Abstract: The optical triangulation sensor is used for detecting objects in a monitoring area and comprises a transmitter emitting transmitted light beams and a receiver assembly with at least two receivers arranged side by side in a triangulation direction at a distance from the transmitter. Transmitted light beams of the transmitter are reflected by an object in the monitoring area and guided to the receiver assembly as received light beams. The optical triangulation sensor comprises a control and evaluation unit in which an object detection signal is generated depending on receiver signals of the receivers. There is a gap between the receivers. A receiving optical system is arranged upstream of the receiver assembly, by means of which system the received light beams are split into two received light bundles, wherein the spacing of the received light bundles is adapted to the size of the gap.

Abstract: The invention relates to an optoelectronic device (1) for detecting objects (2) in a monitoring range, one end of which comprises a transmitter (3) that emits transmitting light rays (8) and two receivers (4, 5) that receive light rays (10) and have respectively one first and second linear polarizing element (14, 15) installed in front, for which the polarization directions are such that they are turned relative to each other by an angle &agr; in the range of 45°<&agr;<135°, while the other end has a reflector unit (9), comprising a reflector (17) with a third linear polarizing element (16) installed in front, for which the polarization direction essentially coincides with the polarization direction of the first or second polarizing element (14, 15).