Importance

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Abstract

An impurity detection device includes a rotation unit, a light emitting unit, a light sensor unit, and an analysis unit. The rotation unit on which the bottle is loaded spins the bottle at a high speed and subsequently and instantaneously terminates spinning of the bottle. The light emitting unit generates light to pass through the bottle. The light sensor unit detects the light passing through the bottle, and captures a plurality of images of the light passed through the bottle after spinning of the bottle has been terminated and at different time intervals. The analysis unit receives the captured images from the light sensor unit, and compares the captured images to determine whether an impurity is present in the bottle.

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First Claim