Opto-electronic device for measuring the position of objects in a monitoring area uses only two emitters and one receiver to produce three beam axes rather than three and three as has previously been the case

摘要

Device comprises at least two emitters (3,4) which emit at least two series of light pulses (2) which are then deflected by mirrors (12, 13, 11) in a deflection element (11) and guided to a receiver (5) so that the light impulses from the two emitters are displaced in time when they reach the receiver.