| 摘要 |
PURPOSE:To accurately control the amount of coating of adhesive, and realize stable coating, by arranging a second illumination part for irradiating spotwise adhesive agent from the oblique direction, below a first illumination part. CONSTITUTION:When adhesive coating for a circuit board 4 is finished, the circuit board 4 is carried from a coating stage 1a to a test stage 1b, and retained by the test stage 1b. On the test stage, the whole field region of a CCD camera 3 which recognizes and inspects the coating state of adhesive 6' is irradiated by a first illumination part 7. A second illumination part 10 irradiates spotwise only the periphery of the adhesive 6'. An image processing part 8 picks up the adhesive 6' from the back ground of the circuit board 4', and extracts only the shape of the adhesive 6', thereby recognizing and analysing the image picture. Hence the coating state of the adhesive 6' is measured and inspeted, and the results are sent to a control part 9 which applies feedback to the amount of coating of the adhesive 5. |
