Solid state image sensor having a first optical waveguide with one contiguous core and a second optical waveguide with plural cores

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United States of America Patent

PATENT NO 9059059
APP PUB NO 20140168487A1
SERIAL NO

14183878

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A solid state image sensor has a plurality of ranging pixels on the imaging area thereof and each of the ranging pixels has a photoelectric conversion section and an optical waveguide arranged at the light-receiving side of the photoelectric conversion section. The optical waveguide has at least two optical waveguides including a first optical waveguide arranged at the light-receiving side and a second optical waveguide arranged at the side of the photoelectric conversion section in the direction of propagation of light. The core region of the first optical waveguide shows a refractive index lower than the refractive index of the core region of the second optical waveguide and is designed so as to show a high light-receiving sensitivity relative to light entering at a specific angle.

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Patent Owner(s)

  • CANON KABUSHIKI KAISHA

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Yamada, Daisuke Yokohama, JP 208 1582

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