To provide an image pickup device for achieving pupil transmission so that a partial photographing luminous flux toward an imaging surface is used for other purposes.

The image pickup device 1 is equipped with: the imaging surface 2 on which a plurality of pixels 6 for photoelectric conversion are disposed; and a reflecting surface 5 that is arranged on a surface side with the imaging surface 2 provided thereon, and reflects the partial photographing luminous flux toward the imaging surface 2 for pupil transmission. The reflecting surface 5 is composed of, for example, a plurality of minute reflecting surfaces 4, and each minute reflecting surface 4 is arranged, for example, in the space between the pixels 6.