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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.

The winners of the 2020 SPIE IDL Photo Contest have been announced!

See the winning images  ›

Support IDL and display images from the photo contest on your social media pages, online meetings, computers and smartphones!
Learn more.

Celebrate IDL Yearound

Decorate your social media platforms

Get IDL virtual backgrounds for your Zoom meetings

Add IDL wallpapers to your computer or smartphone

View the #SeeTheLight IDL Video and 60 Years of Laser Innovation

Play the See The Light Video
Learn more about the 60th Anniversary of the Laser

Promote the International Day of Light

Download the Official Logo
Access SPIE IDL Resources

The SPIE International Day of Light Photo Contest

See the winning images

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.

Amateur and professional photographers alike submit photos for a chance to win US$2,500.

See the winning images of our 2020 contest, including those from our new Youth Category.

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.