| 摘要 |
PROBLEM TO BE SOLVED: To provide a detection apparatus by which a state on the surface of a resin molded product can be detected even when the state is a silver color whose contrast to a good part is small. SOLUTION: A detection apparatus is provided with illumination devices 3 which irradiate resin molded products 2, with imaging devices 5a, 5b which image the surface of the resin molded products 2 and with an image processor 6 by which image data obtained by the imaging devices 5a, 5b are changed into numerical values. A density integrating and enhancement circuit 7 which integrates the density of the image data along the resin flow direction of the resin molded products 2 so as to be enhanced and a judgment circuit 8 which compares the density data obtained by the density integrating and enhancement circuit 7 with a set density so as to judge the surface state of the resin molded products 2 are installed at the image processor 6. |
