THERMOPLASTIC FILM FOR A LAMINATED-GLASS PANE HAVING A NON-LINEAR CONTINUOUS WEDGE INSERT IN THE VERTICAL DIRECTION IN SOME SECTIONS

摘要

The invention relates to a thermoplastic film (F) for a laminated-glass pane (1) having a non-linear continuous wedge insert in the vertical direction in some sections, wherein, in the vertical direction, the laminated-glass pane (1) is further from an observer at a lower end than at an upper end from the perspective of the observer, wherein, in the laminated-glass pane (1) equipped with the thermoplastic film, the thermoplastic film (F) is located between two glass layers (GS₁, GS₂), wherein the thermoplastic film (F) has a continuous non-linear wedge angle profile at least in some sections in the vertical direction, wherein the non-linear wedge angle profile has a first section (A₁), which has a wedge angle that is constant or that is variable at least in some sections in order to avoid double images in transmission, wherein the non-linear wedge angle profile additionally has a second section (A₂), which adjoins the first section (A₁), wherein the second section (A₂) has a variable wedge angle in order to avoid ghost images in reflection, wherein the wedge angle from a lower end to an upper end is a function of the distance to the lower end or to the upper end, wherein the function is a function of at least two degrees, wherein the second section (A₂) substantially minimizes ghost images of a head-up display, wherein the wedge angle profile has a third section (A₃), which adjoins the second section (A₂), wherein the third section (A₃) has a wedge angle that is constant or that is variable at least in some sections in order to avoid double images in transmission, wherein the wedge angle in the third section (A₃) is substantially equal to or greater than the wedge angle at the lower end of the first section (A₁).