Abstract
The invention provides a lighting device (100) comprising a surface-mountable elongated carrier (200) for positioning relative to a surface (300), at least one light source (400), and an adjustable cover (500); wherein the elongated carrier (200) comprises opposite to each other a first face (210) on a first side and a second face (220) on a second side, the at least one light source (400) is located on the first (210) and second face (220); and 5 wherein the elongated carrier (200) comprises a third face (230) on a third side for facing the surface (300) in mounted position; and wherein the adjustable cover (500) is in connection with the carrier (200) and is positioned on a fourth side of the carrier (200) opposite to the third side, and wherein the adjustable cover (500) is movable relative to the elongated carrier (200) for controlling a light effect (600) originating from the at least one light source (400) 10 wherein the at least one light source (400) comprises a LED light source.
Claims
1. A lighting device comprising a surface-mountable elongated carrier for positioning relative to a surface, at least one light source, and an adjustable cover; wherein the elongated carrier comprises opposite to each other, a first face on a first side and a second face on a second side, the at least one light source is located on the first and second face; and wherein the elongated carrier comprises a third face on a third side for facing the surface in mounted position; and wherein the adjustable cover is in connection with the carrier and is positioned on a fourth side of the carrier opposite to the third side, and wherein the adjustable cover is movable relative to the elongated carrier for controlling a light effect originating from the at least one light source, wherein the at least one light source comprises a LED light source; wherein the adjustable cover is moveable with respect to the carrier in the direction perpendicular to the direction defined by the shortest distance between the third side and the fourth side, whereby said perpendicular direction is the direction defined by the shortest distance between the first side and the second side; and wherein the at least one light source comprises a high density LED strip with at least 90 LED light sources per meter.
2. The lighting device according to claim 1, wherein the light effect originating from the at least one light source on the first and second face of the elongated carrier is controlled simultaneously by the positioning of the adjustable cover with respect to the elongated carrier.
3. The lighting device according to claim 1, wherein the shortest distance between the third face and a fourth face is equal to or smaller than four times the width of the largest light source present in the lighting device, wherein the width of the largest light source is defined by the shortest direction between the third side and the fourth side, and wherein the largest light source is defined as the light source having the largest width.
4. The lighting device according to claim 1, wherein the surface-mountable elongated carrier consists out of a single piece.
5. The lighting device according to claim 1, wherein the at least one light source and the adjustable cover are arranged for generating a light effect.
6. The lighting device according to claim 1, wherein the adjustable cover is only moveable with respect to the carrier in the direction perpendicular to the direction defined by the shortest distance between the third side and the fourth side, whereby said perpendicular direction is the direction defined by the shortest distance between the first side and the second side; and the at least one light source comprises two LED strips; whereby the first LED strip is located on the first face and the second LED strip on the second face of the elongated carrier; and the light effect originating from the LED strips on the first and second face is controlled simultaneously by the positioning of the adjustable cover with respect to the elongated carrier; and the shortest distance between the third face and the fourth face is equal to or smaller than four times the width of the largest LED strip, wherein the width of the first LED strip is defined by the shortest direction between the third side and the fourth side, and wherein the largest LED strip is defined as the LED strip having the largest width.
7. The lighting device according to claim 1, wherein the adjustable cover is made out of a flexible material.
8. A system comprising a lighting device according to claim 1 and a control unit, wherein the control unit is arranged for receiving an input signal containing a command and for sending out a control signal based on the command; and wherein the lighting device comprises an electrically activated moving mechanism for moving the adjustable cover relative to the elongated carrier; and wherein the control signal of the control unit drives the movement of the adjustable cover by activating the electrically activated moving mechanism; and/or wherein the control signal of the control unit drives the at least one light source to generate a light effect.
9. The system according to claim 8, wherein the control unit comprises a communication device to communicate with other devices, wherein other devices are selected from the groups consisting of sensors, lighting devices or home electronics.
