High sensitivity improved photoelectric imaging device with a high signal to noise ratio
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United States of America Patent
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Apr 18, 1995
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N/A
app pub date -
Jun 28, 1993
filing date -
Jun 30, 1992
priority date (Note) -
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Abstract
A photoelectric transfer device includes at least one photoelectric transfer cell having the following elements: A photoelectric transfer element generates a photoelectric current based on a quantity of incident light. An amplifier element includes first FET and functions as a source follower in which a source voltage of the first FET is varied so as to follow up a gate voltage thereof. A read unit outputs, as an output signal, the source voltage of the source follower. The photoelectric transfer element is connected to a gate and source of the amplifier element so that a voltage between the gate and source of the amplifier element is applied across the photoelectric transfer element.
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