picture 1 picture 2 picture 3
From the example on the previous page we can also determine how many points this scanning
system is able to project if the scanning angle is not more than 8 degrees:
35.000 points / 35 Frames Per Second = 1.000 pps. This is the absolute maximum of how many
points we should be using when programming an effect if the scanning angle is not more than 8
degrees.
In pictures 1. to 3. you can see the same star effect scanned at different scan rates at full scanning
angle (60 degrees).
Pict. 1: the scan rate and/or number of points is too low. The corner points are more visible than the
lines in between them and the whole effect is flickering. The scan-rate and/or number of points
needs increasing.
Pict. 2: the scan-rate and/or number of points is about right. The whole effect has more or less the
same intensity and does not flicker.
Pict. 3: if you increase the scan-rate or number of points further the effect starts to distort resulting
in rounded corners and noisy scanners. This indicates that you are exceeding the maximal scan-
rate of the scanning system! If you operate the scanning system at scan-rates higher than the
maximum scan-rate of the scanning system the scanners will get damaged irreversibly due to
overheated coils damaging rotor magnets.
Page 6
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