May 16 of every year is set aside to CIE is pleased to participate in the Steering Committee of the IDL and to  promote the  understanding and awarness of how Light is of fundamental importance in our daily life, our environment, in fact the Universe itself.

This importance is well expressed in this message from Ms Audrey Azoulay, Director General of UNESCO, on the occassion of this year's International Day of Light.

CIE 2019 individual conference papers to be Open Access
Conference Registration - standard registration now open
Accommodation at Conference Hotel
Overview of Workshops and Seminars
Division and TC Meetings Timetable
 

With strong technical, scientific and cultural foundations, the CIE is an independent, non-profit organization that serves member countries on a voluntary basis.

Since its inception in 1913, the CIE has become a professional organization and has been accepted as representing the best authority on the subject and as such is recognized by ISO as an international standardization body.