VEHICLE LIGHTING DEVICE

Abstract

VEHICLE LIGHTING DEVICE The present invention relates to a vehicle, in particular a railway vehicle, comprising a body supported by wheels and, inside the body, a lighting device (3) comprising a luminous panel (4) having an emitting surface and a translucent slab (5) covering said emitting surface, said vehicle being characterized in that the translucent slab (5) delimits a closed translucent box (6) filled at least partially with at least one fluid (7). Figure for the abstract: Figure 2

Claims

Demands

1. A vehicle, in particular a railway vehicle, comprising a body (1) supported by wheels (2) and, inside the body (1), a lighting device (3) comprising a light panel (4) having an emitting surface and a translucent slab (5) covering said emitting surface, said vehicle being characterized in that the translucent slab (5) delimits a closed translucent box (6) partially filled by at least one fluid (7), the remainder of the volume of the box being occupied by air, such that when the vehicle is stopped or stationary, or when it is moving or in motion at a constant speed, the fluid (7) has an outer surface substantially parallel to the direction of travel of said vehicle and that when the vehicle accelerates or decelerates, the outer surface of the fluid (7) has an outer surface that is no longer parallel to the direction of travel of said vehicle, the fluid (7) being a gel or a liquid,possibly colored, or a mixture of immiscible liquids with different optical densities.

2. Vehicle according to claim 1, wherein the lighting device (3) further comprises a film (8) with a decorative pattern, said film (8) and the translucent slab (5) being stacked opposite the emissive surface of the light panel (4).

3. Vehicle according to claim 1 or 2, wherein the lighting device (3) further comprises a translucent protective layer (9).

4. Vehicle according to any one of claims 1 to 3, wherein the translucent box (6) of the translucent slab (5) is a polycarbonate box.

5. Vehicle according to any one of claims 1 to 4, wherein the housing (6) of the translucent slab (5) comprises lateral faces, perpendicular to the emissive surface of the light panel (4), covered with a reflective coating.

6. Vehicle according to any one of claims 1 to 5, wherein the translucent slab (5) comprises, opposite the emitting surface, a surface capable of diffusing light.

7. Vehicle according to any one of claims 2 to 6, wherein the film (8) comprises a polycarbonate layer on which a decorative film or screen printing is deposited.

8. Vehicle according to any one of claims 3 to 7, wherein the protective layer (9) is a translucent layer of polycarbonate.

9. Vehicle according to any one of claims 1 to 8, wherein the emissive surface of the light panel (3) is parallel to the direction of travel of the vehicle.

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