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Scanner / Galvos

Scanner and Galvo systems are the part of a show laser light system, that creates patterns, graphics, texts, etc. by deflecting the one, single laser beam that comes from the laser sources. Whereas the laser sources provide the actual laser light, the scanners, or so called "Galvos" (Galvanometers) do the x and y deflection. As it is only one single beam that is deflected, this needs to happen extremely fast to make it look like one image for human eye. That's why the quality of the scanning system is in direct relation to the amount of flickering of the projection.
The scan speed of a scanner is usually given in kpps (kilo points per second), however other values give more detailed information on the quality of high end scanning systems.

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