Solid-state imaging element, imaging device, and signal processing method

A solid-state image sensor comprising:

• a photosensitive cell array in which a plurality of unit blocks are arranged two-dimensionally, each said unit block including first, second, third and fourth photosensitive cells;
• and
• a light dispersing element array that is arranged so as to face the photosensitive cell array and that includes first and second types of light dispersing elements,
• wherein if light that would be directly incident on each said photosensitive cell, were it not for the light dispersing element array, is called that photosensitive cell's entering light and if visible light rays included in the cell's entering light is comprised of first, second and third color components and if a rest of the visible light rays, which is made up of color components other than a particular one of the first, second and third color components, is called a complementary color ray of that particular color component,
• the light dispersing element array is configured so that the first type of light dispersing element makes a part of light rays with the first color component, which is included in the entering light of each of the first and second photosensitive cells, incident on the first photosensitive cell and that the second type of light dispersing element makes a part of light rays with the second color component, which is included in the entering light of each of the third and fourth photosensitive cells, incident on the fourth photosensitive cell,
• wherein the first type of light dispersing element further makes a part of light rays with the first color component, which is included in the entering light of each of the first and third photosensitive cells, incident on the first photosensitive cell, and
• wherein the second type of light dispersing element further makes a part of light rays with the second color component, which is included in the entering light of each of the second and fourth photosensitive cells, incident on the fourth photosensitive cell.

A solid-state image sensor comprising:

• a photosensitive cell array in which a plurality of unit blocks are arranged two-dimensionally, each said unit block including first, second, third and fourth photosensitive cells;
• and
• a light dispersing element array that is arranged so as to face the photosensitive cell array and that includes first and second types of light dispersing elements,
• wherein if light that would be directly incident on each said photosensitive cell, were it not for the light dispersing element array, is called that photosensitive cell's entering light and if visible light rays included in the cell's entering light is comprised of first, second and third color components and if a rest of the visible light rays, which is made up of color components other than a particular one of the first, second and third color components, is called a complementary color ray of that particular color component,
• the light dispersing element array is configured so that the first type of light dispersing element makes a part of light rays with the first color component, which is included in the entering light of each of the first and second photosensitive cells, incident on the first photosensitive cell and that the second type of light dispersing element makes a part of light rays with the second color component, which is included in the entering light of each of the third and fourth photosensitive cells, incident on the fourth photosensitive cell
• wherein the first type of light dispersing element includes four light dispersing elements that are arranged to face four boundaries that surround the first photosensitive cell, and
• wherein the second type of light dispersing element includes four light dispersing elements that are arranged to face four boundaries that surround the fourth photosensitive cell.