6
2.2
Touch Screen Environment with Detailed Active Barrier
Block Diagram
The following diagram displays the detailed Active Barrier’s components in the Touch Screen environment.
Figure 2: Detailed Active Barrier in Touch Screen Environment
2.2.1
Active Barrier Components
The Active Barrier environment includes the following components:
Table 2: Active Barrier Components
Glass:
The glass is the substrate or surface for all optical components
Sensor Module
Sensor Module: The Sensor is a module featuring, high accuracy, high resolution and high
sensitivity. Each system includes four optical Sensors placed on the corners of the panel (In two
sensor systems, the sensors are placed on the top corners of the panel). These Sensors are
assembled on the glass
Rod
The Rod is an optical element that distributes the light uniformly. The Rod is inserted into the Rod
Holder
Rod Holder
The Rod Holder encases the Rod and protects the Rod from humidity, dust and particles. It is
assembled on the glass
Led Wire
The LED Wire is a cable that connects all IR LEDs
mounted on their
PCBs (LED PCBs). The wire is
connected to the PCB Controller. The number of LED PCBs depends on screen size and screen type
