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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.

Read the UNESCO proposal.

Read the SPIE press release about IDL.

Download the IDL Fact Sheet.

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Tag your posts: #IDL2018

Promote the International Day of Light

Download the Official Logo
Access SPIE IDL Resources

The SPIE International Day of Light Photo Contest

Results | The SPIE IDL Photo Contest

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

For more information about our annual contest and to see winners and submissions from our inaugural contest, visit the SPIE IDL Photo Contest page.

The 2018 contest will open on IDL 2018, 16 May 2018, and run until 16 September 2018.




Volunteers Needed

Help translate IDL promotional materials for global use.

Fill out our volunteer form, let us know what languages you speak fluently, and we will follow up with you.