DE102009055847A1 - Changeable light device - Google Patents

Abstract

The present invention describes a variable lighting device that is adapted to meet different lighting requirements in a room or a building. In this case, at least one planar light element 1, 2, 8, which contains at least one light source 3, attached to a fastening means 4, 5, 6. The invention is characterized in that the planar light element 1, 2, 8 in at least two positions on the fastening means 4, 5, 6 and / or orientations relative to the fastening means 4, 5, 6 can be attached. As a result, the lighting device according to the invention makes it possible to flexibly, simply and quickly adapt the lighting in a room. This may be necessary due to different use of rooms, changes in the furnishings or different times of the day and / or seasons.

Description

The present invention relates to a variable lighting device used to illuminate a room. In particular, the variable lighting device is adapted to be adapted to changing lighting requirements in a room to be illuminated.

The interior lighting of rooms, in particular office space, presents various and variable requirements. Different office buildings, such as workrooms or meeting rooms, require different lighting. For example, walkways, office desks or lecterns must be specifically illuminated. In addition, office space in particular is subject to constant changes, which also change the lighting requirements. Office space is often redesigned, office furniture is placed in different locations, new furniture is added or furniture is removed. Furthermore, the lighting needs to meet every day and season.

In conventional lighting devices, it is difficult to flexibly adjust the illumination of a room. In most cases, the light fixtures are permanently installed and can only be removed with some effort or placed differently. Most conventional lighting devices are also not designed to be installed in any position, for example, on room walls or ceilings, and usually offer no way to change the lighting characteristics of the device according to the needs of the user. Most conventional lighting devices use fluorescent lamps that are difficult to reshape. In addition, often provides the power supply of the lighting device is an obstacle in the adjustment of lighting in a room.

The object of the present invention is therefore to provide a lighting device that is changeable and makes it possible to easily and flexibly change the lighting of a room, without making major modifications to the device.

The object is achieved by a variable lighting device according to claim 1. The variable lighting device according to the invention has at least one planar light element, which contains at least one luminous means, and has a fastening means on which the at least one flat light element is mounted. The variable lighting device is characterized in that the planar light element can be attached in at least two positions on the fastening means and / or orientations relative to the fastening means.

A light element is flat when it spans a plane (eg, by the length and width of a rectangular light element) which emits light and whose thickness is smaller than the spread plane spread.

The variable illumination device according to the invention therefore makes it possible, by changing the position and / or the orientation of the planar light element, to adapt the lighting of the space simply and flexibly. Due to their shape, the two-dimensional lighting elements fit well into the room concept on walls or ceilings of the room. If several flat light elements are used, some of them can be changed if necessary with respect to their position and / or orientation, that is not the entire lighting device must be changed. By changing the position of the fastener, the lighting device can accommodate a change in the distribution of furniture in the room. By changing the orientation of the lighting, for example, to compensate for daytime changes such as strong sunlight, in their direction can be changed.

Advantageously, the lighting means of the lighting device has at least one light-emitting diode (LED) and / or an organic light-emitting diode (OLED).

LEDs or OLEDs are particularly suitable for designing the variable illumination device according to the invention. Due to their small size, LEDs and OLEDs can be easily installed in the flat light elements. LEDs or OLEDs are available in different colors, so the light characteristics can be changed very flexibly. Preferably, LEDs are provided in the lighting device, which emit white light.

In addition, the emission characteristics of individual LEDs to conventional bulbs is different, for example, more simple point-shaped lighting properties can be achieved. Another advantage of LEDs or OLEDs is their low energy consumption and their long life compared to conventional bulbs. Especially in a variety of lighting devices in a building, the energy consumption, both in terms of cost and with respect to the heat radiation of the lighting devices, advantageous.

Advantageously, the at least one planar light element is rotatable on the fastening means and / or displaceable along the fastening means.

Advantageously, the at least one luminous means in the at least one planar light element is variable with respect to its position and / or orientation relative to the planar light element, in particular rotatable.

This feature of the lighting device allows for further improved flexibility in adapting to changing lighting requirements of the room to be illuminated. It is also a very quick and easy to implement solution for changing the lighting device, if not the entire light element is to be changed.

Advantageously, the at least one planar light element is magnetically attachable to the attachment means.

