Illumination for the detection of raindrops on a window by means of a camera

US9720132B2 · US · B2

Patent metadata
FieldValue
Publication numberUS-9720132-B2
Application numberUS-201314437632-A
CountryUS
Kind codeB2
Filing dateDec 19, 2013
Priority dateJan 11, 2013
Publication dateAug 1, 2017
Grant dateAug 1, 2017

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Abstract

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A device for detecting rain includes a camera and a lighting source for emitting visible light onto a window. The camera and the lighting source are configured and arranged in such a way that the camera can detect a signal of the visible light which the lighting source emits onto the window. The signal which is detected by the camera correlates with visible light of the lighting source, which visible light is reflected or scattered at the inner face of the window or outer face of the window and/or at the raindrop. The visible light passes through a shutter device which causes the light to be blocked or highly attenuated in a predefined direction perpendicular to the illumination direction of structures of the shutter device. In contrast, the light in the direction perpendicular to the predefined direction and to the illumination direction can propagate virtually unimpeded through the shutter device.

First claim

Opening claim text (preview).

The invention claimed is: 1. A device for detecting rain on a window of a vehicle, the device comprising: a camera; a lighting source for emitting visible light in an illumination direction onto a window of the vehicle; and a shutter device having a grille with a plurality of slats between the lighting source and the window, the slats directing the visible light in the illumination direction onto the window while blocking or attenuating the visible light in directions other th…

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What does patent US9720132B2 cover?
A device for detecting rain includes a camera and a lighting source for emitting visible light onto a window. The camera and the lighting source are configured and arranged in such a way that the camera can detect a signal of the visible light which the lighting source emits onto the window. The signal which is detected by the camera correlates with visible light of the lighting source, which v…
Who is the assignee on this patent?
Conti Temic Microelectronic Gmbh
What technology area does this patent fall under?
Primary CPC classification G01N21/43. Mapped technology areas include Physics.
When was this patent published?
Publication date Tue Aug 01 2017 00:00:00 GMT+0000 (Coordinated Universal Time) (B2). Legal status and post-grant events are not shown on this page.
What related patents are in patentsdb?
We list 8 related publications on this page (citations in our corpus or others sharing the same primary CPC).