Abstract: A head-up display for a motor vehicle, including an image generating device, from which radiation beams of an image, linearly polarized by a polarizer 4 arranged on the image generating device on the light exit side, are guided via an imaging optical unit to a windscreen and are directed from the windscreen in the direction of a driver of the motor vehicle. A reflective linear polarizer is arranged in the beam path of the radiation beam between the image generating device and the windscreen, the polarization direction of which linear polarizer corresponds to the polarization direction of the radiation beam emitted by the image generating device, and which linear polarizer reflects differently polarized light radiating on the beam path from the windscreen to the image generating device.

Abstract: A head-up display for a motor vehicle, including an image generating device, from which radiation beams of an image, linearly polarized by a polarizer 4 arranged on the image generating device on the light exit side, are guided via an imaging optical unit to a windscreen and are directed from the windscreen in the direction of a driver of the motor vehicle. A reflective linear polarizer is arranged in the beam path of the radiation beam between the image generating device and the windscreen, the polarization direction of which linear polarizer corresponds to the polarization direction of the radiation beam emitted by the image generating device, and which linear polarizer reflects differently polarized light radiating on the beam path from the windscreen to the image generating device.

Abstract: The invention relates to a light-generating arrangement comprising a light-emitting semiconductor element provided with electric supply lines and a transparent light-directing element (2) which is arranged upstream of the semiconductor element in the emission direction at a distance therefrom and which is used for concentrating the light emitted by said semiconductor element in such a way that a light stream is formed. The light output surface (4) of the light-directing element (2) comprises a microstructure (6) consisting of a plurality of elevations and cavities deviating the trajectory of the light stream by <5°.

Abstract: The invention relates to a light-generating arrangement comprising a light-emitting semiconductor element provided with electric supply lines and a transparent light-directing element (2) which is arranged upstream of the semiconductor element in the emission direction at a distance therefrom and which is used for concentrating the light emitted by said semiconductor element in such a way that a light stream is formed. The light output surface (4) of the light-directing element (2) comprises a microstructure (6) consisting of a plurality of elevations and cavities deviating the trajectory of the light stream by <5°.