10. A lighting device comprising a surface-mountable elongated carrier for positioning relative to a surface, at least one light source, and an adjustable cover; wherein the elongated carrier comprises opposite to each other, a first face on a first side and a second face on a second side, the at least one light source is located on the first and second face; and wherein the elongated carrier comprises a third face on a third side for facing the surface in mounted position; and wherein the adjustable cover is in connection with the carrier and is positioned on a fourth side of the carrier opposite to the third side, and wherein the adjustable cover is movable relative to the elongated carrier for controlling a light effect originating from the at least one light source, wherein the at least one light source comprises a LED light source; wherein the adjustable cover is moveable with respect to the carrier in the direction perpendicular to the direction defined by the shortest distance between the third side and the fourth side, whereby said perpendicular direction is the direction defined by the shortest distance between the first side and the second side; wherein the adjustable cover is at least partly made out of a translucent material, and wherein the adjustable cover comprises an enclosing surface on which LEDs are located facing inwards, such that the adjustable cover is illuminated by said LEDs.
11. A lighting device comprising a surface-mountable elongated carrier for positioning relative to a surface, at least one light source, and an adjustable cover; wherein the elongated carrier comprises opposite to each other, a first face on a first side and a second face on a second side, the at least one light source is located on the first and second face; and wherein the elongated carrier comprises a third face on a third side for facing the surface in mounted position; and wherein the adjustable cover is in connection with the carrier and is positioned on a fourth side of the carrier opposite to the third side, and wherein the adjustable cover is movable relative to the elongated carrier for controlling a light effect originating from the at least one light source, wherein the at least one light source comprises a LED light source; wherein the adjustable cover is moveable with respect to the carrier in the direction perpendicular to the direction defined by the shortest distance between the third side and the fourth side, whereby said perpendicular direction is the direction defined by the shortest distance between the first side and the second side; wherein the adjustable cover is at least partly made out of a translucent material, and wherein the adjustable cover comprises separately at least a first cover and a second cover, whereby the at least first cover and second cover are adjustable individually to determine the overall positioning of the adjustable cover with respect to the carrier.
12. A lighting device comprising a surface-mountable elongated carrier for positioning relative to a surface, at least one light source, and an adjustable cover; wherein the elongated carrier comprises opposite to each other, a first face on a first side and a second face on a second side, the at least one light source is located on the first and second face; and wherein the elongated carrier comprises a third face on a third side for facing the surface in mounted position; and wherein the adjustable cover is in connection with the carrier and is positioned on a fourth side of the carrier opposite to the third side, and wherein the adjustable cover is movable relative to the elongated carrier for controlling a light effect originating from the at least one light source, wherein the at least one light source comprises a LED light source; wherein the adjustable cover is moveable with respect to the carrier in the direction perpendicular to the direction defined by the shortest distance between the third side and the fourth side, whereby said perpendicular direction is the direction defined by the shortest distance between the first side and the second side; wherein the adjustable cover is at least partly made out of a translucent material, and wherein the lighting device further comprises an electrically activated moving mechanism for moving the adjustable cover relative to the elongated carrier.
13. A lighting device comprising a surface-mountable elongated carrier for positioning relative to a surface, at least one light source, and an adjustable cover; wherein the elongated carrier comprises opposite to each other, a first face on a first side and a second face on a second side, the at least one light source is located on the first and second face; and wherein the elongated carrier comprises a third face on a third side for facing the surface in mounted position; and wherein the adjustable cover is in connection with the carrier and is positioned on a fourth side of the carrier opposite to the third side, and wherein the adjustable cover is movable relative to the elongated carrier for controlling a light effect originating from the at least one light source, wherein the at least one light source comprises a LED light source; and wherein the adjustable cover is only moveable with respect to the carrier in the direction perpendicular to the direction defined by the shortest distance between the third side and the fourth side, whereby said perpendicular direction is the direction defined by the shortest distance between the first side and the second side; and wherein the at least one light source comprises a high density LED strip, wherein the high density strip prevents pixilation of LEDs on the high density LED strip.
Description
BRIEF DESCRIPTION OF THE DRAWINGS
(1) FIG. 1A depicts schematically and in perspective view, by non-limiting example, an embodiment of a lighting device comprising a surface-mountable elongated carrier for positioning relative to a surface, at least one light source, and an adjustable cover.
(2) FIG. 1B depicts schematically and in cross-section, by non-limiting example, an embodiment of a lighting device comprising a surface-mountable elongated carrier for positioning relative to a surface, at least one light source, and an adjustable cover.
