A compound-eye imaging device comprises nine optical lenses arranged in a matrix array of three rows and three columns, and a solid-state imaging element for capturing unit images formed by the optical lenses. A stray light blocking member having a rectangular-shaped window is provided on the capture zone side of the optical lenses, eliminating the need to provide, between the solid-state imaging element and the optical lenses, walls by which light propagation paths of lights emitted from the optical lenses are partitioned from each other. The stray light blocking member blocks incident lights in a range outside each effective incident view angle range of each optical lens. This prevents the light entering each optical lens to form a unit image from interfering with other unit images formed by adjacent optical lenses, thereby obtaining a good quality image, without complicating the manufacturing process and increasing the cost thereof.