Importance

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Abstract

Provided is a culture apparatus including: a culture vessel; a light source; a first optical sensor; a transmitted light intensity ratio measurement unit. The cell density calculation unit is configured to, when the cell density calculation unit calculates the cell density at a certain timing during the cell culture: correct the intensity of the light exiting from the culture solution in a state in which the cells are suspended and being measured by the first optical sensor at the certain timing through use of the transmitted light intensity ratio measured at the certain timing. Further, the cell density calculation unit is configured to calculate the cell density at the certain timing based on the corrected intensity of the light and an equation of a calibration curve indicating a relationship between a cell density and an intensity of light exiting, the calibration curve being created in advance.

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First Claim