Galvanometer scanner controls the mirror position to keep laser lights to irradiate to the surface of railway tracks constantly. The pulsed laser lights irradiate about 1,000 beams per second. Even reflected laser lights from railway tracks need to be put back to optical source through the mirror, the mirror is customized to a rectangle along the railway tracks.

This 100% customized galvanometer scanner structure including deformed mirror with high linearity is applied to this application.

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