IMAGE PICKUP APPARATUS
First Claim
1. An image pickup apparatus comprising:
- a photographing lens that forms a subject image;
an image pickup device having an image pickup plane on which pixels for accumulating an amount of charge corresponding to a light quantity of light received via the photographing lens are two-dimensionally arranged;
a mechanical rear curtain shutter that runs along the image pickup plane to move from a state in which light from the photographing lens reaches the image pickup plane to a shaded state;
a reset section that divides the image pickup plane into a plurality of pixel groups along the running direction ahead of running of the mechanical rear curtain shutter and collectively resets charge of all pixels included in one pixel group sequentially at timing per pixel group according to running characteristics of the mechanical rear curtain shutter; and
an image processing section that corrects a signal level of an image signal read from the image pickup device so as to approximate to an image signal obtained when the pixels have a same exposure time based on the running characteristics of the mechanical rear curtain shutter and reset timing for each pixel group by the reset section.
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Accused Products
Abstract
The present invention is an image pickup apparatus including an image pickup device having an image pickup plane on which pixels are two-dimensionally arranged, a mechanical rear curtain shutter that runs along the image pickup plane to control passage/shielding of light, a system control section that divides the image pickup plane into a plurality of pixel groups along the running direction ahead of running of the mechanical rear curtain shutter and collectively resets charge of all pixels in one pixel group sequentially at timing per pixel group according to running characteristics of the mechanical rear curtain shutter, and an image processing section that corrects a signal level of an image signal read from the image pickup device to approximate to an image signal obtained when the pixels have a same exposure time based on the running characteristics of the mechanical rear curtain shutter and reset timing for each pixel group.
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Citations
4 Claims
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1. An image pickup apparatus comprising:
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a photographing lens that forms a subject image; an image pickup device having an image pickup plane on which pixels for accumulating an amount of charge corresponding to a light quantity of light received via the photographing lens are two-dimensionally arranged; a mechanical rear curtain shutter that runs along the image pickup plane to move from a state in which light from the photographing lens reaches the image pickup plane to a shaded state; a reset section that divides the image pickup plane into a plurality of pixel groups along the running direction ahead of running of the mechanical rear curtain shutter and collectively resets charge of all pixels included in one pixel group sequentially at timing per pixel group according to running characteristics of the mechanical rear curtain shutter; and an image processing section that corrects a signal level of an image signal read from the image pickup device so as to approximate to an image signal obtained when the pixels have a same exposure time based on the running characteristics of the mechanical rear curtain shutter and reset timing for each pixel group by the reset section. - View Dependent Claims (2, 3, 4)
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Specification