| 摘要 |
PROBLEM TO BE SOLVED: To surely detect a damaged condition of a label even the label itself is transparent or translucent, and to surely detect a positional shift of the label with respect to a container under the condition when the label is in the state attached to the container. SOLUTION: This label inspection method is one by which a label L of an inspection object is irradiated with inspection light, and the inspection light after the irradiation is photoreceived to inspect the condition of the label L. There are provided a method and device for inspecting the label L by receiving the inspection light after the irradiation of the label L by imparting an ultraviolet absorbing function or an infrared absorbing function to the label L, and by using light including ultraviolet rays or infrared rays as the inspection light, a method and device for inspecting the label L by receiving the inspection light after the irradiation of the label L by imparting an ultraviolet fluorescent function to the label L, and receives the inspection light after the radiation of the label L by imparting polarization function or a rotatory function to the label L. COPYRIGHT: (C)2004,JPO
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