Latest Publications

The Proceedings of the 29th Session of the CIE comprise two volumes. Volume 1 includes the papers of the three-day technical conference having taken place in the course of the Session (June 17–19, 2019). It is subdivided into two parts and contains, beside general information regarding CIE, on 1858... more
This Technical Report gives recommendations for the characterization, selection and application of optical radiation detectors to perform linear measurement conditions. It helps the users to find the causes of non-linear behaviour and to avoid non-linear operation. It discusses detector operating... more
This report concerns lighting for roads where pedestrians are the primary road user. Lighting guides recommend certain criteria for design such as target illuminances. The bases of these recommendations are, however, largely unstated or were not published in international magazines and got lost.... more
Many regional standards and regulations require a manufacturer of directional light sources to publish the beam angle (or beam angles for non-symmetrical sources) and centre beam luminous intensity of their products as well as derived data such as the useful luminous flux or zonal lumen values.... more

Latest News and Events

The National Committe for Lighting in Bulgaria (NKO) is proud to announce their upcoming event ......
  The Lichttechnische Gesellschaft Österreichs (LTG), also CIE NC Austria, is proud to announce their...
  Come visit us at the L + B 2020 Expo at Messe Frankfurt. You can find us in Hall 3.1 FOY 1. We look...