Patent ID: 6219585
Filing Date: 2001-04-17
Classification: G01B

Abstract:
A scanning system for determining dimensions and shape of an object, comprising:means for projecting at least one line onto a scanning area, said line extending in a first direction;means for projecting at least one line onto a scanning area, said line extending in a first direction;means for moving the object, in a second direction which is perpendicular to the first direction, into the scanning area;means for detecting an image formed on a surface of said object which is formed by said line; andmeans for monitoring a position of the object;wherein said detecting means includes:first means for detecting respective positions of the object from said monitoring means, when said image first appears on the object, at each of a plurality of predetermined points along the object as the object is moved into the scanning area by said moving means; andsecond means for detecting a straightness of the image when the image extends along an entire length of the object after the object has been moved into the scanning area.