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US 12,044,645 B2Granted
Display device with fitting detection device and method for operating a fitting detection, an exterior mirror and a motor vehicle
AssigneeMotherson Innovations Company Limited
InventorRomeo Wieczorek
Life of this patent
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Abstract
A display device, particularly for an exterior mirror of a motor vehicle, comprising a display means that comprises a lighting means, characterized in that the display device comprises a moisture detection apparatus comprising a sensor device, the moisture detection apparatus being designed to at least partially detect light emitted by the display means and light reflected by moisture.
Claims26
A display device for an exterior mirror of a motor vehicle, comprising
- at least one display means, the at least one display means being (i) operable in a normal operation to generate a display signal that is viewable in a symbol region of the exterior mirror to provide information to a driver, and (ii) operable to emit light for use in detecting moisture on the display device,
- the at least one display means comprising at least one lighting means for irradiating at least one element that is at least partially transparent at least for light of a specific wavelength;
- and
- at least one moisture detection apparatus comprising at least one sensor device, the at least one moisture detection apparatus being configured to at least partially detect light emitted by the at least one display means and light absorbed and partially reflected by moisture that is present on at least a portion of the at least one element, wherein the at least one lighting means is configured to emit light having a wavelength spectrum comprising a plurality of wavelengths, wherein the moisture absorbs light having a wavelength within a first portion of the wavelength spectrum and reemits light having a wavelength within a second portion of the wavelength spectrum, the second portion differing from the first portion;
- and
- wherein the at least one moisture detection apparatus is configured to detect a presence of the moisture based on a difference between the first portion and the second portion of the wavelength spectrum.
3 more elements
A display device for an exterior mirror of a motor vehicle, comprising:
- at least one display means comprising at least one lighting means for irradiating at least one element that is at least partially transparent at least for light of a specific wavelength, wherein the at least one lighting means is configured to emit light having a wavelength spectrum comprising a plurality of wavelengths;
- at least one filter configured to filter light to a wavelength spectrum in a non-visible light range;
- and
- at least one moisture detection apparatus comprising at least one sensor device, the moisture detection apparatus being configured to detect light that is emitted from the at least one display means, and absorbed and partially reflected by moisture present on at least a portion of the at least one element, and filtered by the at least one filter,
- wherein the moisture absorbs light having a wavelength within a first portion of the wavelength spectrum and reemits light having a wavelength within a second portion of the wavelength spectrum, the second portion differing from the first portion, and
- wherein the moisture detection apparatus is configured to detect a presence of the moisture based on a difference between the first portion and the second portion of the wavelength spectrum.
3 more elements
Dependencies are inferred from the claim text.