Process for obtaining a light-scattering assembly in particular for a motor vehicle

A light-scattering assembly for a motor vehicle, the light-scattering assembly comprising:

• a first section forming a transparent scattering screen having microstructures obtained by injection molding and configured to scatter light emitted by a light-emitting source and passing through the first section;
• and
• a second section, the second section being devoid of microstructures obtained by injection molding, the second section comprising an external region extending around at least some of the perimeter of the first section, the external region extending beyond a peripheral portion of the first section and away from the first section,
• the first and second sections making contact with each other and being integral with each other, the first and second sections facing the light-emitting source and being interposed on the optical path of at least some of the light emitted from the light-emitting source towards an output lens and arranged between the light-emitting source and the output lens, wherein
• the microstructures are arranged in the first section on a first face of the first section and the first section makes contact with the second section only via a second face of the first section opposite the first face, the first face of the first section facing the output lens, the output lens being on the opposite side of the light-emitting source relative to the first section, wherein
• the light-emitting source is disposed along a direction perpendicular to the transparent scattering screen having microstructures and the transparent scattering screen receives light directly from the light-emitting source.

A light-emitting device for a motor vehicle, the light-emitting device comprising:

• a light-emitting source for emitting light;
• and
• a light-scattering assembly, the light-scattering assembly comprising:
• a first section forming a transparent scattering screen having microstructures obtained by injection molding and configured to scatter light emitted by the light-emitting source and passing through the first section;
• and
• a second section, the second section being devoid of microstructures obtained by injection molding, the second section comprising an external region extending around at least some of the perimeter of the first section, the external region extending beyond a peripheral portion of the first section and away from the first section,
• the first and second sections making contact with each other and being integral with each other, the first and second sections facing the light-emitting source and being interposed on the optical path of at least some of the light emitted from the active light-emitting source towards an output lens and arranged between the light-emitting source and the output lens, wherein
• the microstructures are arranged in the first section on a first face of the first section and the first section makes contact with the second section only via a second face of the first section opposite the first face, the first face of the first section facing the output lens, the output lens being on the opposite side of the light-emitting source relative to the first section, wherein
• the light-emitting source is disposed along a direction perpendicular to the transparent scattering screen having microstructures and the transparent scattering screen receives light directly from the light-emitting source.