![SPIE on Twitter: "Happy International Day of Light! #LightDay2021 Today we celebrate light & the critical role light-based technologies play in our lives & in achieving the goals of @UNESCO – education, SPIE on Twitter: "Happy International Day of Light! #LightDay2021 Today we celebrate light & the critical role light-based technologies play in our lives & in achieving the goals of @UNESCO – education,](https://pbs.twimg.com/media/E1hKYkWX0AQCCG2.jpg)
SPIE on Twitter: "Happy International Day of Light! #LightDay2021 Today we celebrate light & the critical role light-based technologies play in our lives & in achieving the goals of @UNESCO – education,
![Vector Graphic of International Day of Light Good for International Day of Light Celebration. Stock Vector - Illustration of international, light: 215497738 Vector Graphic of International Day of Light Good for International Day of Light Celebration. Stock Vector - Illustration of international, light: 215497738](https://thumbs.dreamstime.com/b/vector-graphic-international-day-light-good-international-day-light-celebration-flat-design-flyer-design-flat-215497738.jpg)
Vector Graphic of International Day of Light Good for International Day of Light Celebration. Stock Vector - Illustration of international, light: 215497738
![UNESCO PROCLAIMS MAY 16TH AS THE INTERNATIONAL DAY OF LIGHT - The Daylight Site | Daylighting research, architecture, practice and education The Daylight Site UNESCO PROCLAIMS MAY 16TH AS THE INTERNATIONAL DAY OF LIGHT - The Daylight Site | Daylighting research, architecture, practice and education The Daylight Site](http://thedaylightsite.com/wp-content/uploads/2017/12/unesco.jpg)
UNESCO PROCLAIMS MAY 16TH AS THE INTERNATIONAL DAY OF LIGHT - The Daylight Site | Daylighting research, architecture, practice and education The Daylight Site
![International Day of Light 2021: Know Date, History And Significance About the Day to Mark First Successful Operation of Laser by Theodore Maiman | 🙏🏻 LatestLY International Day of Light 2021: Know Date, History And Significance About the Day to Mark First Successful Operation of Laser by Theodore Maiman | 🙏🏻 LatestLY](https://st1.latestly.com/wp-content/uploads/2020/05/Untitled-design-2020-05-15T154259.848.jpg)