APPARATUS FOR INSPECTING THE APPEARANCE OF PRODUCTS

An apparatus for inspecting the appearance of products is provided and includes an image pickup tube for photographing an image of a standard product whose appearance is complete and an image of a sample product whose appearance is to be inspected and for generating two video signals respectively co...

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Bibliographische Detailangaben
Hauptverfasser:	ARIMURA Y,JA, KUBO M,JA
Format:	Patent
Sprache:	eng
Schlagworte:	CALCULATING COMPUTING COUNTING IMAGE DATA PROCESSING OR GENERATION, IN GENERAL INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIRCHEMICAL OR PHYSICAL PROPERTIES MEASURING MEASURING ANGLES MEASURING AREAS MEASURING IRREGULARITIES OF SURFACES OR CONTOURS MEASURING LENGTH, THICKNESS OR SIMILAR LINEARDIMENSIONS PHYSICS TESTING
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Beschreibung
Zusammenfassung:	An apparatus for inspecting the appearance of products is provided and includes an image pickup tube for photographing an image of a standard product whose appearance is complete and an image of a sample product whose appearance is to be inspected and for generating two video signals respectively corresponding thereto. Means are provided for delaying one of the two video signals which corresponds to either the standard product of the sample product. Further means are provided for comparing the delayed video signals corresponding to either the standard product or the sample product and the non-delayed video signals which correspond to the other of the two video signals to thereby obtain a comparison therebetween. In accordance with the comparison between the image signals of the standard product and the same of the sample product, it can be readily determined if the appearance of the sample product is the same or different from that of the standard product and accordingly whether a defect exists or not.