A magnetic holder avoids attachment mechanisms where the user must perform assembly work. Therefore, the change of the lighting device is much easier and more pleasant to perform. Furthermore, a magnetic attachment is non-destructive and leaves no residue, such as adhesive devices.

Advantageously, the one planar light element has an additional light-shaping accessory, preferably a lens and / or a reflector, which can be attached to the planar light element in front of the at least one light source and with which the exit angle of the light from the at least one planar light element is freely adjustable.

By changing the exit angle of the light, the lighting device can be adapted exactly to the conditions of the room. For example, office tables or hallways can be illuminated over a large area, while, for example, a lectern or a blackboard is illuminated only locally. Further, by being able to use either a flat light source or a point light source by narrowing the exit angle, the user can more flexibly implement his own preferences.

Advantageously, the at least one planar light element made of plasterboard into which the at least one light source is inserted.

Plasterboard is very inexpensive, very easy to work with, has a low weight and is therefore easy to change its position or orientation. In addition, it may still be edited, such as painted or papered. As a result, the lighting device can be inserted into the room concept in a particularly inconspicuous manner.

Advantageously, the at least one light source is electrically supplied via wireless, for example inductive coupling.

Such a wireless power supply allows a very simple and flexible change in the position and / or orientation of the planar light element with respect to the fastening means. No cables need to be laid or extended. In particular in connection with a magnetic attachment, an inductive power supply is extremely advantageous. The power supply can be installed inconspicuously at a suitable place in the room and does not hinder the attachment of the flat light elements.

The light element can have one or more driver circuits for operating the LEDs or OLEDs, wherein the driver circuit can be supplied with AC voltage, DC voltage or emergency voltage.

Advantageously, the fastening means may comprise a metallic frame, via which the at least one lighting means can be operated by a voltage supply arranged behind the fastening means.

The metallic frame of the fastener supplies the lamp with power and no additional cables or lines need to be laid. As a result, the attachment of the flat light elements designed much more flexible and easier, since supply voltage can be tapped anywhere on the fastener. Since LEDs or OLEDs are preferably used, low-voltage (typically less than, for example, 20V) is typically used, with a metallic support frame being particularly suited to the power supply.

Advantageously, the fastening means is a magnetic wall or ceiling to which the sheet-like light element is magnetically attachable.

If a magnetic wall or ceiling is provided, no additional fastener needs to be used. The flat light elements are thus attachable to arbitrary positions in space and arbitrarily orientable. In particular, in office rooms magnetic partitions or ceiling panels can be used to enable this advantageous embodiment of the invention. In particular, as an embodiment in combination with an inductive power supply, the invention unfolds the greatest flexibility and simplicity.

Overall, the above-mentioned embodiments of the variable lighting device allow extremely flexible, quick and easy adjustment of the lighting in a room. No complicated or protracted conversion measures have to be carried out, since the planar light elements themselves can be changed in their position on the fastening means and / or in their orientation relative to the fastening means. Both changes in the interior design can be reconstructed, as well as changes in natural light can be compensated for at different times of the day or season.

The present invention will be explained in detail below with reference to the attached figures.

1a and 1b show a first embodiment of the present invention.

2a and 2 B show a second embodiment of the present invention.

3a and 3b show two configurations of a planar light element, wherein the at least one light source is variable with respect to its position and / or orientation relative to the at least one planar light element.

4a and 4b show two configurations of a planar light element with a mounted light source and an additional accessory, with which the exit angle of the light can be changed.

5a and 5b show a third embodiment of the present invention.

In 1 a first embodiment of the present invention is shown. The at least one planar light element 1 (in 1 For example, three flat light elements 1 shown, but it is any number of flat light elements 1 conceivable) is on a (here exemplary area) fastener 4 appropriate. The fastener 4 However, it can have any other shape. Also the size of the fastener 4 can vary and is not related to the size of the sheet light element 1 (ie the fastener 4 may be smaller or larger than the light element in one and / or more dimensions 1 be).

