发明名称 |
DEVICE FOR DETECTING SURFACE DEFECTS OF ONE DIMENSIONALLY CONTINUOUS O BJECTS TO BE EXAMINED |
摘要 |
PURPOSE:Minute sections of an object to be examined are radiated annularly from three circumferential directions by a light source and plural reflecting mirrors, whereby the captioned detecting device which can dispense with one light source and may simplify maintenance and inspection is obtained. |
申请公布号 |
JPS5249083(A) |
申请公布日期 |
1977.04.19 |
申请号 |
JP19750124395 |
申请日期 |
1975.10.17 |
申请人 |
HITACHI LTD |
发明人 |
KUNI TOMOHIRO;AKIYAMA NOBUYUKI |
分类号 |
G01N21/89;G01B11/30;G01N21/88;G01N21/892 |
主分类号 |
G01N21/89 |
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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