| 摘要 |
The present invention relates to a projection assembly for a head-up display (HUD), the assembly at least comprising: - a vehicle windscreen (1) comprising an outer pane (2) and an inner pane (3) interconnected by means of a thermoplastic intermediate layer (4), and an upper edge (O), a lower edge (U) and an HUD region (B), wherein the thickness of the thermoplastic intermediate layer (4) in its vertical extension between the upper edge (O) and the lower edge (U) is variable, at least in the HUD region (B) and has a wedge angle (α), and wherein the vehicle windscreen (1) has an installation angle ranging between 55° and 75° and both the outer pane (2) and the inner pane (3) have a maximum thickness of 5 mm; and - a projector (5) that is oriented towards the HUD region (B) and generates a virtual image (7), which can be viewed by an observer (6), at a projection distance (d) of at least 5 m. The windscreen (1) in the HUD region (B) has a vertical radius of curvature (R) of at least 6 m and the maximum wedge angle (α) is less than or equal to 0.3 mrad. |
