| 摘要 |
PURPOSE:To provide a form measuring device that is able to select a regular- reflected light out of a measured object without mistaking other lights and yet higher accuracy and reliability. CONSTITUTION:A form measuring device lights plural pieces of light emitting diodes 2 optionally, illuminating solder S from different angles, and photographs a light regular-reflected on a surface of the solder S, and finds out the position of an image of the regular reflected light from the secured image, thereby measuring a three-dimensional from of the solder S. Then, the properness of these reflected lights out of the solder S is judged on the basis of a relative distance 11 among images A-D of these four regular reflected lights and a distance 12 among these images A-D of these regular reflected light from a tip 16 of a lead. |