(3) FIG. 2A and FIG. 2B both depict schematically the prevention of glare by the positioning of the lighting device with respect to the surface, wherein FIG. 2A depicts the situation in which glare is perceived by two out of three observers, while FIG. 2B depicts the situation in which glare is prevented for all three out of three said observers,
(4) FIG. 3 depicts schematically an embodiment of the lighting device,
(5) FIG. 4 depicts schematically an embodiment of the lighting device showing an example of a light effect on a surface,
(6) FIG. 5 depicts schematically an embodiment of the lighting device comprising amongst others an electrically activated moving mechanism for moving the adjustable cover,
(7) FIG. 6 depicts schematically an embodiment of the lighting device,
(8) FIG. 7 depicts schematically an embodiment of the lighting device, wherein the surface to which the lighting device is mounted is not similar to the surface towards which the lighting device is positioned to, and
(9) FIG. 8 depicts schematically an embodiment of a system comprising a control unit and a lighting device according to the invention.
(10) FIG. 9 depicts schematically an embodiment of a system comprising a control unit and a lighting device according to the invention, wherein the control unit comprises a communication device to communicate with other devices, wherein the other devices comprises a lighting device, a smartphone, a smart wearable and a smart television.
DETAILED DESCRIPTION OF THE EMBODIMENTS
(11) FIGS. 1A and 1B depict schematically, by non-limiting example, an embodiment of a lighting device 100 comprising a surface-mountable elongated carrier 200 for positioning relative to a surface 300, at least one light source 400, and an adjustable cover 500. Said embodiment is depicted in perspective in figure lA and in a side view in FIG. 1B.
(12) Referring to the embodiment disclosed in FIG. 1A-B, the surface-mountable elongated carrier 200 is a rectangular profile mounted to the surface 300. The rectangular profile is a single extruded piece with an I shape. Alternatively, the elongated carrier is injected molded. Alternatively, the surface-mountable elongated carrier 200 may have another fixed profile shape, which is extruded uniformly in the elongated direction (56), like for example a I profile, L-shaped profile, V-shaped profile, round or elliptical. The surface-mountable elongated carrier 200 may also be a hollow profile shape comprising a cavity, which for example may be used to accommodate hardware which enable the functioning of the lighting device 100.
(13) Said surface-mountable elongated carrier 200 has an elongated form. As mentioned before, the term elongated means that the length of the carrier 200 of the lighting device 100, also referred to as length L in FIG. 1A, in the direction perpendicular to the direction 34 defined by the shortest distance between the third side 3 and the fourth side 4 (see FIG. 1B), and perpendicular to the direction 12 defined by the shortest distance between the first side 1 and second side 2 is at least four times, preferably at least twelve times larger than the distance defined by the shortest distance between third side 3 and the fourth side 4, also referred to as width W in FIG. 1A-B. The embodiment in FIG. 1A-B depicts schematically a length L eight times larger than the width W.
(14) Still referring to the embodiment disclosed in FIG. 1A-B, the elongated carrier 200 further comprises a third face 230 on a third side 3, which faces the surface 300 to which the elongated carrier 200 is positioned to. In said embodiment the elongated carrier 200 is also mounted to said surface 300 by means of adhesive force, i.e. glue 800. The elongated carrier 200 may alternatively be mounted to this surface 300 by means of other adhesive force like double sided adhesive tape, Velcro, or by means of magnetic force in case of a magnetic surface.
(15) Still referring to the embodiment disclosed in FIG. 1A-B, the elongated carrier 200 further comprises opposite to each other a first face 210 on a first side 1 and a second face 220 on a second side 2. Said sides are best schematically depicted in the side view in FIG. 1B. At least one light source 400 is located on the first 210 and second face 220. In said embodiment the at least one light source 400 is a first LED strip 401 on the first face 210 and a second LED strip 402 on the second face 220. Alternatively, the at least one light source 400 can be another type of light source 400, like for example aspot light, LED or OLED.
(16) In the embodiment depicted in FIG. 1A-B, the shortest distance between the third face 230 and the fourth face 240 is smaller than four times the width of the largest light source 400 present in the lighting device 100, wherein the width of the largest light source 400 is defined by the shortest direction between the third side 3 and the fourth side 4, and wherein the largest light source 400 is defined as the light source 400 having the largest width. Width of largest light source is indicated with reference V in FIG. 1B. To be more specific, the embodiment in FIG. 1A-B depicts a lighting device 100 in which the shortest distance between the third side 3 and the fourth side 4 is one and halve times the width of the largest light source 400 present in the lighting device 100, which is the first 401 or second LED strip 402. As LED strips are semiconductor lighting devices, the width of a LED strip can be made sufficiently small, which subsequently enables the lighting device 100 of this application to be a compact surface-mountable device.
