| 摘要 |
PROBLEM TO BE SOLVED: To provide an image sensor unit which enables multiple rod lens arrays to be aligned with high accuracy and improves the workability of the alignment work when the multiple rod lens arrays are linearly aligned in a main scanning direction.SOLUTION: An image sensor unit 1 includes: a sensor substrate 6 on which multiple sensor chips 7 are mounted; rod lens arrays 20 forming an image with light from a manuscript copy D on the sensor substrate 6; and a frame body 80 housing the multiple rod lens arrays 20. The frame body 80 is divided into the first frame 30a and the second frame 30b. One side surface of the rod lens array 20, which is located in a sub scanning direction, is fixed only by the first frame 30a and the multiple rod lens arrays 20 are aligned in a main scanning direction. |
