Adaptable track lighting system

Abstract

The present invention relates to a track lighting system (1) comprising: a power track (2) having a longitudinal extension (L) and being connectable to an electric supply; a plurality of individually controllable lighting devices comprising at least one first lighting device (3) and at least one second lighting device (4), each being connectable to the power track (2), wherein the at least one first lighting device (3) comprises a first light source and a first light exit window (5) having a first form factor, wherein the at least one second lighting device (4) comprises a second light source and a second light exit window (6) having a second form factor; wherein at least one first lighting device (3) is a first pixelated lighting device wherein the first light source comprises a plurality of individually controllable first LED pixels; wherein the track lighting system (1) further comprises at least one control unit arranged to individually control the lighting devices (3, 4); and wherein the control unit is further arranged to control at least one first LED pixel of the plurality of individually controllable first LED pixels of the at least one first lighting device (3) to illuminate only a first portion of the first light exit window such that a light pattern is providable by the track lighting system (1) in the first light exit window.

Claims

1. A track lighting system comprising: a power track having a longitudinal extension and being connectable to an electric supply; a plurality of individually controllable lighting devices comprising at least one first lighting device and at least one second lighting device, each being connectable to said power track, wherein said at least one first lighting device comprises a first light source and a first light exit window having a first form factor, wherein said at least one second lighting device comprises a second light source and a second light exit window having a second form factor; wherein at least one first lighting device is a first pixelated lighting device wherein said first light source comprises a plurality of individually controllable first LED pixels; wherein said track lighting system further comprises at least one control unit arranged to individually control said lighting devices; and wherein said control unit is further arranged to control at least one first LED pixel of said plurality of individually controllable first LED pixels of said at least one first lighting device to illuminate only a first portion of the first light exit window such that a first light pattern is providable by said track lighting system in the first light exit window.

2. The track lighting system according to claim 1, wherein said first form factor is different from said second form factor.

3. The track lighting system according to claim 1, wherein said first form factor is circular and said second form factor is rectangular.

4. The track lighting system according to claim 1, wherein said second lighting device provides a second light pattern in the second light exit window, wherein in a first operational mode said first light pattern is substantially equal to said second light pattern.

5. The track lighting system according to claim 4, wherein said second light pattern is substantially equal in shape and size to said second light exit window.

6. The track lighting system according to claim 4, wherein in said first operational mode said first light pattern has a first width and said second light pattern has a second width substantially equal to said first width.

7. The track lighting system according to claim 4, wherein in said first operational mode said first light pattern has a first length and said second light pattern has a second length substantially equal to said first length.

8. The track lighting system according to claim 1, wherein said second lighting device is a second pixelated lighting device, wherein said second light source comprises a plurality of individually controllable second LED pixels; and wherein said control unit is further arranged to control said at least one second LED pixel of said plurality of individually controllable second LED pixels of said at least one second lighting device.

9. The track lighting system according to claim 1, wherein the plurality of individually controllable lighting devices further comprises at least one third lighting device being connectable to said power track, wherein said at least one third lighting device comprises a third light source and a third light exit window having a third form factor, wherein said at least one third lighting device is a third pixelated lighting device, wherein said third light source comprises a plurality of individually controllable third LED pixels, and wherein said control unit is further arranged to control said at least one third LED pixel of said plurality of individually controllable third LED pixels of said at least one third lighting device; wherein said third form factor is different from said first and said second form factors.

10. The track lighting system according to claim 1, wherein at least one of said plurality of lighting devices is rotatable in relation to said longitudinal extension of said power track.

11. The track lighting system according to claim 1, wherein at least one lighting device of said plurality of lighting devices is arranged at a distance from said power track, and wherein said distance between each lighting device and said power track is constant.

12. The track lighting system according to claim 1, wherein said at least one first pixelated lighting device comprises a light mixing chamber comprising a first compartment having a first compartment shape and a second compartment having a second compartment shape, said first compartment shape has a compartment width and a compartment length, wherein at least said compartment width is substantially equal to the width of said second light exit window.

