Patent ID: 7566894
Filing Date: 2009-07-28
Classification: G01B,G01N

Abstract:
1. A device for the quantified evaluation of a curved surface, comprising: a housing; first radiation means which is arranged in a first predetermined angle with respect to the curved surface to be analyzed and directing non-collimated radiation onto the curved surface to be analyzed, said first radiation means being configured to emit light in the spectrum of infrared light; at least one second radiation means directing radiation onto the curved surface to be analyzed and configured to emit light in the spectrum of visible light; and a detection means arranged in a second predetermined angle with respect to the curved surface to be analyzed detecting the radiation irradiated onto the curved surface and reflected back from it and analyzing light intensities associated with the reflected radiation, said first radiation means and said detection means being positioned in said housing; wherein said device is moveable in a predetermined direction along, and in the direction of the curved surface to be analyzed; wherein said detection means includes a plurality of detectors each being arranged in a straight line oriented substantially perpendicular to said predetermined direction, and a plurality of substantially congeneric detectors being arranged along one of said straight lines, said congeneric detectors having similar sensitivities with respect to detecting said radiation, such that a curvature characteristic of the curved surface is obtained by analyzing the light intensities detected by said detection means moving in said predetermined direction, the detected light intensities varying in direction with the curvature characteristic of the analyzed surface.