IMAGE SENSOR HAVING NANO-PHOTONIC LENS ARRAY AND ELECTRONIC APPARATUS INCLUDING THE IMAGE SENSOR

An image sensor includes a sensor substrate including a plurality of pixels that are two-dimensionally disposed in a first direction and a second direction; and a nanophotonic lens array including a first pixel corresponding region, a second pixel corresponding region, a third pixel corresponding region, and a fourth pixel corresponding region respectively corresponding to the plurality of pixels, wherein each of the first to fourth pixel corresponding regions includes a plurality of nano-structures that are arranged to condense light of a first wavelength, light of a second wavelength, and light of a third wavelength respectively onto the plurality of pixels, and in each of the second pixel corresponding region and the fourth pixel corresponding region, cross-sectional area sizes of the plurality of nano-structures are distributed asymmetrically in the first direction, the second direction, and a first diagonal direction, and are distributed symmetrically in a second diagonal direction that crosses the first diagonal direction.