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.

International Commission on Illumination
Commission internationale de l'éclairage
AbbreviationCIE
Formation1913; 108 years ago (1913)
TypeINGO
Location
Region served
Worldwide
Official language
English, French
President
Peter Blattner
Switzerland
WebsiteCIE Official website
The CIE 1931 colour space chromaticity diagram with wavelengths in nanometers. The colors depicted depend on the color space of the device on which the image is viewed.

OrganizationEdit

The CIE has six active divisions,[1] each of which establishes technical committees[2] to carry out its program:

  • Division 1: Vision and Colour
  • Division 2: Physical Measurement of Light and Radiation
  • Division 3: Interior Environment and Lighting Design
  • Division 4: Transportation and Exterior Applications
  • Division 6: Photobiology and Photochemistry
  • Division 8: Image Technology

Two divisions are no longer active:[citation needed]

  • Division 5: Exterior Lighting and Other Applications
  • Division 7: General Aspects of Lighting

The President of the CIE from 2019 is Dr Peter Blattner from Switzerland.[3]

MilestonesEdit

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

See alsoEdit

ReferencesEdit

  1. ^ "Divisions". Retrieved 14 October 2021.
  2. ^ "Technical Committees". Retrieved 14 October 2021.
  3. ^ CIE Board of Administration Archived 2016-04-16 at the Wayback Machine. Retrieved 07/07/2015.
  4. ^ 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: "Color 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."
  5. ^ 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