In every flat light element 1 there is at least one bulb 3 (in 1 Not shown). Two different positions of the flat light elements 1 on the flat fastener 4 are in 1 shown. In the upper part a) are the flat light elements 1 in a first orientation relative to the attachment means 4 aligned. Because in 1 the fastener 4 and the flat light elements 1 are shown as equally dimensioned, their orientation may be parallel to each other, as in 1a , In the lower part b) of the figure, the flat light elements 1 in terms of their orientation relative to the fastener 4 for example, changed by 90 °, ie also changed by 90 ° to the exemplary first, initial orientation. The angle around the orientation of the flat light elements 1 is changed, is infinitely adjustable. In 1 the angle of rotation becomes as in the plane of the flat light element 1 and the fastener 4 lying down. A rotation of the at least one light element 1 is however also from the plane of the flat light element 1 and / or the fastener 4 (if lighting elements 1 and fasteners 4 mutually inclined) out conceivable, ie the light element can be inclined relative to the fastening means. Accordingly, the position of the flat light elements 1 on the fastener 4 be changed continuously, or a combination of rotation, displacement or inclination of the sheet light element 1 can be made.

It is conceivable that the flat light elements 1 magnetically attached to the fastener 4 are attached. Alternatively, the flat light elements 1 by means of hubs and / or displacement means and / or tilting means on the fastening means 4 to be appropriate. By changing the position and / or the orientation of the light elements 1 with respect to the fastener 4 the lighting device can change their radiation. The at least one light source 3 in each of the flat light elements 1 is variable with respect to its position and / or orientation, in particular rotatable. It is possible that the bulbs 3 not visible from the outside in the planar light element 1 are installed and accessible, for example, only by removing a cover. But there may also be openings for the bulbs 3 be kept free, thus without removing a cover their position and / or orientation with respect to the light elements 1 to change.

The at least one light source 3 in each of the flat light elements 1 is advantageously an LED or an OLED, preferably a white LED or OLED, which can be implemented as an RGB module or a combination of colored LEDs / OLEDs with color tone changing phosphors (phosphor-converted LEDs / OLEDs).

LEDs / OLEDs are particularly advantageous because they have low power consumption, low heat radiation, a variety of luminous properties (for example, in terms of color, the color temperature of white LEDs / OLEDs, the brightness, or the Shape of the light) and a small size. Of course, other suitable bulbs 3 in the flat light elements 1 be appropriate, for example, conventional light bulbs and / or gas discharge tubes and / or other known bulbs 3 ,

The fastener 4 is usually firmly attached to the wall and / or the ceiling of the room to be illuminated. Of course, it is also conceivable, the fastener 4 also with respect to its position and / or orientation on the wall and / or ceiling to make changeable. It may, for example, be slidable, rotatable, tiltable and / or displaceable.

The flat light elements 1 can, for example, against the fastener 4 be rotatable, tiltable and / or movable. For this purpose, corresponding turntables and / or displacement means and / or inclination means can be used, which are between the flat light elements 1 and the fastener 4 are positioned. The flat light elements 1 but may also be completely removable and then be reattachable in a different position and / or orientation, and / or tiltable relative to the attachment means be attached.

In order to achieve further flexibility and possibilities for changing the lighting device, the individual lamps can also be used 3 in the flat light elements 1 with respect to their position and / or orientation relative to the flat light elements 1 be changeable. In particular, the bulbs 3 be rotatable. It is both conceivable that the bulbs 3 in the plane of the surface light elements 1 rotate, as well as in a plane leading to the plane of the surface light elements 1 is inclined. The bulbs 3 can also be displaced and / or displaced within the planar light elements 1 be. The bulbs 3 are preferably interchangeable with each other, so that when lighting 3 be used with different properties (light intensity, tone, color, light shape), this at any position and / or in any orientation to the light element 1 can be set.

2 shows in this regard a second embodiment of the present invention, in which at least one planar light element 2 , on which at least one light source 3 is attached, can be seen. In this embodiment, the attachment means 5 a frame-like fastener 5 , which is preferably attached to the ceiling of the room to be illuminated with any attachment means. The frame-like fastener 5 is formed by way of example of lattice-shaped rods, which are repeated at equal intervals in both directions of the plane of the ceiling. The flat light elements 2 have the shape of the interstices of the frame-like fastening means 5 and can be modularly arranged in these.

