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.
The 2022 SPIE IDL Photo Contest will launch on 16 May as part of the celebration. Submit your prize winning photos for cash prizes.
New this year is the SPIE Student Member IDL Video Contest. Check out the details here on 16 May.
Celebrate IDL Year-round
Decorate your social media platforms
Get IDL virtual backgrounds for your Zoom meetings
Add IDL wallpapers to your computer or smartphone
Tag your images #LightDay2022 #IDL2022