Patent ID: 7433023
Filing Date: 2008-10-07
Classification: G01B,G01C

Abstract:
1. An optical measurement device for determining at least one coordinate of a measurement location on a surface of a workpiece positioned in a known coordinate system by a workpiece support, the optical measurement device comprising: a source of a plurality of measurement beams; means for directing the plurality of measurement beams to concurrently impinge upon a surface of a workpiece to illuminate a plurality of independent predetermined measurement locations on the surface of the workpiece when the workpiece is supported and positioned by a workpiece support, said means for directing the plurality of measurement beams also providing for the adjustable directing of at least one of the measurement beams so that at least one measurement location can be movably positioned on the surface of a workpiece as supported in position by the workpiece support; and an imaging system comprising a detector that can view at least one of the plurality of illuminated measurement locations along a predetermined viewing direction; wherein the detector can be setup to provide information indicative of at least one coordinate of the at least one of the plurality of illuminated measurement locations as viewed by the imaging system along the predetermined viewing direction.