Vehicle assembly comprising a radar sensor and a light-emitting signalling module
AssigneeValeo Vision
InventorsPierre Albou, Pierre Renaud
Life of this patent
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Abstract
The invention relates to a vehicle assembly including a radar sensor configured to emit radar waves over a range of wavelengths, a luminous module. The luminous module including a sub-layer and a layer of patterns forming a sub-wavelength structured dielectric element with a repetition period of the patterns that is less than a quarter of a wavelength of the range, with the total thickness of the luminous module is equal to m times a wavelength of the range, the whole being divided by twice the equivalent refractive index of the sub-layer and of the layer of patterns, times the cosine of a refracted angle corresponding to an angle of incidence of the radar waves, where m is an integer.
Claims13
A vehicle assembly for a vehicle, the vehicle assembly comprising:
- a radar sensor configured to emit a number of radar waves over a range of wavelengths;
- a luminous module configured to perform a signalling function where the luminous module includes a sub-layer and a layer of patterns;
- where the layer of the patterns forms a sub-wavelength structured dielectric element,
- a repetition period of the patterns being less than one quarter of one wavelength of the range, where a total thickness of the luminous module is equal to “m” times a wavelength of the range of the wavelengths that radar waves are transmitted;
- the one wavelength being divided by twice an equivalent refractive index of the sub-layer and of the layer of the patterns times a cosine of a refracted angle corresponding to an angle of incidence of the number of radar waves, where “m” is a positive integer.
A luminous module disposed facing a radar sensor configured to emit radar waves over a range of wavelengths, the luminous module being configured to perform a signalling function and comprising:
- a sub-layer and a layer of patterns, where the layer of the patterns forms a sub-wavelength structured dielectric element;
- a repetition period that is less than one quarter of one wavelength of the range of wavelengths that radar waves are transmitted, and
- where a total thickness of the luminous module is equal to “m” times the one wavelength, where “m” is a positive integer number;
- the one wavelength is divided by twice an equivalent refractive index of the sub-layer and of the layer of the patterns times a cosine of a refracted angle corresponding to an angle of incidence of the radar waves, where “m” represents a positive integer.
Dependencies are inferred from the claim text.