Abstract: An apparatus and a method are for detecting precipitation on a windscreen of a motor vehicle. A camera device records a first image and thereafter a second image. A comparison device produces a first comparison image by comparing the first image with the second image. An image detection device identifies objects on the first comparison image, and determines motion of the objects, to detect whether there is precipitation on the windscreen.

Abstract: The invention relates to an apparatus and a method for detecting precipitation on a windscreen for a motor vehicle, the apparatus comprising a camera device, which is designed such that it records a first image at a first moment and a second image at a second moment following the first moment, a comparison device, which is designed such that it produces a first comparison image by comparing the first image with the second image, and an image detection device, which is designed such that it identifies objects on the first comparison image.

Abstract: The invention relates to a device and a method for detecting rain (4). The device for detecting rain comprises a camera with an image sensor (5) and colour filters for pixels of the image sensor in a number of primary filter colours (R; G; B) and an illumination source (3) for producing monochromatic light (h) of a first primary filter colour. The monochromatic light is provided in a visible wavelength range which is transmitted by the first primary filter colour and blocked by the other primary filter colours. The camera and the illumination source (3) are designed and arranged in such a manner that the camera can detect a signal from the monochromatic light (r1, r2?) with which the illumination source illuminates a pane (2).