LIGHT BARRIER

摘要

The invention relates to a light barrier comprising an emission device (2) for sending electromagnetic radiation along a first path (6), a diversion device for diverting the emitted electromagnetic radiation from the first path (6) to a second path (12), and a receiving device (16) for receiving the electromagnetic radiation. Said light barrier is characterised in that the diversion device is designed to divert into a correct position in relation to a plane containing the first path (6) and the second path (12).