HEAD-UP DISPLAY FOR A MOTOR VEHICLE
1 Assignment
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Accused Products
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.
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Citations
19 Claims
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1-7. -7. (canceled)
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8. A head-up display for a motor vehicle, comprising:
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an image generating device, from which beams of an image are guided; a polarizer arranged on a light-exit side on the image generating device configured to linearly s-polarize the beams of the image; an imaging optical unit configured to guide the linearly s-polarized beams of the image to a windscreen of the motor vehicle, wherein the linearly s-polarized beams of the image are directed from the windscreen in a direction of a driver of the motor vehicle; a reflecting linear polarizer arranged between the image generating device and the windscreen, a polarization direction of the reflecting linear polarizer corresponds to a polarization direction of the beams emitted by the image generating device and which reflects light that travels along a beam path from the windscreen to the image generating device that has a different polarization. - View Dependent Claims (9, 10, 16, 17, 18)
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11. A head-up display for a motor vehicle, comprising:
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an image generating device, from which beams of an image are guided, a polarizer arranged on a light-exit side on the image generating device configured to linearly polarized the beams; an imaging optical unit configured to guide the beams to a windscreen, wherein the beams are directed from the windscreen in a direction of a driver of the motor vehicle; a reflecting linear polarizer arranged between the image generating device and the windscreen, the polarization direction of which is orientated perpendicular with respect to the polarization direction of the beams emitted by the image generating device and which reflects this light and which absorbs or transmits light that travels along a beam path from the windscreen to the image generating device that has a different polarization. - View Dependent Claims (12, 13, 14, 15, 19)
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Specification