Manual radarTOUCH Version 3.4
T. Schwirten LANG AG
14.10.10
Page 6
2. About the radarTOUCH
The radarTOUCH measurement device is a rotating laser scanner. The laser is a Class 1
Laser and not dangerous for the human eye. The laser works with a wavelength of 905nm. It
scans over 190° and does 528 distance measurements in ca. 40ms. The measurements are
based on the Time-of-Flight (TOF) method
.
Figure 8 Working range and angular resolution
The radarTOUCH can be installed above or below every surface. This surface can be for
example a display (LCD, PDP, OLED, …), a projection screen, an LED wall etc. The
radarTOUCH is also able to make surfaces interactive, which are usually never used, to
realise some computer – user interaction like the wall of a building or a car.
Furthermore, this system can be used completely detached from any surface giving the user
the possibility to interact “free in the air”, for example with gestures. Figure 9 shows how the
radarTOUCH could be used in front of a rear projection screen. Please note that the real
measurement resolution is a lot higher than in this model which is made to give you an idea
of how to use the device.
Figure 9 Using the radarTOUCH in front of a rear projection
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