Virtual high dynamic range large-small pixel image sensor

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United States of America Patent

PATENT NO 9911773
SERIAL NO

14743385

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Abstract

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An image sensor includes photodiodes arranged in semiconductor material. Each of the photodiodes is identically sized and is fabricated in the semiconductor material with identical semiconductor processing conditions. The photodiodes are organized into virtual large-small groupings including a first photodiode and a second photodiode. Microlenses are disposed over the semiconductor material with each of microlenses disposed over a respective photodiode. A first microlens is disposed over the first photodiode, and a second microlens is disposed over the second photodiode. A mask is disposed between the first microlens and the first photodiode. The mask includes an opening through which a first portion of incident light directed through the first microlens is directed to the first photodiode. A second portion of the incident light directed through the first microlens is blocked by the mask from reaching the first photodiode. There is no mask between the second microlens and the second photodiode.

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Patent Owner(s)

  • OMNIVISION TECHNOLOGIES, INC.

International Classification(s)

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Cellek, Oray Orkun Mountain View, US 18 177
Chen, Gang San Jose, US 887 7724
Fu, Zhenhong San Jose, US 5 39
Lu, Chen-Wei San Jose, US 44 231
Mao, Duli Sunnyvale, US 177 2468
Tai, Dyson H San Jose, US 68 408
Yang, Dajiang San Jose, US 50 253

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