| 摘要 |
<p>The present invention relates to a kind of infrared sensing device mounted in the faucet at the basin, it comprises an infrared emitting tube for emitting the infrared light, an infrared receiving tube for receiving the infrared light, a circuit board on which the infrared emitting and receiving tubes are mounted, a housing for accommodating the infrared emitting and receiving tubes, an emitting lens for focusing the emitted infrared light, an receiving lens for focusing the reflected infrared light. The optical center of the emitting lens in biased to left or right, which enables the emitted light to devicate from the water column form the faucet, meanwhile, the optical center of the emitting lens is also biases up, which enables the emitted light to deviate from the basin. Compared with the prior arts, this infrared sensing; in the present invention has better sensing effects, which is economical, practical and costs lower.</p> |
