A solid-state image sensing device and a camera

Title:

A solid-state image sensing device and a camera

Document Type and Number:

Japanese Patent JP6001030

Kind Code:

B2

Abstract:

PROBLEM TO BE SOLVED: To provide a solid state image sensor capable of performing distance measurement with high accuracy, or performing the distance measurement with high accuracy even when a pixel size is small.SOLUTION: A solid state image sensor with a plurality of pixels comprises: a photoelectric conversion part for converting light into an electric signal; and an optical waveguide composed of a core part and a clad part disposed on a light incident side of the photoelectric conversion part. The optical waveguide is configured by at least two optical waveguides composed of a first optical waveguide provided in a direction of light propagation on the light incident side, and a second optical waveguide provided on a photoelectric conversion part side. The core part in the first optical waveguide on the light incident side is formed with a refractive index smaller than that of the core part in the second optical waveguide on the photoelectric conversion part side, and configured to enhance photosensitivity of light incident from a specified angle.

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Inventors:

Daisuke Yamada

Application Number:

JP2014203927A

Publication Date:

October 05, 2016

Filing Date:

October 02, 2014

Export Citation:

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Assignee:

Canon Inc

International Classes:

H04N5/369; H01L27/14; H04N5/232; H04N5/372; H04N5/374

Domestic Patent References:

JP2010225939A
JP2008312073A

Attorney, Agent or Firm:

Okabe
Shinichi Usui
Takao Ochi
Seiichiro Takahashi
Koji Yoshizawa
Masami Saito
Katsuhiko Kimura
Naofumi Tanaka

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