Tech Article 2/11

At the University of Groningen, students have created a 33 foot-long touchscreen. This touchscreen has the capability of over 100 points of possible contact, simultaneously. The students needed to convert a 3-millimeter dark acrylic screen panel into a touch screen by back lighting it with six HD projectors.  To create the touch sensitivity they used six Optitrack cameras, 16 inexpensive infrared emitters, and 1,000 LEDs. They used this screen for teaching math and computer science students interactivity. The video below shows the touchscreen in action.