APPARATUS FOR TESTING SHAPE OF OBJECT

PROBLEM TO BE SOLVED: To solve the problems wherein in methods for testing the shape of an object, e.g. the shape of a bump, using conventional techniques, the light cutting method, the laser scanning method and the three-dimensional testing method using conformal points can not test the shape of bu...

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1. Verfasser: KITAMURA SATORU
Format: Patent
Sprache:eng
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Zusammenfassung:PROBLEM TO BE SOLVED: To solve the problems wherein in methods for testing the shape of an object, e.g. the shape of a bump, using conventional techniques, the light cutting method, the laser scanning method and the three-dimensional testing method using conformal points can not test the shape of bump because of placing emphasis on testing the height of bump, or the test method carrying out image processing using a video camera can not test the presence or absence of an abnormal projection on the bump other than the position and size of the bump because of lighting and photographing means. SOLUTION: The apparatus for testing the shape of object, which has an illuminating means that obliquely illuminates the object under test for testing the shape, and which has a photographing means that obliquely photographs the object under test illuminated by the illuminating means in the reverse direction relative to the illumination and outputs picture signals, determines whether the shape of the object under test is good or not using data obtained by digitizing the picture signal inputted from the photographing means.