Title:
焦点検出装置、撮像素子および電子カメラ
Document Type and Number:
Japanese Patent JP5278165
Kind Code:
B2
Abstract:
A focus detection apparatus includes first-type and second-type pixels and an image-formation-state detector. Each first-type pixel includes a photoelectric converter that receives light from an image-pickup optical system and first and second optical members arranged on an optical path from the optical system to the photoelectric converter and having different refractive indices, and outputs a first charge signal corresponding to an amount of light received by the photoelectric converter. Each second-type pixel includes the photoelectric converter and the first and second optical members arranged such that a positional relationship relative to the photoelectric converter differs from that in each first-type pixel, and outputs a second charge signal corresponding to an amount of light received by the photoelectric converter. The detector detects an image formation state of the image-pickup optical system on the basis of the first and second charge signals.
Inventors:
Yoshiaki Komuro
Application Number:
JP2009126818A
Publication Date:
September 04, 2013
Filing Date:
May 26, 2009
Export Citation:
Assignee:
ソニー株式会社
International Classes:
G02B7/34; G03B13/36; H04N5/232; H04N5/335; H04N5/369
Domestic Patent References:
| JP2009109965A |
Attorney, Agent or Firm:
Toshikazu Marushima
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