METHOD AND DEVICE FOR INSPECTING FLAW OF GLASS ARTICLE

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...

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Bibliographic Details
Main Authors HASEGAWA YOSHINORI, NOGUCHI KAZUYA
Format Patent
LanguageEnglish
Published 20.08.2009
Subjects
INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIRCHEMICAL OR PHYSICAL PROPERTIES
MEASURING
PHYSICS
TESTING
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Summary: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
Bibliography:Application Number: JP20080025553