OPTICAL MEMBER AND IMAGE READING APPARATUS

An optical member (1) is provided with a lens array (6) having a plurality of lens bodies (5), and a plurality of transmissive members (7). The plurality of transmissive members (7) are formed of members having the same refractive index, and are respectively provided at positions closer to the object to be read (D) than the corresponding lens bodies (5) or at positions farther from the object to be read (D) than the lens bodies (5). Each of the transmissive members (7) has a columnar shape extending along the optical axis of the lens body (5), and emits light incident from one end surface from the other end surface. At least one of the plurality of lens bodies (5) and the plurality of transmissive members (7) is arranged so as to have a space therebetween greater than the arrangement error of the plurality of lens bodies (5) and the plurality of transmissive members (7). 光学部件(1)具备：具有多个透镜体(5)的透镜阵列(6)、和多个透过部件(7)。多个透过部件(7)由折射率一样的部件形成，分别设置于比对应的透镜体(5)接近读取对象物(D)的位置或者比透镜体(5)远离读取对象物(D)的位置。各透过部件(7)具有沿着透镜体(5)的光轴延伸的柱状形状