Patent ID: 6493095
Filing Date: 2002-12-10
Classification: G01B,H04N

Abstract:
An optical 3D digitizer for digitizing an object, comprising:a white light source adapted to produce white light; a projection lens optically coupled to the white light source and arranged to project the white light toward the object whereby the object has a fully illuminated side; grating means optically coupled between the white light source and the projection lens, for controllably producing a fringe pattern in the light projected by the projection lens; and first and second cameras positioned aside from the projection lens and aligned in angled directions with respect to each other so that the cameras have complementary fields of view directed on the illuminated side of the object and partially overlapping with each other over a depth of measurement of the object, the cameras having respective video outputs to produce video signals representing complementary images of the object with a common image portion as a result of the fields of view being partially overlapping.