CYLINDER TYPE BEAM GENERATOR AND CYLINDER TYPE BEAM GENERATING METHOD

摘要

A cylindrical beam generator and a cylindrical beam generation method are provided to get three dimensional information accurately by scanning the light on the surface. A cylindrical beam generator comprises a beam generator(201) for scanning the laser beam; a filter(202) which is arranged in one side of the beam generation, and transmits the light coming from the beam generation to the original shape; and lens(203) which is separated from the filter.