A 3D screen--without the goggles
New display on show at CeBit is meant to help architects and engineers visualize their designs. Photos: Goggle-free 3D
The display is meant to help architects and engineers visualize their designs and to make flight simulators more realistic. Doctors at the German University of Tuebingen have used it to train for minimally invasive surgery.
The screen, developed by the Fraunhofer Institute for Telecommunications and displayed at the annual CeBit technology fair in the German city of Hannover on Thursday, generates two slightly different images to make objects appear three dimensional.
A lens in front of the display directs one beam of light toward the left eye of the viewer and a second beam toward the right, making 3D goggles unnecessary.
If the viewer moves to the side, a camera at the top of the display registers the movement and adjusts the lens.
The Berlin-based Fraunhofer Institute also is displaying a "3D kiosk" that uses the display, intended for high-tech showrooms.
The screen is mounted on a table that has cameras and infrared sensors hidden below the surface. The sensors pick up on gestures, allowing the viewer to skip through images or rotate a three-dimensional object by pointing and moving the hand.
Consumer electronics companies Philips from the Netherlands and Sharp from Japan are also developing 3D displays that do not require special glasses. But because they do not yet track the viewer's movements, they require a viewer to choose the best position and remain there.
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