(17) Still referring to the embodiment disclosed in FIG. 1A-B, the adjustable cover 500 is in connection with the elongated carrier 200 on a fourth side 4 opposite to the third side 3, and wherein the adjustable cover 500 is movable relative to the elongated carrier 200 for controlling a light effect 600 originating from the at least one light source 400. In said embodiment the adjustable cover 500 is in connection with the elongated carrier 200 by means of magnets 245. As the adjustable cover 500 is movable relative to the elongated carrier 200, the light effect 600 is controlled, as well as the perception of glare, which is caused by the at least one light source 400 and the positioning of the carrier 200 relative to the surface 300.
(18) Still referring to the embodiment disclosed in FIG. 1A-B, the adjustable cover 500 is moveable in a direction perpendicular to the direction 34 defined by the shortest distance between the third side 3 and fourth side 4. The movement of the adjustable cover 500 is in this embodiment limited to translations 1000, 1001, rotation 1002, and combination thereof in the plane perpendicular to the direction 34 defined by the shortest distance between the third 3 and fourth side 4. Still referring to FIG. 1A-B, yet in another embodiment, the adjustable cover 500 is only moveable in the direction perpendicular to the direction 34 defined by the shortest distance between the third side 3 and the fourth side 4, whereby said perpendicular direction is the direction 12 defined by the shortest distance between the first side 1 and the second side 2. The movement of the adjustable cover 500 is in this embodiment limited to translation 1001 in the direction 12 defined by the shortest distance between the first side 1 and the second side 2. Hence, depending on the requirements for controlling the light effect 600 and the perception of glare, the adjustable cover 500 is moveable with respect to the elongated carrier 200 in multiple degrees of freedom.
(19) As mentioned before, the lighting device 100 is positioned relative the surface 300. The lighting device 100 will render a light effect 600 on the surface 300, while the at least one light source 400 will also be a source for glare. The control of the perception of glare is schematically depicted in FIG. 2A-B, in which the embodiment described in FIG. 1A-B is used as a non-limiting example, wherein said perception is being observed by observers 700,701,702 facing the surface 300. The observers 700,701,702 are depicted as an eye symbol which are able to receive the rays of light emitted by the at least one light source 400. In FIG. 2A-B the lighting device 100 is mounted on the surface 300, wherein the elongated carrier 200 is extended with its elongated direction in the x-direction (of the coordinate system shown in the figure). The observers 700,701,702 are observing the lighting device 100 while being positioned at various locations on the y-axis, and while being positioned below the y-coordinate on which lighting device 100 is located, see FIG. 2A-B; Hereby, observer 700 is positioned on the y-coordinate closest to the lighting device 100, followed by observer 701 on a lower y-coordinate, followed by observer 702 on a lower y-coordinate than observer 701. Alternatively, the observers 700,701,702 may be observing the lighting device 100 while being positioned at various locations on the y-axis, and while being above the y-coordinate on which the lighting device 100 is located (not shown). Depending on the positioning of the lighting device 100 relative to the surface 300, the perception of glare is controlled by the adjustable cover 500. FIG. 2A depicts the situation that glare occurs due to the positioning of the lighting device 100. Here, observer 701 and 702 experience glare, while observer 700 is prevented from glare. In such a situation, FIG. 2B depicts the case that the adjustable cover 500 is subsequently moved relative to the elongated carrier 200 to control the light effect 600 and control the perception of glare caused by the at least one light source 400. Hence, in FIG. 2B glare is prevented. Now observers 701 and 702 are also prevented from the perception of glare.
