Patent ID: 6181424
Filing Date: 2001-01-30
Classification: G01B

Abstract:
A three-dimensional measurement apparatus for measuring three-dimensional information of an object based on a light-section method, which utilizes irradiation of a light stripe on the object, the apparatus comprising:a laser light source;a laser light collimator adapted to collimate laser light emitted from said laser light source;a collimated laser light stripe projection unit adapted to receive collimated laser light and to project the light stripe on the object;a mover adapted to move said projection unit parallel to an optical axis of said collimated light, whereby the light stripe projected by said projection unit on the object is movable in a direction perpendicular to a longitudinal direction of the light stripe; andan image capture device adapted to capture images of the object viewed at a given angle with a projected light axis, the object scanned with the movement of the light stripe, whereby three-dimensional information of the object is obtained from said images, said image capture device substantially fixed with respect to the object.