发明名称 SURFACE DEFECT DETECTING METHOD
摘要 PROBLEM TO BE SOLVED: To accurately detect the location and size of even a fine defect without the need for developing processing in a relatively short time. SOLUTION: After a fluorescent liquid 1 is applied to the surface of an object to be inspected P, and the fluorescent liquid 1 adhering to the surface of the object to be inspected P is removed, the surface of the object to be inspected P is irradiated with ultraviolet rays 2 from a direction which intersect the surface at approximately right angles via a light transmitting means 9. Fluorescence 4 from the fluorescent liquid 1 which has permeated in a defect H in the surface of the object to be inspected P is simultaneously received via the light transmitting means 9 to detect the defect H in the surface defect detecting method. After a specific wavelength absorption liquid for absorbing light having a specific wavelength is applied to the surface of the object to be inspected, and the specific wavelength absorption liquid adhering to the surface of the object to be inspected is removed, the surface of the object to be inspected is irradiated with light containing the light having the specific wavelength. Reflected light after the irradiation is received to detect the defect on the surface of the object to be inspected. COPYRIGHT: (C)2004,JPO
申请公布号 JP2004020447(A) 申请公布日期 2004.01.22
申请号 JP20020177658 申请日期 2002.06.18
申请人 OSAKA GAS CO LTD 发明人 UMEMURA MASAKAZU;KAI NOBORU
分类号 G01N21/91;(IPC1-7):G01N21/91 主分类号 G01N21/91
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