| 摘要 |
PROBLEM TO BE SOLVED: To provide a device having a light source group for illumination capable of illuminating various types of electronic components so as to surely picking up images with an area sensor. SOLUTION: A device 10A has illumination light source groups 6, 7, 8 for irradiating light to a read objective material 3 in order to pickup the image of the read objective material 3 with an area sensor. The illumination light source groups 6, 7, 8 are arranged at a plurality of stages in the surroundings of a reflecting light axis lines A1 extending from the read objective material 3, and irradiation elevation angles α deg., β deg., γ deg. of the illumination light source groups 6, 7, 8 at each stage are gradually increased with going away from the read objective material 3. |
