Method and system for two-dimensional and three-dimensional inspection of a workpiece

摘要

A system and method for inspecting a workpiece are provided. According to one embodiment, the system includes a plurality of illumination sources positioned proximate to the workpiece and each operable to generate at least one respective illumination beam to illuminate at least a portion of the workpiece, wherein each beam has a different respective color. The system also includes at least one camera positioned proximate to the workpiece and operable to capture at least one image of at least a portion of the workpiece including the illumination beams incident thereon. In addition, the system includes a data system capable of providing simultaneous two-dimensional and three-dimensional information indicative of the workpiece based on the image acquired by the camera.

主权项

1. An inspection system for inspecting a moving workpiece, the system comprising:
a plurality of illumination sources positioned proximate to the workpiece and each operable to illuminate at least a portion of the workpiece with at least one respective illumination beam, each illumination beam having a different respective color; at least one camera positioned proximate to the workpiece and operable to capture at least one image of at least a portion of the workpiece illuminated by the illumination beams; and a data system capable of providing information indicative of the workpiece based on the image acquired by the camera; wherein the plurality of illumination sources includes at least one LED array; wherein the plurality of illumination sources further comprises at least one laser fan beam generator; wherein the at least one laser fan beam generator is arranged to generate a laser beam at an oblique incidence angle, and thereby produce a line of laser light on the workpiece, the line being generally perpendicular to a direction of motion of the workpiece, and the at least one LED array is arranged to generate a light wash on the surface of the moving workpiece; and wherein the said information is two-dimensional and three-dimensional information, the two-dimensional information resulting from the illumination of the workpiece by the light wash, and the three-dimensional information resulting from the illumination of the workpiece by the laser fan beam.