The International Day of Light : a United Nations Program

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.

Celebrate IDL2020 Online

Play virtual IDL Bingo for a chance to win $500

Decorate your social media platforms

Get IDL virtual backgrounds for your Zoom meetings

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

Learn more about the 60th Anniversary of the Laser

Promote the International Day of Light

The SPIE International Day of Light Photo Contest

Learn more about 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.

Amateur and professional photographers alike can submit photos before 16 September for a chance to win US$2,500.

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.