Infrared sensor

Abstract

An infrared sensor includes a housing, a circuit board, an infrared emitting device, and an infrared receiving device. The circuit board receives in the housing and includes an upper surface and a lower surface. The upper surface and the lower surface are opposite sides of the circuit board. The infrared emitting device is arranged on the upper surface of the circuit board and includes an emitter which is configured to emit infrared signals. The infrared receiving device is arranged on the lower surface of the circuit board and includes a receiver which configured to receive reflected infrared signals reflected by an object. The receiver is offset relative to the emitter, and the circuit board converts an infrared voltage value of the reflected infrared signals to determine a distance of the object.

Dependencies are inferred from the claim text.