EP3293441B1 - Luminaire - Google Patents

Description

FIELD OF THE INVENTION

The invention relates to a luminaire that can be used for illuminating rooms, interior rooms or parts of buildings or architectural features or objects or people located in rooms.

TECHNICAL BACKGROUND

The invention and the problem on which it is based will be explained in more detail below using the illumination of an interior space in a building.

It is generally known to install lights to illuminate an interior, for example in a ceiling area. If, for example, a corridor is illuminated with the help of individual ceiling spotlights, a relatively large number of these spotlights are required in order to illuminate the corridor in the desired manner given the elongated shape of the corridor. The light emitted by the individual conventional spotlights often falls on areas of the interior that should not be illuminated, while other areas are less well lit than desired.

In addition, it may happen that such a conventional lighting solution does not fully meet the aesthetic requirements of the lighting in all situations in which lighting is desired.

In the WO 2014/162298 A1 Furthermore, a modular lighting system is described which has a large number of modules which can be combined according to different patterns and each module has a support which is square in plan view and an optical element designed as a reflector integrated into this. The modules can be connected in such a way that the optical Element can take one of two different orientations. The optical element has different opening angles along a longitudinal and a transverse axis.

Furthermore, it is generally known that reflectors of light sources such as headlights can be equipped with free-form surfaces.

SUMMARY OF THE INVENTION

Against this background, the invention is based on the object of providing a further improved luminaire which avoids the above-mentioned disadvantages of conventional lighting devices and offers improved lighting options in order to illuminate the areas or objects to be illuminated in a more targeted and efficient manner and to meet the aesthetic requirements of the lighting effect achieved to accommodate a variety of situations flexibly.

According to the invention, this object is achieved by a lamp with the features of patent claim 1.

A lamp is proposed which has a lamp base body and light segments that can be inserted into the lamp base body. It is provided here that each of the lighting segments emits light in a directed manner and has a predefined radiation characteristic. The radiation characteristics of the lighting segments include at least two different radiation characteristics.

One finding underlying the present invention is that the light emitted by the light segments can be used more efficiently in this way than when using conventional spotlights. In particular, it is possible to specifically illuminate desired areas, to avoid direct illumination of areas that are not to be illuminated, and to achieve different aesthetic lighting effects in a flexible manner, for example to showcase a room and/or an object and/or a person in different ways . Furthermore, the more efficient, more effective light emission allows lights to be emitted can be saved, and the more efficient use of the light emitted can also offer the advantageous possibility of saving energy. In particular, a luminaire can be created according to a modular principle. In other words, a flexible, modular lighting system is provided in particular, which includes the lamp base body and the lighting segments.

In the present case, an emission characteristic should be understood to mean the directed light output (quantity) emitted by a lighting segment. The term “emission characteristic” should also be understood to mean that simply twisting or pivoting or otherwise repositioning a light segment does not change its radiation characteristic.

Advantageous refinements and further developments result from the subclaims and from the description with reference to the figures in the drawing.

In one embodiment, at least two light segments can be inserted into the light base body. The lamp base body is designed for the insertion of at least two lighting segments into it. In particular, when using the lamp, the user can insert the total number of at least two or more lighting segments that can be inserted into the lamp base body for some applications, whereas for other applications the user can insert fewer lighting segments into the lamp base body than the design of the lamp base body makes possible. A very flexible use of the lamp is possible thanks to this modular design. For example, a subsequent adjustment of the lamp can easily be carried out when redesigning a business premises, for example.

In one embodiment, the lighting segments can be inserted into the lamp base body at predefined, for example regularly arranged, positions. This enables a high degree of flexibility when equipping the luminaire base body, for example with a selection from a total of available luminous segments. In particular Lighting segments that are essentially the same in terms of their external shape can therefore be flexibly combined.

In a further development, the light segments can, for example, be inserted at positions that are specified by a regular grid, for example with grid lines that cross each other perpendicularly.

The light segments can be inserted into the lamp base body in such a way that, according to the invention, the inserted light segments form an arrangement extending in one plane. In particular, in one embodiment, the lighting segments can be inserted into the lamp base body in such a way that the inserted lighting segments form an arrangement that extends in a horizontal or vertical plane when the lamp is mounted. In this way, a variety of lighting effects can be achieved using the emission characteristics of the lighting segments without complicated rotation and pivoting mechanisms for the individual lighting segments. For example, if the plane runs essentially horizontally when the lamp is mounted, either floor areas, wall areas or both can be illuminated, but the lighting segments do not have to be adjusted by pivoting or twisting, but can be arranged in a fixed alignment and illuminate from the horizontal . In an analogous manner, lighting effects can be created either in floor, wall and/or ceiling areas if the plane runs essentially vertically, with the fixed lighting segments then lighting up from the vertical. In particular, by arranging the lighting segments in accordance with this embodiment, lighting effects can be achieved using the lamp, for example in both horizontal and vertical sub-areas of a room. The creation of such lighting effects with an arrangement of light segments extending essentially in one plane can achieve an interesting aesthetic effect and can also be advantageous, for example, when using the light in a grid ceiling.

