C H A P T E R 2
Installing your projector
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3. Repeat the above steps to measure the flatness of the board vertically and diagonally.
I M P O R T A N T
The overall finger touch performance is strongly influenced by the projection surface flatness.
o
If the distance is less than 5 mm in all directions, optimal finger touch performance will
likely be achieved.
o
If the distance is between 5 mm and 10 mm in any direction, good to adequate finger
touch performance will likely be achieved.
o
If the distance is between 10 mm and 15 mm in any direction, it is possible to achieve
adequate finger touch performance. However, there could be issues completing the
installation. A flatter board surface is recommended.
o
If the distance is greater than 15 mm in any direction, select a flatter surface.
