| 摘要 |
PROBLEM TO BE SOLVED: To produce a printed board in a proper state by allowing a suitable recognition process to be executed by deciding non-defective or defective state of an illumination, with respect to the aging changes of the illumination in terms of recognition, and automatically dimming a brightness of a light source unit, based on the decision. SOLUTION: A method for correcting an illuminance of an electronic component assembling apparatus comprises the steps of first measuring a gradation value B, and comparing whether or not this actually measured gradation value B is a reference gradation value A or more to be stored in a RAM 32 of an image process controller 30 by a CUP 31. The method further comprises the steps of checking the illumination (S1), and this routine is finished, if the checked illumination is the reference value A or more, but executing a work if the illumination is the value A or less. The method also comprises the steps of setting the CPU 31 by teaching of the illuminance data previously implemented, extracting the present illuminance data D stored in the RAM 32 and referring to it (S2). The method also comprises steps of obtaining and deciding the data, according the formula D+αC(1-B/A) by the CPU 31 (S3), where αis the amount of change of the data per gradation. The method also comprises the steps of re-checking the illumination as described above (S1), and finishing the automatic correction of the illumination, if the data is the value A or more. |
