Back to results
US 2006/0232853 A1Published application
Projection unit for a head-up display
AssigneeCarl Zeiss Jena GmbH
InventorsHans-Juergen Dobschal, Arne Troellsch, Dirk Jahn
Life of this patent
Estimating the term…
Abstract
The invention is directed to a projection unit for a head-up display comprising an image generator and a first mirror and second mirror for optical imaging which are arranged in a housing one after the other in the light propagation direction in such a way that the beam path is folded twice. It is wherein one of the mirrors has a light-scattering surface shape, the other mirror h/as a light-collecting surface shape, and the two mirrors combined have a common focal point on the image generator.
Claims11
A projection unit for a head-up display comprising:
- an image generator, a first mirror and a second mirror for optical imaging;
- said image generator, first mirror and second mirror being arranged in a housing one after the other in the light propagation direction in such a way that the beam path is folded twice;
- one of said mirrors having a light-scattering surface shape, the other mirror having a light-collecting surface shape;
- and
- said two mirrors combined having a common focal point on the image generator.
2 more elements
Dependencies are inferred from the claim text.