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The International Day of Light : a United Nations Program

16 May | The International Day of Light

The International Day of Light (IDL) is 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.

View event photos from 2019 celebrations around the globe.

See the winners of the 2019 SPIE IDL Photo Contest.

Special Collaborations in 2020

The 60th Anniversary of the Laser
Learn more about this IDL initiative

Promote the International Day of Light

Download the Official Logo
Access SPIE IDL Resources

The SPIE International Day of Light Photo Contest

See the Winners of the 2019 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.

See the winners of the 2019 contest!

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