State determination method and state determination device
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United States of America Patent
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May 7, 2019
Grant Date -
Jun 9, 2016
app pub date -
Jul 1, 2014
filing date -
Jul 2, 2013
priority date (Note) -
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Abstract
In a method of determining a deterioration state of an object, the deterioration state of the object is determined by determining whether a calculated value reaches a state determination threshold value or not, the calculated value utilizing at least one of brightness and a color component value calculated from a detection value detected by an optical sensor. The optical sensor includes an examination section containing liquid, a light emitting element emitting detection light toward the examination section, and a light receiving element detecting color information of the detection light traveled through the liquid.
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