Image pickup apparatus
AssigneeCanon Kabushiki Kaisha
InventorsHidekazu Takahashi, Kazuhiro Saito
Life of this patent
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Abstract
An image pickup apparatus including a first photoelectric conversion circuit that has a photoelectric conversion area and is used for performing focus adjustment; a second photoelectric conversion circuit that has a photoelectric conversion area and is used for performing exposure amount adjustment; and a control circuit for controlling a power supply such that power is supplied to the first photoelectric conversion circuit and the second photoelectric conversion circuit independently, in which the first photoelectric conversion circuit and the second photoelectric conversion circuit are formed on a same semiconductor substrate.
Claims17
An image pickup apparatus comprising:
- a first photoelectric conversion circuit which has a photoelectric conversion area and is used for performing focus adjustment;
- a second photoelectric conversion circuit which has a photoelectric conversion area and is used for performing exposure amount adjustment;
- and
- a control circuit which controls a power supply such that power is supplied to said first photoelectric conversion circuit and said second photoelectric conversion circuit independently,
- wherein said first photoelectric conversion circuit and said second photoelectric conversion circuit are formed on a same semiconductor substrate.
An image pickup apparatus comprising:
- first and second photoelectric conversion circuits, each of which includes a photoelectric conversion area;
- and
- a control circuit which, according to an operation of a zoom lens for magnifying and reducing an object image to be picked up, switches between a mode in which power is not supplied to said first photoelectric conversion circuit and power is supplied to said second photoelectric conversion circuit and a mode in which power is supplied to said first and second photoelectric conversion circuits.
An image pickup apparatus comprising:
- first and second photoelectric conversion circuits, each of which includes a photoelectric conversion area and a logarithmic compression circuit;
- third and fourth photoelectric conversion circuits provided on one side of said first and second photoelectric conversion circuits, each of which has a plurality of photoelectric conversion areas and a reading-out circuit for reading out peak signals of the plurality of photoelectric conversion areas;
- fifth and sixth photoelectric conversion circuits provided on the other side of said the first and second photoelectric conversion circuits, each of which has a plurality of photoelectric conversion areas and a reading-out circuit for reading out peak signals of the plurality of photoelectric conversion areas;
- and
- a control circuit which controls a power supply such that power is not supplied to said first, third, and fifth photoelectric conversion circuits and power is supplied to said second, fourth, and sixth photoelectric conversion circuits,
- wherein said first to sixth photoelectric conversion circuits are formed on a same semiconductor substrate.
An image pickup apparatus comprising:
- a first photoelectric conversion circuit including a photoelectric conversion area and a logarithmic compression circuit;
- a second photoelectric conversion circuit that is provided on one side of said the first photoelectric conversion circuit and has a plurality of photoelectric conversion areas and a reading-out circuit for reading out peak signals of the plurality of photoelectric conversion areas;
- and
- a control circuit for controlling a power supply such that power is supplied to said first photoelectric conversion circuit and said second photoelectric conversion circuit independently,
- wherein said first and second photoelectric conversion circuits are formed on a same semiconductor substrate.
Dependencies are inferred from the claim text.