Visual inspection equipment

Abstract

To conduct the visual inspection of a test object having a convex mirror surface easily with good accuracy.SOLUTION: A visual inspection device 1 comprises: a base 10 which is configured so that a test object 90 having a convex mirror plane 91 is located on a reference axis 80; a lighting device 20 which is configured so that illumination light including a changeable prescribed pattern is radiated in a direction along the reference axis 80; a perimeter mirror 30 which is configured so that a reflection plane 32 tilted with respect to the reference axis 80 is disposed so as to enclose a space around the reference axis 80, and illumination light radiated from the lighting device 20 and passing through a periphery of the test object 90 is reflected by the reflection plane 32 toward the convex mirror plane 91; an imaging device 40 which is configured to image a direction of the convex mirror plane 91 via the space around the reference axis 80 of the perimeter mirror 30; and an information processing device 50 for conducting analysis regarding a surface of the convex mirror plane 91 on the basis of a pattern of reflection by the convex mirror plane 91, of illumination light including the pattern that is included in the image obtained by the imaging device 40.SELECTED DRAWING: Figure 1

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