| 摘要 |
The invention relates to a device for identifying rain on a pane (2). The device comprises a camera (1), an illumination source (3) for emitting light (h, o, p) and a diffusion element (6). Light (h, o, p) emitted by the illumination source (3) emerges as light sheet (s) from the diffusion element (6). The camera (1), the illumination source (3) and the diffusion element (6) are designed and arranged in such a way that the camera (1) can detect a signal from the light (h, o, p) or an imaging (i1, i2) of the light sheet (s) which is emitted by the illumination source (3), impinges on the pane (2) through the diffusion element (6) and is reflected by the pane. In particular, in this case, the signal detected by the camera (1) or the light sheet(s) (i1, i2) correlate(s) with light from the illumination source (3) which is reflected or scattered at the inner side (2.1) and/or outer side (2.2) of the pane and/or at a raindrop. |
