Lighting device comprising a luminous panel and a power track

Abstract

The present invention relates to a lighting device (1) comprising a luminous panel (2) comprising a light-emitting surface (3), a cover surface (4) arranged at a distance from the light-emitting surface (3), and at least one lateral surface (5) connecting the light-emitting surface (3) and the cover surface (4). The lighting device (1) further comprises a power track (6) being integrated in the luminous panel (2).

Claims

1. A lighting device comprising: a luminous panel comprising a light-emitting surface, a cover surface being arranged at a distance from said light-emitting surface, and at least one lateral surface connecting said light-emitting surface and said cover surface, at least a portion of said lateral surface comprising a cavity, wherein said lighting device further comprises a power track being integrated inside said cavity, and at least one auxiliary device in the form of a spotlight being connectable to said power track, wherein the cavity has beam shaping properties to provide a focused beam of light emitted by the spotlight.

2. The lighting device according to claim 1, wherein said power track is integrated along at least a portion of said at least one lateral surface.

3. The lighting device according to claim 1, wherein said power track is integrated along at least a portion of said cover surface.

4. The lighting device according to claim 1, wherein said cavity comprises an upper edge and a lower edge, and wherein said lower edge of said cavity is slanted.

5. The lighting device according to claim 1, wherein said at least one lateral surface comprises an upper portion and a lower portion, and wherein said cavity is arranged in said upper portion of said at least one lateral surface.

6. The lighting device according to claim 1, wherein said luminous panel comprises a plurality of 2D LED light sources.

7. The lighting device according to claim 1, wherein said luminous panel is substantially rectangular and comprises two longitudinal lateral surfaces and two transversal lateral surfaces, wherein said power track is integrated in at least one of said two longitudinal lateral surfaces.

8. The lighting device according to claim 1, wherein said lighting device further comprises a mounting member arranged on said cover surface.

9. The lighting device according to claim 1, wherein said lighting device further comprises a cover element being connectable to said power track.

10. The lighting device according to claim 1, wherein said lighting device further comprises a control unit.

11. The lighting device according to claim 1, wherein said power track comprises a plurality of segments.

12. A method for controlling a lighting device according to claim 1, said method comprising the steps of: receiving current light settings of said luminous panel; and, controlling output to said power track based on said current light settings of said luminous panel.

13. The lighting device according to claim 10, wherein said control unit independently controls the light output of the spotlight and of the luminous panel.

Description

BRIEF DESCRIPTION OF THE DRAWINGS

(1) Embodiments of the invention will now be described by way of example with reference to the accompanying drawings, of which:

(2) FIG. 1 is a side view of the lighting device of the present invention being attached to a ceiling;

(3) FIG. 2 is a side view of the lighting device of the present invention comprising a cavity;

(4) FIG. 3 is a side view of the lighting device of the present invention, wherein the power track is integrated in the mounting member;

(5) FIG. 4 is a side view of the lighting device of the present invention, wherein the power track is integrated in the peripheral portion of the cover surface.

(6) All the figures are schematic, not necessarily to scale, and generally only show parts which are necessary in order to elucidate embodiments of the present invention, wherein other parts may be omitted or merely suggested.

DETAILED DESCRIPTION

(7) The present invention will now be described hereinafter with reference to the accompanying drawings, in which exemplifying embodiments of the present invention are shown. The present invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments of the present invention set forth herein; rather, these embodiments of the present invention are provided by way of example so that this disclosure will convey the scope of the invention to those skilled in the art. In the drawings, identical reference numerals denote the same or similar components having a same or similar function, unless specifically stated otherwise.

(8) FIG. 1 illustrates a lighting device 1 comprising a rectangular luminous panel 2 comprising a light-emitting surface 3, a cover surface 4 being substantially parallel to the light-emitting surface 3, and two longitudinal lateral surfaces 5 being perpendicular to the light-emitting surface 3 and the cover surface 4. The lighting device 1 further comprises a power track 6 being integrated in the luminous panel 2.

