The
International Commission on Illumination (usually abbreviated
CIE for its French name,
Commission internationale de l'éclairage) is the international authority on
light,
illumination,
colour, and
colour spaces. It was established in 1913 as a successor to the Commission Internationale de Photométrie and is today based in
Vienna, Austria. The President from 2015 is Yoshihiro Ohno from the US.