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Visual Laser Radar   The 1D Spot Measurement System LARA (”visual laser radar”) is an integral part of all Z+F systems. Basic principle of the LARA Systems is the transmission of laser light. The environment is illuminated point by point and the light reflected from the object is detected. With the help of the so-called phase-difference method the following values can be determined, independent of pre- vailing light conditions: range values (distance to the object)  reflectance values (reflectivity of the object)  Range and reflectance values are measured by the same receiver at the same time so that they directly correspond to one single data point in space (pixel by pixel correspondence).   Beam Deflection Unit   By combining the LARA Measurement System with a (rotating) deflection mirror you also achieve horizontal and vertical angle measurements with which XYZ coordi- nates can be allocated to the individual measured point. All data gained in this way can be directly allocated to one specific point so that the results can be represen- ted in a range image (in grey levels or colour-coded), a reflectance image or combined in a so-called 3D point cloud.