Image sensing apparatus and imaging system

Details Image sensing apparatus and imaging system Image sensing apparatus and imaging system

2011-07-26

2011-07-26

Lam, Hung H (Department: 2622)

Television

Camera, system and detail

Combined image signal generator and general image signal...

C348S294000, C257S115000

Reexamination Certificate

active

07986353

ABSTRACT:
An image sensing apparatus includes a pixel array including a light-shielded area where light-shielded pixels are arranged, and an effective area where non-light-shielded pixels are arranged. Each of the light-shielded pixels includes a first photoelectric conversion unit, a first charge-voltage converter which converts charges generated in the first photoelectric conversion unit into a voltage, and a first amplification transistor functioning as a MOS transistor which receives, at the gate, the voltage converted by the first charge-voltage converter. Each of the non-light-shielded pixels includes a second photoelectric conversion unit, a second charge-voltage converter which converts charges generated in the second photoelectric conversion unit into a voltage, and a second amplification transistor functioning as a MOS transistor which receives, at the gate, the voltage converted by the second charge-voltage converter. The gate capacitance of the first amplification transistor is larger than that of the second amplification transistor.

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