Los Angeles artist Leif Maginnis makes interactive kinetic light art. His works combine geometry and light and the zoetrope effect. From the artist's site:
The electronic light art that he makes is interactive and can be manipulated with buttons and knobs.
Each viewer creates their own unique visual experience. “To me, observing the spectator’s process of discovery can be quite rewarding as a seemingly limitless number of hypnotic and mandala-like patterns are produced by the various settings.” Captivated by the visual illusion, spectators find themselves stimulated and lost in time when interacting with the installation.
Read more about Maginnis' technique at his blog. -Thanks, Leif!