IMAGE SENSOR UNIT, IMAGE READING DEVICE, AND IMAGE FORMATION DEVICE

摘要

An image sensor unit (1A) having a light-focusing unit (40) for focusing light that has image information on an object to be illuminated, an image sensor (48) for receiving the light that has passed through the light-focusing unit (40) and converting the received light to an electric signal, and a frame (10A) for accommodating the light-focusing unit (40) and the image sensor (48), wherein the image sensor unit (1A) has an urging member (50A) for urging and securing the light-focusing unit (40) to a frame (45), the urging member (50A) urging and securing the light-focusing unit (40) to the frame (10A) from the light-incoming side or the light-outgoing side.