The International Day of Light : a United Nations Program

16 May | The International Day of Light

16 May 2018 was the inaugural International Day of Light (IDL) – an annual, global initiative that provides a focal point for the continued appreciation of light. IDL aims to raise awareness of the critical role light-based technologies play in our lives, elevating science, technology, art, and culture to help achieve the goals of UNESCO – education, equality, and peace.

Learn more: Read the SPIE press release.

Read about preparations for IDL on the Photonics for a Better World blog.

See event photos from around the globe.

Share your celebrations!
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

Enter 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, to enter, and to see winners and submissions from our inaugural contest, visit the SPIE IDL Photo Contest page.

The 2018 contest opens on IDL 2018, 16 May 2018, and will 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.