13. A method for controlling a lighting system comprising a power track having a longitudinal extension and being connectable to an electric supply; a plurality of individually controllable lighting devices comprising at least one first lighting device and at least one second lighting device, each being connectable to said power track, wherein said at least one first lighting device comprises a first light source and a first light exit window having a first form factor, wherein said at least one second lighting device comprises a second light source and a second light exit window having a second form factor; wherein at least one first lighting device is a first pixelated lighting device wherein said first light source comprises a plurality of individually controllable first LED pixels; wherein said track lighting system further comprises at least one control unit arranged to individually control said lighting devices; and wherein said control unit is further arranged to control said at least one first LED pixel of said plurality of individually controllable first LED pixels of said at least one first lighting device, said method comprising the steps of: a) receiving information on a desired light pattern of said track lighting system; b) individually controlling said lighting devices and said at least one first LED pixel of said plurality of individually controllable first LED pixels of said at least one first lighting device to illuminate only a first portion of the first light exit window such that said desired light pattern is obtained in the first light exit window.

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 perspective view of the track lighting system of the present invention;

(3) FIGS. 2a-c are a lateral views of the track lighting system shown in FIG. 1;

(4) FIGS. 3a-b are a lateral views of the track lighting system according to other embodiments of the present invention.

(5) 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 OF THE INVENTION

(6) 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.

(7) FIG. 1 illustrates a track lighting system 1 comprising a power track 2 having a longitudinal extension and being connectable to an electric supply. The power track 2 is arranged to provide electric output.

(8) The track lighting system of the present invention further comprises a plurality of individually controllable lighting devices comprising one first lighting device 3 and two second lighting devices 4. The first lighting device 3 and the second lighting devices 4 are arranged alternatingly, i.e. the first lighting device 3 is arranged between two second lighting devices 4. Each lighting device 3, 4 of the plurality of lighting devices is connectable to the power track 2.

(9) The first lighting device 3 comprises a first light source (not shown) and a first light exit window 5 having a first form factor. As may be seen in FIG. 1, the first form factor is circular. Each second lighting device 4 comprises a second light source (not shown) and a second light exit window 6 having a second form factor. The second form factor is rectangular. In other words, the track lighting system 1 comprises a plurality of lighting devices being a mixture of circular and rectangular lighting devices 3, 4. Alternatively, said second form factor may be polygonal in alternative aspects, for example said polygonal form factor may be a pentagon, a hexagon, a heptagon, an octagon, a decagon, or equilateral triangle.

(10) The first lighting device 3 is a first pixelated lighting device wherein the first light source comprises a plurality of individually controllable first LED pixels.

(11) Turning the attention to FIG. 2, different operating modes of the track lighting system are shown. Thus, in FIG. 2a, all the lighting devices 3, 4 are illuminated, which may be desirable when the area needs to be provided with working light. As described above, the control unit may individually control LED pixels of the first lighting device 3, such that only a first portion 7 of the first lighting device is illuminated, thus providing a light pattern in the form of a straight line, as depicted in FIG. 2b. In the embodiment shown in FIG. 2c, both the first lighting device 3 and the second lighting devices 4 are pixelated lighting devices. Further, the second lighting devices 4 are rotatable. Thus, a light pattern may be provided in the form of parallel lines by controlling the LED pixels of the first lighting device 3 such that a second portion 7 is illuminated, and further controlling the LED pixels of the second lighting devices such that the length of the illuminated portion 8 of the second lighting device is equal to the diameter of the first lighting device, i.e. the second portion 7.

(12) In the embodiment shown in FIG. 3a, a track lighting system 101 is shown, wherein the first lighting device 103 and the second lighting devices 104 are pixelated lighting devices, and wherein the first form factor of the first lighting device 103 is the same as the second form factor of the second lighting devices 104, i.e. circular. As may be seen in FIG. 3a, the track lighting system 101 may be operated by controlling the LED pixels of the first and second lighting devices 103, 104 such that a light pattern 107 is provided in the first light exit window in the form of a straight line.

(13) Finally, in the embodiment shown in FIG. 3b, a track lighting system 201 is shown, wherein the first lighting device 203 and the second lighting devices 204 are pixelated lighting devices, and wherein the first form factor of the first lighting device 203 is the same as the second form factor of the second lighting devices 204, i.e. square. As may be seen in FIG. 3b, the track lighting system 201 may be operated by controlling the LED pixels of the first and second lighting devices 203, 204 such that a light pattern 207 is provided in the form of a zigzag line.

(14) 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.