(20) FIG. 3 depicts schematically, by non-limiting example, an embodiment of a lighting device 100 according to the invention. The surface-mountable elongated carrier 200 is a rectangular profile, which has a cross-sectional shape (i.e. the end face of the elongated carrier) that changes along the elongated direction 56, as there is an elliptical shaped narrowing 290 present in the construction to facilitate the moving mechanism 900 of the adjustable cover 500. The narrowing of the elongated carrier 200 along the elongated direction might also be narrowing or expanding according to a shape other than elliptic. Alternatively, said cross-sectional shape may be partly discontinuous along the elongated direction, i.e. the elongated carrier may have gaps for enabling an opening between the first face 210 and second face 220. Such discontinuities or gaps may reduce weight of the elongated carrier, may allow access from the first face of the elongated carrier to the second face, or may facilitate convection to cool the at least one light source.
(21) Referring to the embodiment depicted in FIG. 3, the surface mountable carrier 200 is mounted to the surface 300 with tight-fitted plugs 801 which mount the elongated carrier 200 to the surface 300 by connecting holes in the surface 300 and the carrier 200 in which they are fitted. Alternatively, other mechanical means of mounting the elongated carrier 200 might be applied like for example screws, wherein the screws are made accessible through an opening in the elongated carrier 200.
(22) Still referring to the embodiment disclosed in FIG. 3, the elongated carrier 200 further comprises opposite to each other a first face 210 on a first side and a second face 220 on a second side. The first face 210 comprises an array of individual LED light sources 402, which are positioned consecutively on the first face 210 in a row along the elongated direction 56 of the elongated carrier 200. The second side 2 comprises an array of individual spot lights 403, which are positioned consecutively on the second face 220 in a row along the elongated direction 56 of the elongated carrier 200. Alternatively, said light sources 402,403 can for example be positioned in other non-consecutive arrangements like clustered on one side or along a patterned line.
(23) Still referring to the embodiment disclosed in FIG. 3, the adjustable cover 500 is in connection with the elongated carrier 200 and is arranged at a fourth side opposite to the third side, and wherein the adjustable cover 500 is movable relative to the elongated carrier 200 for controlling a light effect originating from the at least one light source 400. The movement of the adjustable cover 500 is enabled by the movement mechanism 900. The movement mechanism 900 comprises a flexible straw like plastic tube 901, with sufficient rigidity to hold the adjustable cover 500 in place, but with enough flexibility to ensure the movement of the adjustable cover 500. Alternatively, the straw like plastic tube 901 can be a soft metal like aluminum or copper. Due to this movement mechanism 900, the movement of the adjustable cover 500 is enabled in all possible degrees of freedom, which is translation 1000, 1001, rotation 1002 and tilting 1003 relative to the elongated carrier 200. The movement is hereby driven by manual force. Alternatively, the movement mechanism depicted in the embodiment of FIG. 3 might be electrically driven by for example an electromotor or piezo actuators.
(24) FIG. 4 depicts schematically an embodiment, partly similar to the embodiment disclosed in FIG. 1A-B, but wherein the at least one light source 400 on the second face 220 is now a plurality of miniature LED spots with varying diameter 404. The miniature LED spots 404 are positioned in a sequence wherein two (smaller) LED spots are present between two consecutive LED spots with larger diameter. This arrangement will enable a light effect 605 mimicking rain on the surface 300 on the second side 2 to which the lighting device 100 is positioned to. Alternative light effects might also be generated, for example waving wheats, ocean waves or fireflies. The LED strip 401 on the first face 210 of the elongated carrier 200 is able to project a light effect 604 on the surface 300 mimicking the rise and set of the sun. While the lighting device 100 is able to generate such light effects, the adjustable cover 500 is positioned such that the effect of glare is prevented during these effects. Although said light effects are specific for each scene, the overall effect of the lighting device relates to a functional surface-washing effect, as the lighting device 100 is positioned relative to the surface 300.
(25) FIG. 5 depicts schematically, an embodiment of a lighting device 100 according to the invention. The at least one light source 400 comprises spots 403, which are located consecutively in a row on both the first face 210 and on the second face 220, whereby the spots 403 on the first face 210 and on the second face 220 are in an alternating pattern with respect to each other. This alternating pattern may facilitate cooling of the spots 403, while the elongated carrier 200 may serve as a heat sink to these spots 403. Alternatively, in case multiple light sources are present, the at least one light source may be positioned in a pattern other than alternating. For example, clustered light sources along the elongated direction of the carrier 200, a higher density of light sources at the center or ends of the elongated carrier 200, light sources on the first side being located at the center of the elongated carrier 200, while light sources on the second side being located at the ends of the elongated carrier 200.
