Patent ID: 11948955
Assignee: SAMSUNG ELECTRONICS CO., LTD.
Field: Semiconductors (Electrical engineering)
Classification: CPC H  G | IPC G  H

Claim 13:
14. The image sensor of claim 12, wherein the first fine structure, the second fine structure, the third fine structure, and the fourth fine structure are configured such that
the light of the first wavelength at a position immediately after passing through the color separating lens array forms a phase distribution of 2Nπ at positions corresponding to a center of the plurality of first photosensitive cells and a center of the plurality of fourth photosensitive cells and forms a phase distribution of (2N−1)π at positions corresponding to a center of the plurality of second photosensitive cells and a center of the plurality of third photosensitive cells,
the light of the second wavelength at a position immediately after passing through the color separating lens array forms a phase distribution of (2M−1)π at the positions corresponding to the center of the plurality of first photosensitive cells and the center of the plurality of fourth photosensitive cells, forms a phase distribution of 2Mπ at the position corresponding to the center of the plurality of second photosensitive cells, and forms a phase distribution that is greater than (2M−2)π and less than (2M−1)π at the position corresponding to the center of the plurality of third photosensitive cells, and
a phase distribution such that the light of the third wavelength is (2L−1)π on the center of the plurality of first photosensitive cells and the center of the plurality of fourth photosensitive cells, is 2Lπ on the center of the plurality of third photosensitive cells, and is greater than (2L−2)π and less than (2L−1)π on the center of the plurality of second photosensitive cells, at a location below the color separating lens array, the light of the third wavelength at a position immediately after passing through the color separating lens array forms a phase distribution of (2L−1)π at the positions corresponding to the center of the plurality of first photosensitive cells and the center of the plurality of fourth photosensitive cells, forms a phase distribution of 2Lπ at the position corresponding to the center of the plurality of third photosensitive cells, and forms a phase distribution that is greater than (2L−2)π and less than (2L−1)π at the position corresponding to the center of the plurality of second photosensitive cells, where N, M, and L are integers greater than 0.