Image sensor and electronic device including same

An image sensor includes: a sensor substrate including a plurality of unit pixel groups, each unit pixel group including a first pixel, a second pixel, a third pixel, and a fourth pixel arranged in a Bayer pattern; and a color separation lens array separating incident light according to a wavelength and converging light on each of the first to fourth pixels, in which the color separation lens array includes a plurality of pixel corresponding groups respectively corresponding to the plurality of unit pixel groups, and each of the plurality of pixel corresponding groups includes first to fourth pixel corresponding regions corresponding to the first to fourth pixels, and a plurality of nanopillars. In the plurality of pixel corresponding groups, the relative positional relationships between the nanopillars of the first to fourth pixel corresponding regions of each of the plurality of peripheral groups located outside the center of the color separation lens array may be different from each other. 一种图像传感器，包括：传感器衬底