Image pickup apparatus including image pickup element provided with charge holding portion, control method and control program therefor, and storage medium
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United States of America Patent
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Sep 9, 2014
Grant Date -
Sep 20, 2012
app pub date -
Dec 3, 2010
filing date -
Dec 9, 2009
priority date (Note) -
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Abstract
An image pickup apparatus capable of reducing the influence of dark current noise to thereby obtain excellent image quality, even when the dynamic range is expanded under a photographing condition. In an image pickup element of a CMOS image sensor of the apparatus, a photo diode (PD) generates and accumulates electric charge according to an optical input, and a floating diffusion portion (FD) accumulates the electric charges. A charge holding portion (MEM) is disposed between PD and FD. A first transfer transistor selectively separates and connect between PD and MEM, and a second transfer transistor selectively separates and connects between MEM and FD. A system control circuit sets an operation mode to either a first operation mode in which PD and MEM are separated or a second operation mode according to photographing conditions for shooting an object in which PD and MEM are connected.
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