(26) Referring to FIG. 5, The surface-mountable elongated carrier 200 is a rectangular profile, which is mounted to the surface 300 by means of tight-fitted plugs 801 which mount the elongated carrier 200 to the surface 300 by connecting holes in the surface 300 and the carrier 200 in which they are fitted.
(27) Still referring to the embodiment depicted in FIG. 5, the adjustable cover 500 is made out of a translucent material 501. The adjustable cover 500 comprises LED light sources 502 attached to the end faces 507, 508 of the adjustable cover, which are partly enclosing the adjustable cover 500, whereby the LED light sources are facing inwards into the adjustable cover, such that the translucent adjustable cover 500,501 serves as a diffuse light guide for the light emitted from said LED light sources 502. Alternatively, the LED light sources 502 might be attached to the other faces of the adjustable cover 500. In this way, the adjustable cover 500 will emit diffuse light in the color of the LED light sources 502, which enables the adjustable cover 500 to have a color corresponding to the light effects of the lighting device 100.
(28) Still referring to the embodiment disclosed in FIG. 5, the adjustable cover 500 is moveable in a direction perpendicular to the direction defined by the shortest distance between the third side and fourth side. The movement of the adjustable cover 500 is in this embodiment limited to translation 1001 in the plane perpendicular to the direction defined by the shortest distance between the third and fourth side. The adjustable cover 500 is furthermore in connection with the elongated carrier 200 by means of two rods 901 on each of the end faces 250,260 of the elongated carrier 200 not corresponding to the first, second, third or fourth face. Said rods 901 are housed in a bearing 902, which enables said movement of the adjustable cover 500, while holding the adjustable cover 500 in place relative to the elongated carrier 200. The bearing 902 may provide sufficient tolerance for the rods 901 to move while holding the adjustable cover 500, such that the adjustable cover 500 may translate in said direction 1001 to which it is limited to. Alternatively, the rods 901 may be able to slightly extend length, like for example telescopic rods. In this embodiment, the movement of the adjustable cover 500 is electrically driven by an electromotor 903, which may be placed on the second face 220 of the elongated carrier 200 and which may comprise a gear (segment) 904 to transfer force to teeth or rack 905 on the adjustable cover 500 for moving the adjustable cover 500. Alternatively, other mechanical mechanisms for transfer of movement, known to the person skilled in the art, may be selected to drive the adjustable cover 500 with the electromotor 903. Alternatively, next to the electromotor, the driving element may for example be piezo-actuators, linear motors or electromagnets. The position of the motor and the manner in which the motor moves the adjustable cover 500 is not relevant as long as the adjustable cover 500 can be moved with respect to the elongated carrier 200.
(29) FIG. 6 depicts schematically an embodiment, partly similar to the embodiment disclosed in FIG. 1A-B, but wherein the at least one light source 400 is a plurality of point sources of light 403, and wherein the adjustable cover 500 consists separately out of a first cover 511, a second cover 512 and a third cover 513, whereby the three covers are located consecutively along the elongated direction of the elongated carrier 200, and whereby the three covers 511,512,513 are adjustable individually to determine the overall positioning of the adjustable cover 500 with respect to the carrier 200. Said three covers have furthermore a window 555 made out of a translucent material, while the remaining part of the adjustable cover 500 is opaque. The translucent windows 555 enables a diffuse light to be emitted to the fourth side of the lighting device 100, such that not only a surface washing light effect is achieved, but also the side opposite to the wall is illuminated with diffuse light. The translucent windows may alternatively be used to enable optical access to possible receivers and transmitters located on the elongated carrier. Alternatively, the adjustable cover 500 may for example consist separately out of a first cover and a second cover, of which the first cover is covering the light sources on the first side and the second cover is covering the light sources on the second side, whereby the at least first cover and second cover are adjustable individually to determine the overall positioning of the adjustable cover 500 with respect to the carrier 200. Or alternatively, the adjustable cover 500 is for example made out of a flexible material, such that the flexible adjustable cover is locally deformable to facilitate local control of the light effect.
