发明名称 |
INSPECTION APPARATUS WITH IMPROVED DETECTION OF SURFACE DEFECTS OVER LARGE AND CURVED SURFACES |
摘要 |
A surface defect inspection apparatus includes a light radiation source, arranged to oppose a surface to be inspected serving as a mirror surface, for radiating light having a predetermined change pattern toward the surface to be inspected, a camera mechanism for receiving an image of the light radiation source, reflected by the surface to be inspected and forming a received-light image corresponding to the change pattern of the light radiation source, and a discriminator for discriminating a surface defect portion on the surface to be inspected by discriminating a portion whose change pattern is different from the change pattern on the basis of the received-light image formed by the camera mechanism.
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申请公布号 |
US5237404(A) |
申请公布日期 |
1993.08.17 |
申请号 |
US19910723174 |
申请日期 |
1991.06.28 |
申请人 |
MAZDA MOTOR CORPORATION |
发明人 |
TANAKA, KAZUMOTO;ISHIIDE, HIDENORI;SUGIHARA, TSUYOSHI;UTSUNOMIYA, AKINORI;MAKIMAE, TATSUMI |
分类号 |
G01N21/95 |
主分类号 |
G01N21/95 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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