Solid-state imaging device including arrays of optical elements and photosensitive cells

Abstract

Light-splitting elements are arranged in at least two columns and two rows to form two pairsand. Each element splits incident light into light rays and makes them fall on a portion of a photosensing section right under itself and an adjacent photosensitive cell. The elementsplits the incident light so that a primary color ray Cand its complementary color ray Center an adjacent celland an underlying cell, respectively. The elementmakes a primary color ray Cand its complementary color ray Center an underlying celland an adjacent cell, respectively. The elementdoes the same as the element. And the elementmakes a primary color ray Cand its complementary color ray C' enter an adjacent celland an underlying cell, respectively. These photosensitive cellsperform photoelectric conversion, thereby outputting an electrical signal representing the intensity of the incident light. By carrying out simple calculations between the outputs of these cells, a color signal and a luminance signal are generated.