| 摘要 |
A two-dimensional optical scanning system two fine-optical deflectors for a stepwise and fine deflection of a laser beam in two directions perpendicular to each other, whereby a fine scan zone can be stepwise scanned by the laser beam at a fine deflection distance. The optical scanning system also may have two coarse-optical deflectors for a stepwise and coarse deflection of the laser beam, whereby a coarse scan area can be scanned by the laser beam, the fine scan zone being encompassed by the coarse scan area at a coarse deflection distance, the fine zone being encompassed by the coarse scan area.
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