Patent ID: 8793089
Filing Date: 2014-07-29
Classification: G01B

Abstract:
1. A method for inspecting the quality of a glass plate, which is a method of judging the quality from a design data of a glass plate attached for use as a window glass, and a shape data of a measured glass plate; the method comprising: a first step of setting a first design data A representing the shape of the attached glass plate, a first weight pattern being one main weight pattern and second and third weight patterns being sub weight patterns on four actual measurement weight supporting points corresponding to weight supporting points of the actual measurement inspection stand selected according to the shape of the attached glass plate; a second step of calculating second design data B, that are B a third step of calculating third design data C, that are C a fourth step of calculating the position data C a fifth step of calculating two position vectors ΔC a sixth step of measuring a first actual measurement data Y a seventh step of calculating position data Y an eighth step of calculating a position vector ΔY a ninth step of comparing ΔY a tenth step of calculating the ratio r of ΔY an eleventh step of obtaining a shape correction amount R=r(C a twelfth step of calculating a value corresponding to a difference Y a thirteenth step of judging the quality of the glass plate based on the value corresponding to Y