The returning light signals are then superimposed on the original signal.
The triple-prism reflector can be installed by eye without the need for complex adjustmentsContents:1 Control unit with a transmitter, receiver and integrated power supply unit1 Fresnel lense on shaft1 Triple-prism reflector on shaft3 HF cables, 1 mAdditionally required:Optical BenchOptical Rider (2x)Stand Equipment. Emitted light pulses are returned by an internal reflector and by a triple-prism reflector placed a long distance from the light source.Comprises a compact housing containing a transmitter emitting short LED pulses, a photo receiver and a calibrated, oscillating quartz generator producing chronologically precise square-wave pulses.