| 摘要 |
PROBLEM TO BE SOLVED: To provide a flaw detection method which enables the stable and precise detection of the flaw on a strip of resin film, and a flaw detector. SOLUTION: In the flaw detection method for detecting the flaw on the continuously fed strip of resin film by a detection means, the detection means includes an illumination means, a first imaging means for imaging the surface side of the strip of resin film, a second imaging means for imaging the back of the strip of resin film and a grasping means for grasping both ends of the strip of resin film. The strip of resin film is grasped at least in a flaw detecting inspection region in a state that tension is applied to the strip of resin film in its width direction with respect to the feed direction of the strip of resin film at least by the grasping means. The grasping means is moved at least in the inspection region in connection with the speed in the feed direction of the strip of resin film and the flaw on the strip of resin film is continuously detected by the detection means. COPYRIGHT: (C)2009,JPO&INPIT
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