Laminated pane with a holographic element and method for producing the same
A laminated pane includes first and second panes, a layer stack arranged therebetween including a first thermoplastic intermediate layer, a separating layer, a photopolymer layer with at least one holographic element, a carrier layer, and a second thermoplastic intermediate layer, wherein the photopolymer layer has a thickness of 5 μm to 50 μm, the carrier layer contains polyethylene terephthalate (PET), polyethylene (PE), polymethyl methacrylate (PMMA), polycarbonate (PC), polyamide (PA), polyvinyl chloride (PVC), and/or cellulose triacetate (TAC) and has a thickness of 20 μm to 100 μm, wherein the carrier layer is arranged directly adjacent the photopolymer layer, and the separating layer contains polyethylene (PE), polyvinyl chloride (PVC), and/or polymethyl methacrylate (PMMA) and has a thickness of 10 μm to 300 μm.
1 . A laminated pane, comprising a first pane, a second pane, a layer stack arranged therebetween, consisting of the following layers in order from the first pane to the second pane: a first thermoplastic intermediate layer, a separating layer, a photopolymer layer with at least one holographic element, a carrier layer, and a second thermoplastic intermediate layer, wherein
the photopolymer layer has a thickness of 5 μm to 50 μm,
the carrier layer contains polyethylene terephthalate (PET), polyethylene (PE), polymethyl methacrylate (PMMA), polycarbonate (PC), polyamide (PA), polyvinyl chloride (PVC), and/or cellulose triacetate (TAC) and has a thickness of 20 μm to 100 μm, wherein the carrier layer is arranged directly adjacent the photopolymer layer,
the separating layer contains polyethylene (PE), polyvinyl chloride (PVC), and/or polymethyl methacrylate (PMMA) and has a thickness of 10 μm to 300 μm.
2 . The laminated pane according to claim 1 , wherein the thickness of the photopolymer layer is between 8 μm and 30 μm.
3 . The laminated pane according to claim 2 , wherein the thickness of the photopolymer layer is between 10 μm and 20 μm.
4 . The laminated pane according to claim 1 , wherein the carrier layer consists essentially of polyethylene terephthalate (PET), polyethylene (PE), polymethyl methacrylate (PMMA), polycarbonate (PC), polyamide (PA), polyvinyl chloride (PVC), or cellulose triacetate (TAC).
5 . The laminated pane according to claim 4 , wherein the carrier layer consists essentially of polyamide (PA).
6 . The laminated pane according to claim 1 , wherein the carrier layer has a thickness of 40 μm to 90 μm.
7 . The laminated pane according to claim 6 , wherein the carrier layer has a thickness of 65 μm to 80 μm.
8 . The laminated pane according to claim 1 , wherein the separating layer consists essentially of polyethylene (PE), polyvinyl chloride (PVC), or polymethyl methacrylate (PMMA).
9 . The laminated pane according to claim 8 , wherein the separating layer consists of polymethyl methacrylate (PMMA).
10 . The laminated pane according to claim 1 , wherein the separating layer has a thickness of 40 μm to 200 μm.
11 . The laminated pane according to claim 10 , wherein the separating layer has a thickness of 65 μm to 150 μm.
12 . Laminated pane according to claim 1 , wherein the first thermoplastic intermediate layer and/or the second thermoplastic intermediate layer contain or consist essentially of polyvinyl butyral (PVB), ethylene vinyl acetate (EVA), polyurethane (PU), or copolymers or derivatives thereof.
13 . The laminated pane according to claim 1 , wherein the first pane and/or the second pane are made of glass.
14 . The laminated pane according to claim 13 , wherein the first pane and/or the second pane are made of soda lime glass.
15 . A projection assembly comprising a laminated pane according to claim 1 and a projector that is aimed at the holographic element, wherein the projector is a laser projector.
16 . A method for producing a laminated pane according to claim 1 , comprising:
a) providing a first pane, a first thermoplastic intermediate layer, a second thermoplastic intermediate layer, a separating layer, and a second pane,
b) providing a photopolymer layer having a holographic optical element, wherein the photopolymer layer is applied on a carrier layer,
c) forming a layer stack is formed with the following sequence of layers and panes: first pane—first thermoplastic intermediate layer—separating layer—a photopolymer layer having a holographic element—carrier layer—second thermoplastic intermediate layer—second pane,
d) laminating the layer stack.
17 . A method comprising providing a laminated pane according to claim 1 as interior glazing or exterior glazing in a vehicle or a building.
18 . The method according to claim 17 , wherein the laminated pane is a vehicle pane in vehicle of locomotion for travel on land, in the air, or on water.
19 . The method according to claim 18 , wherein the laminated pane is a windshield that serves as a projection surface.