METHOD FOR INSPECTING QUALITY OF GLASS PLATE AND QUALITY INSPECTION PROGRAM

Title:

METHOD FOR INSPECTING QUALITY OF GLASS PLATE AND QUALITY INSPECTION PROGRAM

Document Type and Number:

WIPO Patent Application WO/2010/090227

Kind Code:

A1

Abstract:

Provided is a method for inspecting the quality of a glass plate wherein the shape of the glass plate on a measurement inspection table with four support points can be predicted from the shape of the glass plate on a general-purpose measurement inspection table with three support points. The method includes steps of computing three kinds of design shape data relating to the glass plate in the state where the glass plate is placed on the measurement inspection table with three support points, computing positional data relating to virtual four-point support of the glass plate on the basis of measurement shape data relating to the glass plate in the state where the glass plate is placed on the measurement inspection table, computing shape data on a intended measurement inspection table using the correction amount of load distribution according to the degree of the movement of the load distribution, and determining the quality of the glass plate on the basis of the shape data on the intended measurement inspection table, shape data relating to the glass plate in the state where the glass plate is placed on the intended measurement inspection table, and quality criteria.

Inventors:

SONDA YOSHIYUKI (JP)

Application Number:

PCT/JP2010/051528

Publication Date:

August 12, 2010

Filing Date:

February 03, 2010

Export Citation:

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Assignee:

ASAHI GLASS CO LTD (JP)
SONDA YOSHIYUKI (JP)

International Classes:

G01B21/20; G01B11/16; G01B11/25

Domestic Patent References:

WO2007010875A1	2007-01-25
WO2007010875A1	2007-01-25

Foreign References:

JPH1163906A	1999-03-05
JP2003344041A	2003-12-03
JPH10279323A	1998-10-20
JPH04242103A	1992-08-28
JP2009022839A	2009-02-05

Other References: