FREE Multimedia DVD’s for Educators. If you are a teacher you can request FREE DVD’s from SPIE the international society for optics and photonics {Photonics, the science and technology of generating, controlling and detecting light particles (photons). These videos are aimed at variety of audience ages 3rd grade to high school. Select from titles like A Day without Photonics – a modern horror story; Light in Action: Lasers, Cameras & Other Cool Stuff; Optics: Light at Work. To request a FREE copy of these titles just send an email request to [email protected].