| 摘要 |
In a motor vehicle with a light source (3) which can be switched on, is arranged at its rear and emits a light preferably in the red region of the spectrum, the light source (3) is to be a headlight which transmits a light beam (5) in a directed fashion. At the same time, the light beam (5) is to extend at an angle (w) with respect to the carriageway (6). <IMAGE>
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