OPTOELECTRONIC SENSOR AND METHOD FOR DETECTING AN OBJECT

The invention relates to a photoelectric sensor and a method for detecting an object. The photoelectric sensor used for detecting the object in a monitoring area (20), comprises a light emitter (12) which emits emission light (16); a movable deflection unit (18) that periodically deflects the emitted light; a light receiver (28) that generates a reception signal from the emitted light (24) diffusely reflected by the object in the monitored area; and a control and evaluation unit (36) that detects the information about the object in the monitoring area on the basis of the received signal, wherein a shielding device (22) is arranged around the optical path of the emitted light in order to suppress the crosstalk of the emitted light onto the light receiver. Herein, a deflecting element (30, 44) is arranged in the beam path of the diffusely reflected emitted light in order to deflect a portion of the diffusely reflected emitted light (24a, 24b) to the light receiver, and the portion of thediffusely reflected emitted light may strike the shielding device (22) without the deflecting element.