Image reading apparatus

An image reading device (100) is provided with: a first glass member (52); a plurality of condenser lenses (14) provided on a first surface (52a) of the first glass member (52); a first light shielding member (12) having a plurality of first openings (32) corresponding to each of the plurality of condenser lenses (14); a second glass member (51) having a third surface (51a) overlapping the first light shielding member (12); a second light shielding member (11) having a plurality of second openings (31) corresponding to the plurality of first openings (32); a third glass member (53) having a fifth surface (53a) that overlaps the second light shielding member (11); a third light shielding member (15) having a plurality of third openings (34) respectively corresponding to the plurality of second openings (31); and a sensor unit (3) that has a sensor substrate (9) and a plurality of light-receiving pixels (10) that are arranged on the sensor substrate (9) in a predetermined arrangement direction and that correspo