Compact and energy-efficient head-up display
AssigneeCommissariat A L'energie Atomique Et Aux Energies Alternativees
InventorUmberto Rossini
Life of this patent
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Abstract
The invention relates to a head-up display comprising a group of sub-screens (241, 242, . . . , 245), the positions and dimensions of which are defined according to the length of the optical path (D) and the maximum authorised range of movement (B1) in a plane that is perpendicular to the optical path and located at a distance equal to the length of the optical path, such that the information projected by the group of sub-screens is seen over the entire authorised movement range.
Claims20
A head-up display comprising an assembly of sub-screens defining together an image to be displayed, each sub-screen being associated with an optical sub-system, the sub-screens being placed in the object focal plane of the optical sub-systems, the sub-screens being defined at the surface of a substrate and being separate, each sub-screen having an extension smaller than that of the associated optical sub-system, the positions and the dimensions of the sub-screens being defined according to the length of the optical path and to a maximum authorized motion amplitude in a plane perpendicular to the optical axis and located at a distance equal to the length of the optical path, so that the image projected by the sub-screen assembly can be seen on the entire authorized motion amplitude.
Dependencies are inferred from the claim text.