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International Day of Light : a United Nations Program

16 May | The International Day of Light

The International Day of Light (IDL) will provide an annual focal point for the continued appreciation of the central role that light plays in the lives of the citizens of the world in areas of science, culture and art, education, sustainable development, and in fields as diverse as medicine, communications and energy.

IDL Resources

Download the Official Logo
Read the UNESCO Proposal

Announcing the SPIE International Day of Light Photo Contest

Get Details | The SPIE IDL Photo Contest

The first SPIE Annual International Day of Light Photo Contest launches 15 May to raise awareness about IDL and the vital role that light and light-based technologies play in daily life.