These are virtual keyboards that can be projected and touched on any surface. The keyboard watches your fingers move and translates that action into keystrokes in the device. Most systems can also function as a virtual mouse.
A holographic element illuminated by a red diode laser produces
a template of the keyboard.
An infrared plane of invisible light is generated just above and
parallel to the surface of the keyboard.When a key is touched
light is reflected from this plane and directed towards the
Reflected light from the illumination module is passed through an
infrared filter and imaged on to a sensor chip which determines
the location of the light.It can process and interpret several
The device detects movement when fingers are pressed down. Those
movements are measured and the device accurately determines the
intended keystrokes.Once the keystroke has been decoded, it is
sent to the portable device via wireless.
For the first time mobile device Users can actually type normally on this virtual keyboard (VKB), enabling them to work quickly and effectively, taking the pain and frustration out of existing minuscule keyboards and handwriting recognition software.
Lumio was initially well known for developing and licensing the 1st virtual laser keyboard (The VKB). Introduced first as a prototype at CeBIT with Siemens, the product was launched in early 2005 with Bluetooth and was recently voted "Best Innovation" 2007 at the Consumer Electronics Show (CES).