(9) As may be seen in FIG. 1, the lighting device 1 of the present invention is attached to a ceiling 11. The luminous panel 2 of the lighting device 1 comprises a plurality of 2D LED light sources 8. A power track 6 is integrated in the longitudinal lateral surfaces 5 of the luminous panel 2. Further, two auxiliary devices in the form of spotlights 9 are connected to the power track 6. As mentioned above, the auxiliary devices 9 may be removed or repositioned, and further auxiliary devices may be connected to the power track 6 of the luminous panel by connecting such auxiliary devices to the power track 6.

(10) FIG. 2 depicts a lighting device 101 comprising a rectangular luminous panel 102 comprising a light-emitting surface 103, a cover surface 104 being substantially parallel to the light-emitting surface 103, and one longitudinal lateral surface 105 being perpendicular to the light-emitting surface 103 and the cover surface 104. The lighting device 101 further comprises a power track 106 being integrated in the luminous panel 102. The luminous panel 102 of the lighting device 101 comprises a plurality of 2D LED light sources 108.

(11) As may be seen in FIG. 2, the longitudinal lateral surface 105 comprises an upper portion 105 and a lower portion 105. A trapezoidal cavity 107 extends along the entire upper portion 105 of the longitudinal lateral surface 105. A power track 106 and an auxiliary device 109 are arranged inside the cavity 107. Such an embodiment provides the advantage of a discrete arrangement of the power track 106 and the auxiliary device 109 connected to the power track 106. Further, the cavity 106 also has beam shaping properties, providing a focused beam of light emitted by the auxiliary light source 109.

(12) FIG. 3 shows a lighting device 201 comprising a rectangular luminous panel 202 comprising a light-emitting surface 203, a cover surface 204 being substantially parallel to the light-emitting surface 203, and one longitudinal lateral surface 205 being perpendicular to the light-emitting surface 203 and the cover surface 204. The luminous panel 202 of the lighting device 201 comprises a plurality of 2D LED light sources 208.

(13) As may be seen in FIG. 3, the lighting device 201 further comprises a mounting member 210 arranged on the cover surface 204 of the luminous panel 202. The shape of the mounting member 210 corresponds to the shape of the cover surface 204, while the size of the mounting member 210 is slightly smaller than the size of the cover surface 204.

(14) A power track 206 is integrated in the mounting member 210, and an auxiliary device 209 is connected to the power track 206. By such an arrangement, the power track 206 is well hidden from view.

(15) FIG. 4 illustrates yet another embodiment of the present invention, wherein it is desirable to hide the power track from view. To this end, a lighting device 301 is provided, comprising a rectangular luminous panel 302 comprising a light-emitting surface 303, a cover surface 304 being substantially parallel to the light-emitting surface 303, and one longitudinal lateral surface 305 being perpendicular to the light-emitting surface 303 and the cover surface 304. The luminous panel 302 of the lighting device 301 comprises a plurality of 2D LED light sources 308.

(16) As may be seen in FIG. 4, a power track 306 is integrated along the peripheral portion 304 of the cover surface 304, and an auxiliary device 309 is connected to the power track 306. In such an embodiment, the power track 306 is hidden from view, while being easily accessible when installing or removing auxiliary devices.

(17) Although the present invention has been described with reference to various embodiments, those skilled in the art will recognize that changes may be made without departing from the scope of the invention. It is intended that the detailed description be regarded as illustrative and that the appended claims including all the equivalents are intended to define the scope of the invention. While the present invention has been illustrated in the appended drawings and the foregoing description, such illustration is to be considered illustrative or exemplifying and not restrictive; the present invention is not limited to the disclosed embodiments. Other variations to the disclosed embodiments can be understood and effected by those skilled in the art in practicing the claimed invention, from a study of the drawings, the disclosure, and the appended claims. In the appended claims, the word comprising does not exclude other elements or steps, and the indefinite article a or an does not exclude a plurality. The mere fact that certain measures are recited in mutually different dependent claims does not indicate that a combination of these measures cannot be used to advantage. Any reference signs in the claims should not be construed as limiting the scope.