| 摘要 |
An automatic faucet control device comprising a solenoid valve for opening and closing the flow channel of a faucet, a light casting means 5 for casting infrared rays to a detection body, a light receiving means 6 for receiving infrared rays reflected by the detection body, a sensing decision means for deciding the presence or absence of the detection body by the output from the light receiving means 6, and solenoid valve control means for controlling the solenoid valve on the basis of the sensing signal due to the sensing decision means, wherein the light casting means 5 has a first polarizing means 7 allowing a polarized light component to pass therethrough, and the light receiving means 6 has a second polarizing means 8for allowing a polarized light component different from the light passing through the first polarizing means 7 to pass therethrough.
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