APPARATUS AND METHOD FOR INSPECTING GLASS SHEETS

摘要

A pair of bent glass sheets (28, 29) are supported along a peripheral edge portion (26) in a nesting fixture (20) below a gap detector (21) for detecting ''good'' and ''bad'' nested pairs of glass sheets. The gap detector includes a laser beam source (34) for directing a light beam (35) at an outer surface of the nested sheets in a line generally perpendicular to a longitudinal axis of the sheets. A reflected beam (39) from the surface of the sheets is sensed by a row of cameras (43) which generate an image of the contours of the sheets. The image is compared with predetermined limits to detect unacceptable gaps between the sheets or unacceptable contour deviations.