Latest Publications
This International Standard defines spectral sensitivity functions, quantities and metrics to describe the ability of optical radiation to stimulate each of the five photoreceptor types that can contribute, via the melanopsin-containing intrinsically-photosensitive retinal ganglion cells (ipRGCs),... more
This Technical Report has been prepared by CIE Technical Committee 1-85 of Division 1 "Colour and Vision” and has been approved by the Board of Administration as well as by Division 1 of the Commission Internationale de l'Eclairage. This publication provides the recommendations of the CIE... more
CIE 198-SP2:2018 Determination of Measurement Uncertainties in Photometry Supplement 2: Spectral measurements and derivative quantities
This report is a second supplement to CIE 198:2011 Determination of Measurement Uncertainties in Photometry for the determination of measurement uncertainties associated with the values of selected quantities in photometry. It deals with spectral measurements and combinations of measured spectral... more
The objective of this report is to lay the groundwork for developing a recommendation on the measurement of effective intensity of flashing lights used for signalling applications. It recommends a convolutional method that will rest on some defined visual impulse response function to calculate the... more
Latest News and Events
This CIE Tutorial has been developed to support the understanding and proper application of CIE S 026....
CIE NC Australia will hold a lighting research conference in February 2019. The deadline for abstract...
The CIE Joint Technical Committee JTC 12 (D1/D2/D8) “The measurement of sparkle and graininess” is...
CIE Calls for Experts to its new TCs:
TC 2-92 International Standard Format for the Electronic Transfer...