| 摘要 |
PROBLEM TO BE SOLVED: To provide an image sensor head that suppresses a reduction in intensity of light and makes an illuminance distribution in the main scanning direction uniform.SOLUTION: An image sensor head includes a light-emitting device 5, a light guide body 11 that guides light emitted from the light-emitting device 5 in the main scanning direction R1, and a light-receiving device 9 that receives light emitted from the light guide body 11 and reflected on a medium to be read. The guide body 11 has an emission part that emits light and a reflection surface that is located on the opposite side of the emission part, and has a first portion 11a where the reflection surface is orthogonal to a virtual line connecting a reading position for the medium to be read and emission part and a second portion 11b where the reflection surface is not orthogonal to the virtual line.SELECTED DRAWING: Figure 2 |
