International Day of Light resources

Free IDL logos, social media assets, and digital downloads

Celebrate the International Day of Light

Welcome to our IDL resource page. Here you'll find free downloads, including the official IDL logo, digital wallpapers, and social media assets properly sized and ready to use!

Download the official IDL logo, created by SPIE

Download social media assets and celebrate IDL

In This Section:

Show your support for IDL!

Enjoy these free digital downloads, sized and ready to post on your social media platforms and screens. Created by SPIE.

Facebook Cover Photos

Preview your options below. View the full-size images by clicking on the gallery and download the cover photos here.

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LinkedIn Profile Banners

Preview your options below. View the full-size images by clicking on the gallery and download the banner photos here.

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Twitter Header Photos

Preview your options below. View the full-size images by clicking on the gallery and download the header photos here.

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Zoom Virtual Backgrounds

Preview your options below. View the full-size images by clicking on the gallery and download the meeting background photos here.

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Mobile Wallpapers

Preview your options below. View the full-size images by clicking on the gallery and download wallpapers for your smartphone here.

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Desktop Wallpapers

Preview your options below. View the full-size images by clicking on the gallery and download wallpapers for your desktop computer here.

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Download and print annual IDL posters

Video Lessons on our YouTube channel

Polarized Light Art with video instruction in English, French, and Spanish 

How to Make a Pinhole Viewer with Everyday Household Items with video instruction in English, French, and Spanish

Download lesson plans

With the help of our SPIE Student Chapters and other volunteers, lesson plans have been translated into other languages.