For example, the arrangement can be formed in such a way that the lighting segments are next to each other in the horizontal or vertical plane, for example Row or in two directions are inserted in a matrix-like manner into the lamp base body.

In one embodiment, when the lamp is mounted, the plane in which the arrangement extends can run essentially parallel to a ceiling or essentially parallel to a wall of a room.

In a further embodiment, two or more of the inserted lighting segments can have the same radiation characteristics. This can, for example, make it possible to provide several similar lighting effects or a larger lighting effect of one type.

According to the invention, the lighting segments each have an optical component, using which the radiation characteristics of the lighting segment are achieved. In a further development, the lamp can be equipped with lighting segments in particular in such a way that the lamp has such optical components of at least two types that are designed differently from one another. This makes it possible to provide different radiation characteristics in an expedient manner.

According to the invention, at least one of the light segments has a reflector as an optical component, the reflector having a square outer outline and a plurality of light-reflecting partial surfaces and adjacent ones of the light-reflecting partial surfaces being connected to one another at one of several corners of the reflector and at least one of the plurality of light-reflecting partial surfaces of the reflector as a standard reflector surface or as part of a standard reflector surface and at least one as a free-form surface.

In this way, the radiation characteristics of the lighting segment can be effectively influenced, in which case the reflector can advantageously be designed with comparatively small dimensions.

A standard reflector surface can, for example, be a reflector surface of parabolic shape, in particular a reflector surface of parabolic shape with a facet structure. The standard reflector surface could, for example, be a paraboloid surface or part of one, possibly with a facet structure.

A free-form surface, however, can be geometrically freely designed in order to specifically influence the reflection process on the light-reflecting partial surface designed as a free-form surface and to change or optimize the light distribution achieved and thus the radiation characteristics.

Thus, in one embodiment, the lamp can be equipped with lighting segments in particular in such a way that the lamp has reflectors of at least two types that are designed differently from one another. This advantageously enables different radiation characteristics and different lighting effects. However, in another embodiment, several of the reflectors can be of the same type.

In one embodiment, at least two of the light-reflecting partial surfaces are each designed as a standard reflector surface or as part of a standard reflector surface and at least two of the light-reflecting partial surfaces are each designed as a free-form surface.

According to a further development, the reflector has two light-reflecting partial surfaces, each designed as a standard reflector surface or as part of a standard reflector surface, which are arranged opposite one another. Furthermore, the reflector has two light-reflecting partial surfaces designed as free-form surfaces, which are arranged opposite one another. This can be useful, for example, to create a more elongated beam of light to illuminate long areas such as hallways.

In one embodiment, the reflector is designed with four light-reflecting sides. Such a reflector can harmoniously form part of a four-sided lighting segment.

According to the invention, adjacent light-reflecting partial surfaces are connected to one another at one of several corners of the reflector. A form of A reflector with several corners can in turn help to set the desired radiation characteristics.

In one embodiment, at least one of the free-form surfaces is designed to bulge like a bulge towards an inner region of the reflector. This can also be advantageous for generating a light distribution that is to be adapted to, for example, a rather elongated area to be illuminated.

In one embodiment, the reflector is designed as an injection molded part. Here, the reflector can also have, for example, a reflective layer connected to the injection-molded component. Such a reflector can be manufactured comparatively inexpensively, even if the reflector has a complex shape.

In other embodiments of the invention, the reflector can be manufactured using a different manufacturing process. For example, the reflector can be manufactured by forming a metal sheet, for example by means of one or more of the following processes: roll forming or cold rolling, bending, stretch drawing, drawing processes such as in particular deep drawing, pressing, embossing, punching, deforming - for example deep drawing - using a rubber cushion, Pressing, superplastic forming, hammering or blowing, explosion forming, magnetic pulse forming.

In particular, according to a further development, it is provided that the shape of the reflector cannot be changed by a user, but is fixed. However, in embodiments of the invention, a series of light segments, each with a different reflector shape for different applications and/or effects, are preferably provided, with the reflector shape being determined by an appropriate choice of the light segments when the configuration of the light is put together for the first time or by later replacement of the light segments can be varied as needed. This eliminates the need for complicated and time-consuming adjustment processes. Instead, the luminaire can advantageously be configured by a customer for the desired purpose when ordering, for example by appropriately combining lighting segments with different radiation characteristics.

