Laminated glass windscreen intended to be used at the same time as a HUD system reflector
AssigneeSaint-Gobain Vitrage
InventorGerd Sauer
Life of this patent
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Abstract
A laminated safety glass windscreen, which can also be used as a reflector in a HUD system, comprises at least first and second panes and a thermoplastic intermediate layer which joins these panes together. The cross-section of the intermediate layer is in the shape of a wedge, decreasing in thickness from top to bottom. The thermoplastic intermediate layer may be composed of two sheets, one of which is provided with a colored filtering strip and has a wedged cross-section conditioned by the appearance of this filtering strip. The other sheet has a wedged cross-section such that the two sheets together have the prescribed convergence angle for using the windscreen as a reflector.
Claims20
A laminated glass windscreen having a taper angle for a reflector in a HUD system, comprising:
- (i) a first pane,
- (ii) a second pane, and
- (iii) a intermediate layer having a wedge-shaped cross-section, between said first and second panes, comprising
- (a) a first thermoplastic sheet comprising a tinted filtering strip at an upper edge of said first thermoplastic sheet, and
- (b) a second thermoplastic sheet, on said first thermoplastic sheet,
- wherein said second thermoplastic sheet has a wedge-shaped cross-section.
Dependencies are inferred from the claim text.