The grid interspaces of in 2 shown frame-like fastener 5 are square, since the rods forming the fastener are evenly spaced in two directions of the ceiling plane and are perpendicular to each other. In such an arrangement, the flat light elements 2 arbitrarily offset and / or rotated by 90 °, 180 ° or 270 ° and / or inclined from the plane of the grid. However, it is also conceivable the rods of the fastener 5 to arrange differently, z. B. not rectangular or with different distances in the two directions. Thus arise z. B. rectangular or trapezoidal grid spaces. Furthermore, the bars do not have to be straight, but may have convex and / or concave curvatures. So can any shapes for the flat light elements 2 be specified. Advantageously, a configuration is selected in which the flat light elements 2 are interchangeable with each other and in at least two positions and / or orientations relative to the frame-like fastening means 5 are attachable.

The frame-like fastener 5 can be formed from bars of any material. Is at least a part of the fastener 5 Metallic, electricity can be transmitted. The frame-like fastener 5 Of course, can be formed differently than rods, of course, for. From individual panels or as a single piece (e.g., a single plastic, plasterboard, metal, or wooden frame) in the interstices for the light elements 2 are designed.

The frame-like fastener 5 can be changeable. Either it is designed to be disassembled and reassembled differently, or the components of the frame-like fastener 5 (eg rods as described above) can be shifted, twisted and / or tilted relative to each other. As a result, the lighting device can be made more flexible and z. B. with flat light elements 2 different size and / or shape can be fitted.

Two possible positions of the light element 2 on the fastener 5 are shown in part a) and part b) of the figure. The planar light element is exemplified by a grid gap of the fastener 5 placed in an adjacent grid gap. In addition, the embodiment may all be considered advantageous above described features of the first embodiment.

In particular, in 3 clearly illustrated how the at least one light source 3 with respect to its position and / or orientation to a flat light element 2 is changeable. In the left half a) the 3 is a position of the bulbs 3 on the flat light element 2 shown in the right half b) the 3 is the arrangement of the bulbs 3 on the flat light element 2 shown after adaptation to a new lighting requirement. It should with the circular part of the bulb 3 to be illustrated, in which direction the light source 3 is oriented. Thus, both a rotation of the bulb 3 in the plane of the planar light element 2 possible, as well as in one to the plane of the planar light element 2 inclined level possible. The bulbs 3 can either fixed, but rotatable and / or displaceable on the flat light element 2 be attached, or may be removable and in a different position and / or orientation on the flat light element 2 be re-attachable. The bulbs 3 are optionally also interchangeable with each other.

In the second embodiment according to 2 , are the bulbs 3 so on the flat light element 2 attached so that they are visible and accessible through an opening from the outside. This is more accurate in the left half a) the 4 to see where the bulb is 3 in the planar light element 2 , inserted somewhat recessed, is appropriate. Such an exemplary embodiment allows, for example, the simple addition of an additional accessory 7 as in the right half b) the 4 shown. The accessory 7 is an optical element such as a lens, a diffuser, a reflector and / or a colored glass. The accessory 7 can advantageously simply to the flat light element 2 attached and removed again. Various accessories 7 are preferably designed so that they are arbitrarily interchangeable and / or can be combined with each other.

In 4 is a possible effect of such an optional accessory 7 shown. Through the optical accessory 7 becomes the exit angle of the light from the at least one planar light element 2 freely adjustable. A wide exit angle as in the left half a) the 4 shown, leaves the flat light element 2 also appear flat in its luminous property, while a narrow exit angle, as in the right half b) the 4 shown, realized a point-like lighting property. As a result, conditions of the room to be illuminated can be even better reflected by the luminous property of the lighting device.

The flat light element 2 into which at least one. Lamp 3 is introduced, can be made for example of plasterboard. This allows easy production of the flat light element 2 , Due to the low weight of a light element 2 The flat light elements can be made of plasterboard 2 without much effort from users of the lighting device to the frame-like fastener 5 to be changed.

As in 2 shown may be attached to the frame-like fastener 5 also serve for power supply. Here is the fastener 5 at least partially metallic to the current to the at least one planar light element 2 or the at least one light source 3 transferred to. The power supply can inconspicuously behind the fastener 5 to be ordered. For each flat light element used 2 It is possible, anywhere on the partially metallic frame of the fastener 5 tapping a voltage to the bulbs 3 to supply electricity. As advantageously LEDs or OLEDs as a light source 3 Normally, a non-hazardous low-voltage power supply to the bulbs is sufficient 3 to operate. The light element 1 may have one or more driver circuits for operating the LEDs / OLEDs. The driver circuits can be supplied either with AC voltage or DC voltage supplied from the power supply. In addition, the driver circuits can be powered by an emergency voltage. The power supply can also sit behind the wall or ceiling of the room and over the mounting elements of the fastener 5 be delivered.

