Patent ID: 6501538
Filing Date: 2002-12-31
Classification: G01C,G01S

Abstract:
An optoelectronic arrangement for determining a height profile of an object, comprising:a range finder having an output and including a transmitter that emits light rays and a receiver that receives light rays; a deflection unit including a transmitting optic arranged downstream of the transmitter and an actuator that periodically deflects the transmitting optic in order to periodically deflect the transmitted light rays and guide them over a surface of the object; a receiving optic arranged in front of the receiver and laterally spaced a distance from the transmitting optic so that a beam axis of the transmitted light rays that penetrate the transmitting optic and a beam axis of received light rays that penetrate the receiving optic pass at a distance to each other, said distance being sufficient to avoid interference between the transmitted light rays and received light rays; and an evaluation unit, coupled to the output of the range finder and the deflection unit, determining the height profile of the object from range values at the range finder output and associated deflection angles for the transmitted light rays, wherein the receiving optic and the transmitting optic are arranged for being jointly deflected by the actuator.