Sticky Light: interacting with a beam of pure light
A laser spot bounces on a figure being drawn on paper, trying to escape the labyrinth of lines. There is no camera nor projector; Sticky Light proposes an experience where the audience can touch and interact with a beam of pure light - and even play a pong game with bare hands. The quality of the laser light, and the fluidity of the motion makes for a very unique experience. The piece is based upon a 3d tracking technology developed in our lab in 2003, using a laser diode, a pair of steering mirrors, and a single non-imaging photodetector called the "smart laser scanner" (for details, see here). The hardware is very unique: since there is no camera nor projector (with pixellated sensors or light sources), tracking as well as motion can be extremely smooth and fluid. (The laser power is less than half a milliwatt - half the power of a not very powerful laser pointer - and does not supposes any hazard). When alone, the laser dot perform enlarging spirals until it finds some objet of interest with which to play (fingers, hands, drawings, etc). A dialog then establishes naturally between the user and the spot of light - whose wanderings seems always playful and purposeful.
From the point of view of HCI research, this system (which is now being miniaturized using MEMS micromirrors) will certainly find a number of applications in domains as varied as design and advertisement, augmented/live architecture, entertainment, human computer interfaces, ubiquitous, (and in the near future) wearable displays capable of interacting with their immediate surrounding.
- Video demo (as exhibited in Ars Electronica Campus Exhibition, Linz 2008): Low quality [WMV, 26MB] / High Quality [WMV, 100MB]
- Augmenting Ars Electronica Logo [WMV, 16MB]
- Alvaro Cassinelli, Yusaku Kuribara, Stephane Perrin and Masatoshi Ishikawa, Sticky Light showcased at Ars Electronica - Tokyo University Campus Exhibition(HYBRID EGO), Linz, Austria, 4-9 Sept. (2008). Ref: Campus Exhibition catalog [PDF-4MB].
- Check a more complete page here: http://www.k2.t.u-tokyo.ac.jp/perception/StickyLight/StickyLight.html