| 摘要 |
The present invention discloses a distance detecting sensor, comprising: a housing, a focusing lens, a circuit board, as well as a transmitter device for transmitting infrared light rays and a receiver device for receiving and sensing the reflected infrared light rays, wherein the housing comprises an elongated main body and two apertures located on a top surface of the main body; the lens comprises a transmitting lens and a receiving lens located at positions of the two apertures of the housing; the circuit board is received in the main body of the housing and located below the lens; the transmitter device and the receiver device are positioned directly below the transmitting lens and the receiving lens, wherein the transmitter device is an infrared light emitting diode and the receiver device is a distance detecting sensing module. The transmitter device and the receiver device are installed on the lower side of the circuit board; and the circuit board is provided thereon, between the transmitting lens and the transmitter device and between the receiving lens and the receiver device, with first and second via holes through which the transmitted light rays and the received light rays can pass, respectively. The distance detecting sensor of the present invention tends to be miniaturized and is easily produced and manufactured. |
