Patent ID: 8106343

Claim:
An image sensing system comprising: a pixel array in which a plurality of pixels including a first pixel and a second pixel are arrayed two-dimensionally; a color filter array including a first color filter which selectively transmits light of a first wavelength so as to make light of the first wavelength enter the first pixel, and a second color filter which selectively transmits light of a second wavelength so as to make light of the second wavelength enter the second pixel; a light shielding portion which is interposed between the color filter array and the pixel array, and defines an aperture for each of the plurality of pixels; and a signal processing unit which amplifies signals from the first and second pixels, wherein the amount of electric charges generated in the first pixel in accordance with light of the first wavelength entering the first pixel when white light having a continuous spectrum equivalent in light energy per unit wavelength width between all wavelengths in a visible region is partially transmitted by the first color filter is larger than the amount of electric charges generated in the second pixel in accordance with light of the second wavelength entering the second pixel when the light having the continuous spectrum is partially transmitted by the second color filter, an area of the aperture of the light shielding portion, for the first pixel is larger than an area of the aperture of the light shielding portion, for the second pixel, and the signal processing unit amplifies the signal from the first pixel with a gain that is smaller than a gain by which the signal processing unit amplifies the signal from the second pixel.