A device for detecting rain on a pane includes a camera, a lighting source for emitting light and a diffusion element. The light emitted by the lighting source is diffused through and emerges as a light sheet from the diffusion element. The camera, the lighting source and the diffusion element are configured and arranged so that the camera can detect a signal from an image of the light sheet that is emitted by the lighting source, diffused through the diffusion element, impinges on the pane and is reflected or scattered by the pane and/or a raindrop on the pane. The signal detected by the camera is evaluated to detect whether there is rain on the pane.
Illumination for detecting raindrops on a pane by means of a camera
2019-07-16
Patent
Elektronische Ressource
Englisch
IPC: | G06K Erkennen von Daten , RECOGNITION OF DATA / B60S SERVICING, CLEANING, REPAIRING, SUPPORTING, LIFTING, OR MANOEUVRING OF VEHICLES, NOT OTHERWISE PROVIDED FOR , Warten, Reinigen, Instandsetzen, Unterstützen, Anheben oder Rangieren von Fahrzeugen, soweit nicht anderweitig vorgesehen / G01N Untersuchen oder Analysieren von Stoffen durch Bestimmen ihrer chemischen oder physikalischen Eigenschaften , INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES / H04N PICTORIAL COMMUNICATION, e.g. TELEVISION , Bildübertragung, z.B. Fernsehen |
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