Au Hikari is a Japanese internet and telephone provider who invented this Rube Goldberg machine (named after American cartoonist and inventor Rube Goldberg) to demonstrate the power of optical reactions to its customers. Rube Goldberg contraption works mainly with focused beam of light, magnifying glasses, mirrors and prisms at the speed of light and uses them to activate its various mechanisms.
In this video you will see nice demostrations of optic power which was made as an advertisement for optical internet service au Hikari.
The Making Of Power of Optics By Au Hikari
This video is about the making of the power of optics.