Latest Publications

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
This supplement to CIE S 025:2015 Test Method for LED Lamps, LED Luminaires and LED Modules specifies the requirements for measurement of electrical, photometric, and colorimetric quantities of OLED luminaires and OLED light sources. These sources were not covered by CIE S 025:2015 even though they... more
LED modules and light engines represent a wide range of very different products with unique physical properties. Thus, they can neither be treated as single LED packages (where measurements refer to a specific junction temperature of a single LED or the average of a single die, multiple-junction... more
  For download: CIE Position Statement on Non-Visual Effects of Light - Recommending Proper Light at the Proper Time, 2nd Edition, October 2019   October 3, 2019   Background Light is defined as any electromagnetic radiation that can create a visual sensation by directly stimulating the retinal... more

Latest News and Events

The National Committe for Lighting in Bulgaria (NKO) is proud to announce their upcoming event ......
CIE NC Australia Inc. is proud to announce that their Lighting Research Conference 2020 will be held on...
New Partnership Agreement between the CIE and the ISO Signed In December 1986 the International...
All individual paper prepared and submitted for the conference of the 29th Session of the CIE,...