May 16 (Thu), 2019
2nd International Day of Light
May 16 (Mon), 1960 – Mankind’s first coherent light was emitted from ruby laser invented by Theodore Harold Maiman of Hughes Laboratory in Malibu, California
Theodore Maiman and the Laser
International Day of Light – UNESCO
UNESCO Proclaimed May 16th as the International Day of Light
Japan Node
Flyer
![](https://ieee-jp.org/section/kansai/chapter/pho/wp/wp-content/uploads/2019/04/IDL.png)