Title:
不均一な遮光体を有するイメージセンサ
Document Type and Number:
Japanese Patent JP5684139
Kind Code:
B2
Abstract:
An image sensor includes a pixel array divided into two or more corresponding sub-arrays. The pixel array includes an imaging area having a plurality of pixels and one or more reference areas each having a plurality of reference pixels. A continuous non-uniform light shield overlies, or individual non-uniform light shields overlie, each reference pixel in a row or column of reference pixels. An image sensor can include one or more rows or columns of reference pixels. An output channel is electrically connected to each sub-array for receiving the signals generated by the plurality of pixels and reference pixels in each sub-array. The pixel signals generated by the reference pixel pairs in one or more rows or columns in corresponding sub-arrays are used to determine one or more correction factors that compensate for the differences or mismatches between the output channels.
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Inventors:
ワン，シェン
Application Number:
JP2011537427A
Publication Date:
March 11, 2015
Filing Date:
November 20, 2009
Export Citation:
Assignee:
オムニヴィジョン テクノロジーズ インコーポレイテッド
International Classes:
H04N5/369; H01L27/14; H01L27/148; H04N5/357
Attorney, Agent or Firm:
Tadahiko Ito
Shinsuke Onuki
Tadashige Ito
Shinsuke Onuki
Tadashige Ito