International Day of Light 2018

Celebrate Light with OSA.

The Optical Society (OSA) supports the UNESCO endorsement of the International Day of Light on 16 May 2018 as a founding partner.

Experience optics and photonics in art at ARTECHOUSE from 16 May – 30 June.


Zero Point 2 by NONOTAK. The Gallery will feature Zero Point 1, a similar installation featuring fiber lasers from Versalume, a sponsor of the exhibition.

ARTECHOUSE, the first innovative art space dedicated to arts and technology, in partnership with the Optical Society (OSA), the American Physical Society (APS), and the American Institute of Physics (AIP) Venture Partnership Fund celebrates the inaugural International Day of Light with an innovative exhibition by an internationally acclaimed artist studio - NONOTAK. The exhibit will open at ARTECHOUSE, 1238 Maryland Ave SW, Washington, DC, USA on the International Day of Light – 16 May through 30 June 2018. Learn more and buy tickets at

Explore the universe on the day of light with Nobel Laureate John Mather.

CLEO will feature a special International Day of Light plenary session with Nobel Laureate John Mather and a live-streamed presentation of his talk "Exploring the universe at the speed of light." For more information, visit CLEO is co-sponsored by The Optical Society (OSA), IEEE Photonics Society and the American Physical Society (APS).

Celebrate by educating your community on optics and photonics.

Optics Suitcase

OSA and the OSA Foundation in partnership with the Rochester Local Section are supplying 150+ Optical Suitcases to 36 countries around the world with an estimated impact of over 10,000 students, parents, and teachers. With an estimated impact of over 10,000 students, parents, and teachers, these suitcases will be highlights in events at schools, colleges/universities, as well as museums such as the Baylor Mayborn Museum and organizations like NOKIA Bell Labs and Boeing REACH. Reach out to a chapter/section near you to see what they are planning for the International Day of Light.

Look back on the International Year of Light.


The International Day of Light began with the global celebration of the International Year of Light in 2015. Look back on how OSA celebrated.

Hear thoughts on the International Day of Light from OSA Members.

Hear from members on the value of the International Day of Light and look back on the International Year of Light.