Patent ID: 6867409

Claim:
A solid-state image sensing device comprising a plurality of pixels for taking an image, each of said pixels comprising: a photoelectric converting element for generating an electric signal according to an amount of light projected thereto; a converter capable of logarithmically converting the electric signal into a converted electric signal while a first predetermined voltage is biased; and a switching element, provided between said photoelectric converting element and said converter, for electrically connecting and disconnecting said photoelectric converting element and said converter, wherein each of said switching elements electrically disconnects a respective one of said photoelectric converting elements and a respective one of said converters while outputting an electric signal for correcting a sensitivity unevenness among the plurality of pixels from a respective one of said pixels, and wherein each of said converting elements is temporarily biased by a second predetermined voltage before taking the image, the second predetermined voltage being suitable for discharging an electric charge from a respective one of said photoelectric converting elements and being different from the first predetermined voltage.