A mounting arrangement for fastening a sensor element to a windscreen of a motor vehicle includes a main support, which has a receptacle for the sensor element. The sensor element has a cross-section in the shape of a segment of a circle. The receptacle of the main support has a clear receptacle opening which is likewise in the shape of a segment of a circle and the dimensions of which match the sensor element.

A rain and temperature sensing module including a housing having a cover plate formed of a transparent material, a printed circuit board disposed within the housing and having a light emitter, a light receiver, and a temperature sensing element disposed thereon, a transparent compound disposed within the housing and covering the light emitter, the light receiver, and the temperature sensing element, the transparent compound filling a space between the printed circuit board and the cover plate, wherein the transparent compound has a refractive index that is substantially equal to a refractive index of the cover plate, and wherein the transparent compound provides a thermally conductive medium between the cover plate and the temperature sensing element.

A rain and temperature sensing module including a housing having a cover plate formed of a transparent material, a printed circuit board disposed within the housing and having a light emitter, a light receiver, and a temperature sensing element disposed thereon, a transparent compound disposed within the housing and covering the light emitter, the light receiver, and the temperature sensing element, the transparent compound filling a space between the printed circuit board and the cover plate, wherein the transparent compound has a refractive index that is substantially equal to a refractive index of the cover plate, and wherein the transparent compound provides a thermally conductive medium between the cover plate and the temperature sensing element.

A temperature sensor device for sensing a temperature of a windshield of a vehicle includes a single printed circuit board having a circuitry, a temperature sensor mounted on the printed circuit board, and a thermally conductive pad attached to the temperature sensor. The thermally conductive pad is arranged to thermally and mechanically directly contact the windshield.

A rain sensor includes: a substrate, a first sensor that is disposed on a first surface of the substrate and that senses a sound signal; a second sensor disposed on a second surface of the substrate and attached to windshield glass of the vehicle to sense a capacitance change; and a processor that determines precipitation, based on at least one of the sound signal or the capacitance change.

A sensing device for a windshield includes an attachment member attachable to a surface of the windshield and a sensing element having a transducer. The attachment member has a pressing device. The pressing device applies a pressure on or over the transducer when the attachment member is attached to the surface and presses the transducer against the surface.

A sensor apparatus for coupling to a pane of glass, in particular to the windscreen of a motor vehicle, having at least one coupling layer for the optical coupling of the sensor apparatus with the windscreen. The coupling layer is constructed with multiple layers, at least two layers of the coupling layer consist of coupling materials that are different from each other, and the layer provided for placement on the pane of glass has a weaker capacity for adhesion to the glass than at least one further layer of the coupling layer.

In a housing, particularly a housing for a sensor apparatus, with a retaining clip for attaching the housing to an object, particularly to the insider of a motor vehicle windscreen. The retaining clip is connected to an outer surface of the housing, it is provided as essential that at least one outer surface has a clamping projection, that the retaining clip has a fastening region, that the fastening region has at least two clamping sections, and that a non-positive connection is formed between the clamping projection and the clamping sections. Further aspects relate to a sensor apparatus with a housing and a motor vehicle with a housing.

A rain and temperature sensing module including a housing having a cover plate formed of a transparent material, a printed circuit board disposed within the housing and having a light emitter, a light receiver, and a temperature sensing element disposed thereon, a transparent compound disposed within the housing and covering the light emitter, the light receiver, and the temperature sensing element, the transparent compound filling a space between the printed circuit board and the cover plate, wherein the transparent compound has a refractive index that is substantially equal to a refractive index of the cover plate, and wherein the transparent compound provides a thermally conductive medium between the cover plate and the temperature sensing element.

A droplet sensor system is configured to detect the presence of droplets or other foreign bodies on the surface of a window. The sensor system emits light rays that are coupled into the window, where the window serves as a waveguide that guides the confined electromagnetic radiation across the window. Foreign bodies present on the surface of the glass outcouples a subset of the light as it propagates across the window, attenuating the power of outcoupled light measured at a photodetector mounted near an edge of the window. The system initiates a notification or a control action in response to detecting this attenuation of power due to outcoupling of the propagating light by foreign bodies.