Japanese optical film visual inspection lighting system
MEC of Japan exhibited the B30 series of visual inspection lighting systems at FPD International 2008, which makes it easier to see scratches on optical films. The product will be available in December 2008. The price is about 300,000 yen.
Roll-to-roll production of optical films is prone to periodic defects. Since it is not always necessary to conduct a comprehensive inspection, most companies except the large manufacturers use visual inspection. The problem with the original lighting system is that the inspection light directly shines into the eyes of the worker, and the eye fatigue causes the inspection accuracy to decrease. This time, the structure in which the halogen light is irradiated from one side to the film and the light source does not directly enter the eyes of the worker is used. In addition, by switching the illumination position, it is also easy to identify scratches in the longitudinal or lateral direction.
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