| 摘要 |
PROBLEM TO BE SOLVED: To provide a surface defect inspection device for a band like body capable of detecting a surface defect by carrying out image pickup of a band like body surface at a optional pickup angle by a light source with low light intensity in regard to a surface defect inspecting device using a time delay integration type video camera. SOLUTION: The surface defect inspection device for the band like body is provided with a lighting system 10 radiating a linear light 12 crossing the band like body 1 on the surface of the moving band like body 1, and the time delay integration type video camera 20 carrying out image pickup of a reflected image of the linear light 12 reflected by the band like body surface. A width of the linear light 12 is narrower than a light receiving face of the video camera, and a shift speed of picture element rows of the video camera 20 is adjusted to a constant speed independent of a moving speed of the band like body 1. COPYRIGHT: (C)2004,JPO
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