(30) FIG. 7 depicts schematically an embodiment of a lighting device 100 according to the invention, partly similar to the embodiment disclosed in FIG. 1A-B, but wherein the elongated carrier 200 has an elliptical cross sectional shape and the at least one light source 400 comprises an array of LED's 402 located on the first face 210 and second face 220 of the elongated carrier 200. An arrow with symbol g is depicted in FIG. 7 to indicate the gravitational direction. The lighting device 100 of the embodiment depicted in FIG. 7 is moreover mounted to another surface 301 than the surface 300 to which the lighting device 100 is positioned to.
(31) As mentioned before, the surface-mountable elongated carrier 200 is mountable to a surface. The surface 301 to which the lighting device 100 is mounted does not have to be similar to the surface 300 towards which the lighting device 100 is positioned to. The elongated carrier 200 can also be mountable to any other surface suitable for mounting the described lighting device 100. The phrase mountable is in this application not limited to only mechanical means of mounting, but also includes alternatives, like means of mounting comprising gravitational force if the lighting device 100 is supported by a surface without being fixed to the surface. FIG. 7 depicts an embodiment in which the elongated carrier 200 is mounted to an alternative surface 301 by means of a rod 807, which has a baseplate 302 for balance, which sits on a floor. Alternatively, the lighting device may for example be mounted to the ceiling by a hanging construction.
(32) FIG. 8 depicts schematically an embodiment of a system 5000 comprising a control unit 2000 and a lighting device 100 according to the invention.
(33) The lighting device 100 depicted in FIG. 8 is partly similar to the lighting device 100 disclosed in FIG. 1A-B, referring back to FIG. 1A-B, wherein the at least one light source 400 is a first LED strip 401 on the first face 210 and a second LED strip 402 on the second face 220; but wherein the adjustable cover 500 is moveable in a direction perpendicular to the direction defined by the shortest distance between the third side and fourth side. The movement of the adjustable cover 500 is in this embodiment limited to translation 1001 in the plane perpendicular to the direction defined by the shortest distance between the third and fourth side. The adjustable cover 500 is furthermore in connection with the elongated carrier 200 by means of two rods 901 on each of the end faces 250,260 of the elongated carrier 200 not corresponding to the first, second, third or fourth face. Said rods 901 are housed in a bearing 902, which enable said movement of the adjustable cover 500, while holding the adjustable cover 500 in place relative to the elongated carrier 200. In this embodiment, the movement of the adjustable cover 500 is electrically driven by an electromotor 903, which is placed on the second face 220 of the elongated carrier 200 and which comprises a gear (segment) 904 to transfer force to teeth or rack 905 on the adjustable cover 500 for moving the adjustable cover 500. Alternatively, other mechanical mechanisms for transfer of movement, known to the person skilled in the art, may be selected to drive the adjustable cover 500 with the electromotor 903. Alternatively, next to the electromotor, the driving element may for example be piezo-actuators, linear motors or electromagnets. The position of the motor and the manner in which the motor moves the adjustable cover 500 is not relevant as long as the adjustable cover 500 can be moved with respect to the elongated carrier 200.
(34) Referring to FIG. 8, said control unit 2000 is located in a space 280 within the elongated carrier 200. The control unit 2000 has means to communicate with other devices 2002 by means of Wi-Fi 2001. Alternatively, said communication might for example be by means of infrared, RF, visible light communication, Bluetooth, ZigBee, or a wired connection. The control unit 2000 might alternatively be located partly separate from the lighting device, for example as a bridge or smartphone. In the embodiment of FIG. 8, the control unit 2000 receives an input signal 2003 from another device 2002, for example another lighting device or sensor 2002, containing a command 2004 to adjust the adjustable cover 500. The control unit subsequently sends out a control signal 2005 based on said command by means of a wired connection 2006 to the movement mechanism 900 of the lighting device 100. The control signal 2005 of the control unit 2000 drives the movement 1001 of the adjustable cover 500 by activating the electrically activated moving mechanism 900 which comprises an electromotor 903, rods 902, gear (segment), 904, teeth or rack 905, and bearings 902. Alternatively, the control unit can for example drive the LED strips 401, 402 present on the faces 210,220 of the carrier 200 of the lighting device 100 for generating a light effect. As the sensor 2002 is a proximity sensor to detect the location of the lighting device 100 on the surface 300 and detect the location of the lighting device 100 with respect to an observer, the input signal 2003 will lead to the movement of the adjustable cover 500, such that the perception of glare is prevented.
