Patent ID: 8767114

Claim:
A solid-state image sensor comprising: a photosensitive cell array, in which a number of unit blocks, each including first and second photosensitive cells, are arranged two-dimensionally on an imaging area, a dispersing element array that is arranged so as to face the photosensitive cell array and that includes a plurality of dispersing elements, and a color filter array that is arranged between the photosensitive cell array and the dispersing element array, and that includes a plurality of color filters, wherein if light that would be directly incident on each said photosensitive cell, were it not for the dispersing element array and the color filter array, is called that photosensitive cell's entering light and if the first photosensitive cell's entering light includes light rays that fall within first, second and third wavelength ranges, the dispersing element array includes a first dispersing element that is arranged to face the first photosensitive cell and that makes at least a part of the light rays falling within the first wavelength range included in the first cell's entering light incident on the second photosensitive cell, and the dispersing element array is designed to make light rays falling within at least two ranges of the first wavelength range, the second wavelength range and the third wavelength range incident on at least one of the first and second photosensitive cells, and the color filter array includes a first color filter that is arranged between the first photosensitive cell and the first dispersing element, and that either absorbs or reflects the light rays falling within the first wavelength range.