METHOD AND DEVICE FOR INSPECTING FLAW OF GLASS ARTICLE

摘要

PROBLEM TO BE SOLVED: To accurately inspect the presence of the flaw ranging over the whole periphery of a cylindrical or columnar glass article and to certainly shorten an inspection time by dispensing with the rotation of the glass article centering around its axis at the time of inspection of the flaw. SOLUTION: A glass pipe 2 is irradiated with line light 3 from a floodlight projection part 4 so as to traverse the glass pipe 2, the reflected light from it out of the irradiated line light 3 is received by a light receiving part 5 and the presence of the flaw of the glass pipe 2 is inspected on the basis of a change in the receiving quantity of the reflected light. COPYRIGHT: (C)2009,JPO&INPIT