Optical system for proximity detection in motor vehicles, uses control unit for evaluating reflection objects within observation zone

摘要

The optical system has an optical scanner (1) and several sensor units (2,20) arranged at different positions in/on a motor vehicle. A measurement unit (11) generates an optical transmission signal (111) as the basis of the optical transmission radiation (23) and for detection of an optical reception signal. A control unit (12) evaluates a certain reflection object in the observation zone on the basis of a transfer time measurement of the reflection signal. An opto-mechanical scanning unit (13) deflects the optical transmission signal (111) and the optical reception signal (112) and selecting one of the sensor unit (2,20).