Image sensor and electronic device

An electronic device, comprising:

• one or more processors;
• and
• an image sensor coupled to the one or more processors,
• wherein the one or more processors are configured to process an electrical signal output by the image sensor,
• wherein the image sensor comprises a cover, a first metasurface layer, and a detection layer, and the first metasurface layer is located between the cover and the detection layer,
• wherein the first metasurface layer is configured to receive incident light, the incident light comprises incident rays at a plurality of incident angles, the first metasurface layer comprises a plurality of light splitting units, different light splitting units correspondingly receive incident rays from different incident angles, the plurality of light splitting units comprise a first light splitting unit and a second light splitting unit, the first light splitting unit and the second light splitting unit have different patterns, the first light splitting unit and the second light splitting unit separately split corresponding incident rays into light of a plurality of colors by using the different patterns, and a pattern of the second light splitting unit is obtained by transforming a pattern of the first light splitting unit, wherein the second light splitting unit is located on a first side of the first light splitting unit, the pattern of the second light splitting unit is obtained by translating the pattern of the first light splitting unit towards a second side, and the second side and the first side are two opposite sides of the first light splitting unit, and
• wherein the detection layer is configured to receive light of a plurality of colors split by the plurality of light splitting units, and convert the received light of the plurality of colors into electrical signals.