| 摘要 |
PURPOSE:To execute an inspection of soldering, based on whether solder exists or not, and the feature quantity related to its shape, by photographing an optical image generated by radiating a slit light, and deciding whether a joint part is satisfactory or not, from a center-of-gravity point train generated by an image processing. CONSTITUTION:A projecting device 4 is arranged so that it emits a slit light and its slit light crosses a joint part of a lead 3. The optical image of the joint part of the lead 3, generated by the slit light irradiation of the projecting device 4 is brought to image pickup from the direction in which its cross section can be brought to image pickup, by a video camera 5. A video signal brought to image pickup is inputted to an image memory 8 from the camera 5. A controller 6 consisting of a microcomputer executes an image processing which has used a prescribed window, generates the center-of-gravity point train of a profile of the optical image, and decides whether the solder joint part of the lead 3 is normal or defective, by the generated center-of-gravity point train. |
