CTX Virtual Technologies VK200 KEYFOB - Identifying Device Components and Functions; Projector Component; Sensor Component; IR Light Window Component

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FUNCTION IS INCORRECT
If one or more of the above modules are blocked
by some cause, the projected keyboard image
may not be displayed correctly or, the location
and movement of the typist’s ngers may not be
recognized correctly. Use only a completely at
surface.
4. IDENTIFYING PARTS AND
THEIR FUNCTIONS.
1. Projector: Uses a red laser to project the image of a
keyboard onto a at surface in front of the typist.
2. Sensor: Picks up the infrared light reected off the
typist’s ngers and triangulates the location of the
reected light to determine which key was pressed.
This sensor provides a keyboard function.
3. IR Light Window: Uses an infrared laser to emit an
invisible plane of light a few millimeters above the
projection surface so that the infrared light can be
reected off of the typist’s ngers to the sensor.