| 摘要 |
PURPOSE:To perform correctly, and at the same time, easily and swiftly the confirmation of the position of a conductive post by an ITV camera by a method wherein inclined planes are provided in the vicinity of the peripheral edge of the upper surface of the conductive post. CONSTITUTION:The part of the peripheral edge of the upper surface of a conductive post 4 is chamfered. When light is irradiated from the top over the conductive post 4 and the position of the post 4 is confirmed by the ITV camera, no reflected light is incident form a chamfering part 4b whatever and a bright- black part is formed on the peripheral edge of the white part, which shows an upper face flat part 4a. Hereby, a binary picture signal constituting the contrast between the bright black and white colors is obtained and the confirmation of the position of the post 4 is performed correctly, and at the same time, easily and swiftly. The conductive post 4 is generally formed of a metal flat plate, whereon a punching work is performed. Incidentally, the set positions of markers m1, m2, l1 and l2 are put on the boundary region between the white part and the black stripped part. According to this constitution, the work of the wiring connection is largely speeded up. |
