Lens array, LED head, exposure device, image forming apparatus and reading apparatus

摘要

A lens array includes a plurality of lens groups each of which includes a plurality of lenses arranged in a direction perpendicular to optical axes of the lenses. The lens groups are disposed so that the lenses of the respective lens groups have aligned optical axes. A light shielding member is provided between the lens groups. The light shielding member has a plurality of apertures with substantially cylindrical shapes through which the optical axes of the respective lenses pass. The light shielding member is integrally formed so as to include a plurality of the apertures.