| 摘要 |
An automatic faucet contains a body including a spout; a spray head mounted on the spout to be pulled outward or retracted inward; an optical detecting device fixed on the spout to detect a hand of a user and to transmit a digital signal; wherein between a transmitting direction of an infrared ray and a water flowing direction of the spray head is formed an angle, and the angle is between 150 to 190 degrees; a controlling device to receive the digital signal of the optical detecting device and to control the water to flow out of the spray head.
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