Photoelectric conversion apparatus having drive detection capabilities
AssigneeCanon Kabushiki Kaisha
InventorNoriyuki Kaifu
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Abstract
A photoelectric conversion apparatus alternate-currently separates a reference electrical potential of a photoelectric conversion unit having the drive detection circuits 102, 202 for driving the sensor substrates 101, 201 of which a plurality of photoelectric conversion elements are arranged on an insulating substrate and the photoelectric conversion elements, and for detecting signals from the photelectric conversion elements, and a reference electrical potential of the control unit 3 for controlling the the photoelectric conversion unit. As a result of this, a reduction of a noise could be achieved.
Claims16
A photoelectric conversion apparatus, comprising:
- an insulating substrate comprising a photoelectric conversion unit, said photoelectric conversion unit comprising a plurality of photoelectric conversion elements arranged on said insulating substrate and a drive detection circuit for driving the photoelectric conversion elements, and for detecting signals from said photoelectric conversion elements;
- and
- a control unit for controlling said photoelectric conversion unit,
- wherein a reference electrical potential of said photoelectric conversion unit and a reference electrical potential of said control unit are alternating-currently separated.
A photoelectric conversion apparatus, comprising:
- a photoelectric conversion unit comprising a plurality of photoelectric-conversion elements, and a drive detection circuit being driven with a first reference electrical potential for driving said photoelectric conversion elements, and for obtaining outputs from said photoelectric conversion elements;
- and
- a control unit comprising a circuit, being provided separately from said photoelectric conversion unit, controlling the photoelectric conversion unit, and being driven with a second reference electrical potential,
- wherein, said first reference electrical potential and said second reference electrical potential are alternating-currently separated.
Dependencies are inferred from the claim text.