| 摘要 |
<p>PROBLEM TO BE SOLVED: To provide an image sensor head capable of reducing dispersion of light quantity.SOLUTION: The image sensor head includes: a plurality of light-emitting elements 5, 6 arrayed in a first direction R1 to emit light toward a reading medium 23; a light-emitting element substrate 3 for holding the light-emitting elements 5, 6; and light receiving elements 9 for receiving light reflected from the reading medium 23. Each of the light-emitting elements 5, 6 consists of a rectangular shape whose one side is longer in plane view. The light-emitting elements 5, 6 include first light-emitting elements 5 and second light-emitting elements 6. The first light-emitting elements 5 are arranged so that long sides 5a of the respective first light-emitting elements 5 are disposed along the first direction R1, and each of the second light-emitting elements 6 is arranged so that the long side of the second light-emitting element 6 is disposed along a second direction R2 different from the first direction R1.</p> |