All of the described features of the second embodiment of the present invention may also be features of the first embodiment of the present invention. It is assumed that it is possible for a person skilled in the art to adapt the corresponding features respectively to the embodiment used.

In 5 a third embodiment of the present invention is illustrated. Here, a wall and / or a ceiling of the room to be illuminated, or a wall and / or a ceiling, which is additionally installed in a room, as a fastener 6 , The at least one planar light element 8th is doing on the fastener 6 attached (in 5 are for example 9 flat light elements 8th shown). The wall and / or ceiling to which the flat light elements 8th are attached, it is advantageously magnetic nature. The flat light elements 8th then become magnetic on the mounting wall and / or ceiling 6 appropriate. The wall and / or ceiling can be made directly from a magnetic material be, or alternatively be coated with a magnetic layer. Likewise, the flat light elements 8th be made of a magnetic material, or be provided on the back with a magnetic layer. The magnetic attachment allows maximum flexibility with respect to the position and / or orientation of the flat light elements 8th on / relative to the fastener 6 ,

In part a) of the 5 is an exemplary attachment of the flat light elements 8th shown. Here are both the ceiling 6 as well as the walls 6 of the room to be illuminated is magnetic. The flat light elements 8th are aligned to the lighting requirements of the room. Part b) of 5 shows the lighting device after adapting to changing lighting requirements of the room. It is good to see that the flat light elements 8th both with respect to their position on the fastener 6 as well as their orientation relative to the fastener 6 can be changed, that is offset, rotated and / or tilted (that is, either sitting on the wall or on the ceiling) can be. As in 5 shown, can use several flat lighting elements 8th be assembled into a larger composite, or may be attached individually to the wall and / or ceiling 6 be attached. The lighting elements 8th can be designed so that they are connected together and as a large area lighting element 8th can be moved, offset and / or rotated. Due to their flat shape, the flat light elements 8th inconspicuous and space-saving to the room walls or the ceiling are attached.

To be magnetically attached to the fastener 6 (Wall or ceiling) mounted flat light elements 8th To provide power, a wireless inductive coupling is advantageous. The power supply can be installed inconspicuously and space-saving in the room and it can be inductively via a coil, a voltage in a in the flat light element 8th built-in another coil can be coupled. The best is the power supply behind the wall and / or ceiling 6 and / or is designed flat. Through the wireless inductive supply of the bulbs 3 in the flat light elements 8th a great flexibility of the lighting device is ensured. When the lighting device changes, that is to say when the at least one planar light element is at work 8th in terms of its position and / or orientation to the fastener 6 is changed, no power supply cables or cables are additionally laid. As a result, the attachment of the flat light elements 8th in no way limited and also an optimal fit into the room concept is ensured.

It is also conceivable that several power supplies, the wireless inductive supply of the bulbs 3 take place. The multiple power supplies can each have one or more bulbs 3 , or one or more light elements 8th supply. This allows individual lighting elements 8th and / or bulbs 3 to switch on and off and to illuminate the room in a more targeted manner. The power supplies may also be connected to a central controller that performs automatic lighting (eg, user-programmable). This allows the lighting z. B. automatically adapted to different diurnal and / or seasons. The power supplies could also be controlled via conventional wireless connections from the central control.

Optionally, the lighting elements 8th also be provided with light and / or motion sensors or sensors of other types to respond to changing light conditions and / or movement or other changes. The power supplies can be automatically switched on and off or can automatically change the brightness of the lighting continuously. It is also conceivable for each differently colored bulbs 3 in a light element 8th provide each a power supply to automatically make a color adjustment of the lighting of the lighting device as needed.

Another advantage of an inductive power supply is that the flat light elements 8th must not be disconnected from the power supply before they are offset and / or twisted and / or tilted. In addition, they do not require electrical connections on the back, making them easier and better surface to the wall or ceiling 6 are customizable and can also be made more compact and easier.

