| 摘要 |
PROBLEM TO BE SOLVED: To make it possible to obtain a clear image even without increasing the quantity of light, by making it possible to efficiently illuminate and to deal with the direct illumination and transmission illumination in response to the kind of an electronic component. SOLUTION: The apparatus for mounting an electronic component comprises a reflecting plate R1 disposed behind the component P1, a transmission illuminating light source for illuminating a light toward the plate to brighten the background of the component, a direct illuminating light source for illuminating a light to the component itself, and a line sensor 9 for introducing the reflected light from the plate or the component to itself and outputting image information. The transmission source has a first light source unit 13 and a second light source unit 14 disposed at both sides of the sensor 9 so that a first band light L1 illuminated from the unit 13 to the plate R1 and a second band light L2 illuminated from the unit 14 to the plate R1 are disposed in such a manner that the sensor 9 receives the reflected light on the plate R1. Further, the direct source has a third light source unit 20 for illuminating a third band light L3 to the area where the sensor 9 receives the reflected light. |
