for all sensations arising from the activity of the retina of the eye and its attached nervous mechanisms, this activity being, in nearly every case in the normal individual, a specific response to radiant energy of certain wave-lengths and intensities."
  3. ^ Jones, L. A. (1943). "Historical background and evolution of the colorimetry report". Journal of the Optical Society of America. 33 (10): 534–43. doi:10.1364/JOSA.33.000534.

External linksEdit