METHOD FOR TESTING END FACE OF GLASS SHEET AND DEVICE FOR TESTING END FACE OF GLASS SHEET

摘要

In the present invention, a light source (22) and an image pick-up camera (23) are disposed above and below a glass sheet (G) so as to sandwich the glass sheet in the thickness direction. Radiated light from the light source (22) enters the glass sheet (G) from a bottom surface (Gb) of the glass sheet (G), is incident on a end face (Ga), is internally reflected at the end face (Ga), exits from a top surface (Gc) of the glass sheet (G), and is captured by the image pick-up camera (23).