image sensor 7 i e laterally outside sensitive region 10 for a satisfactory alignment that provides high image definition a compensation of tilting takes place on the one hand and focusing on the other the focusing is implemented in the usual manner by adjusting objective 2 in tube 4 3 in its length i e an adjustment in assembly direction m of fig1 which thus corresponds to an axis of symmetry 14 of tube 4 to analyze the image definition on account of the image shell tilting or tilting the axes of symmetry must be considered objective 2 has an optical axis 3 which generally does not extend in parallel with lens barrel 2 a optical axis 3 in particular may be defined by tolerances in the assembly of objective 2 together with outer lens barrel 2 a and inner spacer rings and lenses in addition to possible lens errors as a result optical axis 3 of objective 2 generally does not run parallel to lens barrel 2 a or its outer surface or axis of symmetry image sensor 7 has a surface normal 13 which stands perpendicularly on sensitive region 10 of sensor surface 7 4 in an optimal alignment these three axes or straight lines i e axis of symmetry 14 optical axis 3 and surface normal 13 coincide slight lateral deviations generally lead only to imaging of the image on sensitive region 10 at a corresponding lateral shift which normally is not particularly relevant especially when detecting a vehicle environment focusing i e the relative position in the longitudinal direction is likewise not very problematic and achieved by a longitudinal adjustment of objective 2 inside tube 4 3 especially in the usual manner by detecting a test pattern or reference.