An imaging device includes: a photoelectric conversion unit; and a correction unit that corrects the angle of light incident on the photoelectric conversion unit, the correction unit being located on the side of the light incident on the photoelectric conversion unit. The correction unit has a curved surface, and the surface shape of the curved surface is a spherical surface. The surface shape is a shape according to a predetermined equation involving the radius of the spherical surface, the distance from the center of the optical axis of the imaging plane to the edge of the imaging plane, and the refractive index of the material forming the correction unit.