Light detecting apparatus and fluid measuring apparatus
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United States of America Patent
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Jan 19, 2016
Grant Date -
Apr 11, 2013
app pub date -
Jun 24, 2010
filing date -
Jun 24, 2010
priority date (Note) -
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Abstract
A light detecting apparatus includes: a first photoelectric conversion element unit (110) and a second photoelectric conversion element unit (120) each of which converts input light to an electric current and output it; an optical current transducer unit (100) for outputting, as a detected current, a differential current between an electric current outputted by the first photoelectric conversion element unit and an electric current outputted by the second photoelectric conversion element unit; and a first current/voltage converting unit (200) for amplifying the detected current outputted from the optical current transducer unit, converting it to a voltage signal, and outputting the voltage signal.
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