Image sensor and image-capturing apparatus with imaging pixel and focusing pixel having light shield layers including openings

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United States of America Patent

PATENT NO 8872950
APP PUB NO 20120249852A1
SERIAL NO

13424865

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Abstract

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The capacitance of a charge-accumulating layer of an imaging pixel is made different from that of a charge-accumulating layer of a focusing pixel, thereby reducing the difference in saturation capacitance due to the difference between the light-reception efficiencies of the imaging pixel and the focusing pixel. The ratio between the capacitance of the charge-accumulating layer of the imaging pixel and that of the charge-accumulating layer of the focusing pixel is determined in consideration of a variation in ratio between the light-reception efficiencies of the imaging pixel and the focusing pixel with a change in at least one of the exit pupil distance and the aperture value.

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Patent Owner(s)

  • CANON KABUSHIKI KAISHA

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Fukuda, Koichi Tokyo, JP 230 2179

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