Method for adjusting drive characteristics of scanner driver of galvanometric scanner

摘要

A scanner driver of a galvanometric scanner system includes an analog drive circuit; a control unit 31 for storing and holding optimized data formed from combinations of optimal values of circuit constants set in advance in accordance with a plurality of drive modes of a galvanometric scanner; and an electronic trimmer for changing the circuit constants of the analog drive circuit. The control unit selects one of the optimized data in accordance with an external input, and sets or updates parameters of the circuit constants via the electronic trimmer in accordance with the selected optimized data. When a drive mode of the galvanometric scanner system is changed, the scanner driver can accordingly be optimized readily and quickly.