Latest Publications

  This Technical Report provides basic measurement principles and practical guidance on spectroradiometry of optical radiation sources in the ultraviolet, visible and near‑infrared regions of the electromagnetic spectrum in the wavelength range from 200 nm to 2 500 nm. The document primarily deals... more
  The fast rate at which solid-state light sources can change their luminous output is one of the main drivers behind the revolution in the lighting industry and applications of lighting. The fast rate of the intensity change means that a modulation of the luminous output, both intended and... more
  A colour appearance model provides a viewing-condition-specific method for the transformation of the tristimulus values, X, Y, Z, to or from perceptual attribute correlates.This publication describes a specific colour appearance model, CIECAM16, which may be useful for colour management systems,... more
  There are several terms which describe the Planckian radiation temperature for light sources, including radiance temperature, colour temperature, correlated colour temperature, distribution temperature and ratio temperature. This document provides descriptions of these terms, information on their... more

Latest News and Events

  The lighting associations of Germany (LiTG), Austria (LTG), the Netherlands (Nsvv) and Switzerland (...
  Light + Building Autumn Edition will be held in Frankfurt am Main from 2 to 6 October 2022. The...
CIE NC Greece, the Hellenic Illumination Committee (HIC) is staging the 9th International Lighting...
  This new CIE Division 3 Technical Committee is in the process of activation.  CIE TC 3-61 will...