METHOD AND DEVICE FOR DEFECT INSPECTION IN SEPARATED TRANSPARENT AND/OR SEMI-TRANSPARENT BODY

摘要

An apparatus and a method for detecting a defect of a separated low rigidity transparent or translucent body, wherein an image acquiring device includes: a first conveyer and a second conveyer to convey a separated low rigidity transparent or translucent body; a transparent bridge disposed between a first conveyer and a second conveyer along a transport path of the separated low rigidity transparent or translucent body, the transparent bridge having a top surface; an illuminating unit disposed on one side of the transparent bridge and configured to project diffusive light onto the top surface of the transparent bridge by transmitting through the transparent bridge; and an image pickup unit disposed on the other side of the transparent bridge and configured to receive light projected from the illuminating unit and transmitting through the separated low rigidity transparent or translucent body to form an image when the separated low rigidity transparent or translucent body enters the top surface of the transparent bridge. With the apparatus and the method, it is possible to detect a defect of the separated low rigidity transparent or translucent body.