Lighting device having a plurality of light sources
First Claim
1. A lighting device having a plurality of light sources, wherein the lighting device comprises several superimposed layers, havinga first and a second electrically conductive layer, which are configured to produce an alternating electrical field between them,an AC voltage source connected to the first and second electrically conductive layers,an electrically insulating layer between the electrically conductive layers,a first luminescent layer between the electrically conductive layers, anda second luminescent layer that is applied to the first luminescent layer and that is between the electrically conductive layers,wherein electroluminescent material is arranged in each of the first and second luminescent layers in several adjacent and spatially separated regions, each of which forms a light source, and the spatially separated regions in the first and the second luminescent layers are arranged in different planes.
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Accused Products
Abstract
A lighting device having a plurality of light sources includes several superimposed layers. The superimposed layers include a first and a second electrically conductive layer, which are designed so as to create an alternating electrical field between the layers. The superimposed layers also have an electrically insulating layer between the electrically conductive layers and a luminescent layer between the electrically conductive layers. Electroluminescent material is arranged within the luminescent layer in several adjacent and spatially separated regions, each region forming a light source. As a result, a simulated starry sky may be provided when the lighting device is used with an aircraft interior trim panel.
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Citations
20 Claims
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1. A lighting device having a plurality of light sources, wherein the lighting device comprises several superimposed layers, having
a first and a second electrically conductive layer, which are configured to produce an alternating electrical field between them, an AC voltage source connected to the first and second electrically conductive layers, an electrically insulating layer between the electrically conductive layers, a first luminescent layer between the electrically conductive layers, and a second luminescent layer that is applied to the first luminescent layer and that is between the electrically conductive layers, wherein electroluminescent material is arranged in each of the first and second luminescent layers in several adjacent and spatially separated regions, each of which forms a light source, and the spatially separated regions in the first and the second luminescent layers are arranged in different planes.
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20. An interior trim panel for an aircraft cabin, comprising:
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a panel layer configured to be mounted in the aircraft cabin, and a lighting device applied to the panel layer and having a plurality of light sources, wherein the lighting device comprises several superimposed layers, having a first and a second electrically conductive layer, which are configured to produce an alternating electrical field between them, an AC voltage source connected to the first and second electrically conductive layers, an electrically insulating layer between the electrically conductive layers, a first luminescent layer between the electrically conductive layers, and a second luminescent layer that is applied to the first luminescent layer and that is between the electrically conductive layers, wherein electroluminescent material is arranged in each of the first and second luminescent layers in several adjacent and spatially separated regions, each of which forms a light source, and the spatially separated regions in the first and the second luminescent layers are arranged in different planes.
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Specification