| 摘要 |
PROBLEM TO BE SOLVED: To provide a position detection apparatus that optimizes lighting corresponding to various kinds of electronic parts, and clearly and accurately recognizes images of electronic parts. SOLUTION: An electronic part 3 attached by a suction nozzle 2 is recognized by a recognition camera 30. A diffusion plate 4 in a predetermined color (A- color) is arranged at an opposite position of the recognition camera 30 to the electronic part 3, and lighted from lower side with almost the same colored light as the diffusion plate 4 by a transmission method, and therewith the diffusion plate 4 is changed to a dark color by lighting with a light (B-color) being an almost complementary color to the diffusion plate 4 and can be lighted by a reflected method. In addition, a lighting color can be changed correspondingly to an electronic part color, and each part of the electronic part 3 is significantly contrasted by changing a lighting color corresponding to a color of each part (i.e. a body, a lead) of the electronic part 3. |
