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

If you're looking for more background material on the CIE, its purpose, its structure (including the...
Anders Thorseth (DK), Chair of CIE TC 2-97 is looking for members to participate in this newly formed...
The Divisions have several tutorials in the pipeline, some to be held this year and some in 2023, some...
  This CIE Technical Committee (TC) is chaired by Martine Knoop (DE). The aim of this TC is to review...