Alternatively, only one or some of the light elements may be used 8th or bulbs 3 be powered via a line, but designed to be inductive voltage to other, not connected to the line light elements 8th or bulbs 3 to transmit inductively. It is also possible that only one or a few flat light elements 8th or bulbs 3 be supplied with power inductively or via a line and this by touching it to other flat light elements 8th or bulbs 3 transfer. Thus, the number of power supplies or power line can be kept low and still all flat light elements 8th or bulbs 3 be powered. It is conceivable that the flat light elements 8th are conductive and therefore the current to adjacent flat light elements 8th transferred, or that provided conductive paths in the flat light elements 8th the stream from a metallic frame to the bulbs 3 lead and the metallic frame when juxtaposed two or more flat light elements 8th are conductively connected.

It is noted that also the first and second embodiments described above can be operated by such inductive wireless power supply. The advantages of such a power supply are transferable.

In all three embodiments of the present invention, reference was made to the attached drawings. At the same time the flat light elements became 1 . 2 . 8th attached to the respective fasteners 4 . 5 . 6 are shown as square or rectangular. However, the flat light elements can 1 . 2 . 8th take any shape, for example, round, oval or polygonal and are not limited in size. A light element 1 . 2 . 8th is planar when it spans a plane (eg, by the length and width of a rectangular light element 1 . 2 . 8th ), which emits light and whose thickness is smaller than the spread of the plane spanned.

In summary, a variable lighting device has been described which is suitable for meeting a variety of lighting requirements in a room or building. At least one planar light element is thereby 1 . 2 . 8th that has at least one light source 3 contains, on a fastener 4 . 5 . 6 appropriate. The invention is characterized in that the flat light element 1 . 2 . 8th in at least two positions on the fastener 4 . 5 . 6 and / or orientations relative to the fastener 4 . 5 . 6 attachable. This makes it possible to easily and quickly change the lighting requirements in a room. These can arise through different distributions of the furniture, different use of rooms or different day and / or seasons. The present invention is also characterized in particular by its high flexibility and its cost-effective production.

Claims (10)

Changeable lighting device, which has at least one flat light element ( 1 . 2 . 8th ), the at least one light source ( 3 ), and a fastener ( 4 . 5 . 6 ), on which the at least one planar light element ( 1 . 2 ), characterized in that the planar light element ( 1 . 2 . 8th ) in at least two positions on the fastening means ( 4 . 5 . 6 ) and / or orientations relative to the fastener ( 4 . 5 . 6 ) is attachable. Lighting device according to claim 1, wherein the lighting means ( 3 ) has at least one LED and / or at least one OLED. Lighting device according to one of claims 1 or 2, wherein the at least one planar light element ( 1 . 2 . 8th ) on the fastening means ( 4 . 5 . 6 ) rotatable and / or along the fastener ( 4 . 5 . 6 ) is displaceable. Lighting device according to one of claims 1 to 3, wherein the at least one lighting means ( 3 ) in the at least one planar light element ( 1 . 2 . 8th ) with respect to its position and / or orientation relative to the planar light element ( 1 . 2 . 8th ) Changeable, in particular rotatable. Lighting device according to one of claims 1 to 4, wherein the at least one planar light element ( 1 . 2 . 8th ) magnetically on the fastening means ( 4 . 5 . 6 ) is attachable. Lighting device according to one of claims 1 to 5, wherein the at least one flat light element an additional accessory ( 7 ), preferably a lens and / or a reflector, in front of the at least one light source ( 3 ) on the flat light element ( 1 . 2 . 8th ) is attachable, and with which the exit angle of the light from the at least one planar light element ( 1 . 2 . 8th ) is adjustable. Lighting device according to one of claims 1 to 6, wherein the at least one planar light element ( 2 ) is made of plasterboard, in which the at least one light source ( 3 ) is used. Lighting device according to one of claims 1 to 7, wherein the at least one lighting means ( 3 ) is supplied via wireless inductive coupling with energy. Lighting device according to one of claims 1 to 7, wherein the fastening means ( 4 . 5 ) a metallic frame ( 6 ), via which the at least one light source ( 3 ) from one behind the fastener ( 4 ) arranged energy supply is operable. Lighting device according to one of claims 1 to 8, wherein the fastening means ( 6 ) a magnetic wall or ceiling is to which the flat light element ( 8th ) is magnetically attachable.

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