(35) FIG. 9 depicts schematically an embodiment of a system 5001 comprising a control unit 2000 and a lighting device 100 according to the invention, wherein the control unit 2000 comprises a communication device 2011 to communicate with other devices, wherein the other devices comprise a lighting device 5010, a smartphone 5011, a smart wearable 5012 and a smart television 5013. Here, the lighting device 100 is located within a room 5014 and positioned relative to a wall 5015.
(36) Referring to FIG. 9: The lighting device 100 depicted in FIG. 9 is partly similar to the lighting device 100 disclosed in FIG. 1A-B, referring back to FIG. 1A-B, wherein the at least one light source 400 is a first LED strip 401 on the first face 210 and a second LED strip 402 on the second face 220; but wherein the adjustable cover 500 is moveable in a direction perpendicular to the direction defined by the shortest distance between the third side and fourth side. The movement of the adjustable cover 500 is in this embodiment limited to translation in the plane perpendicular to the direction defined by the shortest distance between the third and fourth side. The adjustable cover 500 is furthermore in connection with the elongated carrier 200 by means of two rods on each of the end faces of the elongated carrier 200 not corresponding to the first, second, third or fourth face. Said rods are housed in a bearing, which enable said movement of the adjustable cover 500, while holding the adjustable cover 500 in place relative to the elongated carrier 200. In this embodiment, the movement of the adjustable cover 500 is electrically driven by an electromotor, which may be placed on the second face of the elongated carrier 200 and which may comprise a gear (segment) to transfer force to teeth or rack on the adjustable cover 500 for moving the adjustable cover 500. Alternatively, other mechanical mechanisms for transfer of movement, known to the person skilled in the art, may be selected to drive the adjustable cover 500 with the electromotor. Alternatively, next to the electromotor, the driving element may for example be piezo-actuators, linear motors or electromagnets. The position of the motor and the manner in which the motor moves the adjustable cover 500 is not relevant as long as the adjustable cover 500 can be moved with respect to the elongated carrier 200.
(37) Still referring to FIG. 9, said control unit 2000 comprises a receiver 2010 arranged on the elongated carrier 200 of the lighting device 100 and a bridge 2011 located separate from the lighting device 100 in the room 5014. The receiver 2010 and bridge 2011 are in communication with each other by means of ZigBee 2012. Alternatively, said communication might for example be by means of infrared, RF, visible light communication, Bluetooth or Wi-Fi. The bridge 2011 is furthermore in connection with other devices by means of Wi-Fi, alternatively with for example ZigBee, wherein the other devices comprise a lighting device 5010, a smartphone 5011, a smart wearable 5012 and a smart television 5013. Said other devices 5010, 5011, 5012, 5013 are able to send input signals 2014 to the bridge 2011 of the control unit 2000 of the lighting device 100. The other lighting device 5010 may for example be a luminaire comprising the Philips Hue connected lighting, the smart television 5013 may for example be a Philips Ambilight television. The bridge 2011 of the control unit 2000 is able to process these input signals 2014 from the said other devices 5010, 5011, 5012, 5013. The bridge 2011 of the control unit 2000 is also able to send a control signal 2015 to these other devices 5010, 5011, 5012, 5013; and is able to send a control signal 2018 via the receiver 2010 and wired connection 2017 to the movement mechanism 910 and/or the at least one light source 400 of the lighting device 100 to generate a light effect in the room 5014 based on an interplay between the lighting device 100 and the other devices 5010, 5011, 5012, 5013. Due to relevant information on the activities within the room 5014, the lighting device 100 may provide functional lighting, while the perception of glare is prevented. For example, the smartphone 5011 and smart wearable device 5012 may send input signals 2014 comprising the location of a person 5014 in the room 5014; the smart television 5013 may send input signals 2014 comprising the current use status of the smart television 5013, which may be an indication for the presence of people in the room 5014 or the light intensity and light distribution in the room; the other lighting device 5010 may send the light intensity it emits within the room 5014. Combining and processing the information from these other devices 5010, 5011, 5012, 5013 may enable the lighting device 100 to provide the best possible arrangement of the adjustable cover 500 and the resulting light effect to prevent the perception of glare.