In particular, in embodiments of the invention, several lighting segments can be combined in one lamp, which have different reflectors, each with at least one light-reflecting partial surface designed as a free-form surface.

In one embodiment, a plurality of reflectors with the same external outline are advantageously provided, but each of which gives the lighting segments a different radiation characteristic. Lighting segments with a wide variety of radiation characteristics can therefore be offered, which can be selected by a customer as required and inserted into the luminaire base body. Due to the same outer outline of the reflector, such lighting segments fit together well both in terms of the space required in the base body of the lamp and in terms of the aesthetic effect. In further embodiments, for example, the reflectors of all lighting segments can have a substantially identical outer outline. This can be particularly practical and useful from an aesthetic point of view and when inserting the light segments. Alternatively, the light segments of the lamp can form groups within which the external outline of the reflectors is the same.

In embodiments, the outer outline of the reflector can be, for example, square, in particular square, or round, in particular circular. Combinations of reflectors with square and round external outlines are also conceivable.

In one embodiment, at least one of the lighting segments has a lens as an optical component, or several of the lighting segments each have a lens as an optical component. A lens can also be used to effectively influence the radiation characteristics of the light segment.

In a further embodiment, the lamp can be equipped with lighting segments in particular in such a way that the lamp has lenses of at least two types that are designed differently from one another. This in turn advantageously enables different radiation characteristics and different lighting effects.

However, in another embodiment, several of the lenses may be of the same type.

According to a further development, it can be provided in particular that the shape of the lens cannot be changed by a user, but is fixed. Preferably, in embodiments of the invention, a number of light segments are provided, each with a differently acting lens, for example a different lens shape, for different applications and/or effects. The lens type can be varied by selecting the lighting segments appropriately when the lamp configuration is put together for the first time or by replacing the lighting segments later if necessary. This eliminates the need for complicated and time-consuming adjustment processes, and the luminaire can instead be advantageously configured by a customer for the desired purpose when ordering, for example by appropriately combining lighting segments with different radiation characteristics.

In particular, in embodiments of the invention, several lighting segments which have differently designed lenses can be combined in one lamp.

In one embodiment, a plurality of lenses with the same external outline are advantageously provided, which each give the lighting segments a different radiation characteristic. Thus, even when the optical component is designed as a lens, lighting segments with a wide variety of radiation characteristics can be offered, which can be selected by a customer as required and inserted into the luminaire base body. Due to the same outer outline of the lens, such lighting segments fit together well both in terms of the space required in the base body of the lamp and in terms of the aesthetic effect. According to another presently disclosed aspect, for example, lenses of all light segments can have a substantially the same outer outline. This can be particularly practical and useful from an aesthetic point of view and when inserting the light segments. Alternatively, according to yet another aspect, the lighting segments of the lamp can form groups within which the outer outline of the lenses is the same.

In embodiments, the outer outline of the lens can be, for example, square, in particular square, or round, in particular circular. Combinations of lenses with square and round outer outlines are also conceivable.

In a further development, the lens can be a lens whose effect is based to a large extent on total internal reflection (so-called TIR lens in English, where TIR stands for "total internal reflection").

In a further embodiment of the invention, at least one of the luminous segments can have a lens as an optical component, while at least another one of the luminous segments has a reflector as an optical component, wherein the reflector has at least one light-reflecting partial surface designed as a free-form surface. According to this embodiment, at least one lighting segment with a lens is combined with at least one lighting segment with a reflector. This can have an even more beneficial effect on the variety of lighting effects that can be created.

In one embodiment, the light segments are designed as replaceable light segments. Thus, one or more lighting segments can be advantageously exchanged in order to replace the lighting segment or segments with one or more lighting segments with different radiation characteristics and to vary the lighting effects that can be achieved. In addition, a possibly damaged light segment can be easily replaced in this way.

For example, the light segments can be designed as changeable spots. The changeability not only allows a light segment to be replaced if it is damaged, but also allows the light to be changed to a certain extent in the event of changes, for example in the environment to be illuminated using the spots. Lighting effects can therefore be easily varied, for example, i.e. the lighting function of the lamp can be influenced in many ways by changing lighting segments.

For example, in one embodiment the lamp base body can be rectangular, in particular square. A rectangular or square luminaire base body can be useful, for example, if the luminaire is to be installed in a grid of a false ceiling.

In one embodiment, for example, four to nine light segments or four to sixteen light segments can be inserted into the light base body. In particular, a rectangular grid, for example, with 2 x 2 insertion positions for light segments or with 3 x 3 such insertion positions or with 4 x 4 such insertion positions can be provided. However, there are further training courses More generally, such grids with nxn or nxm positions are conceivable, where n and m each represent an integer.

In one embodiment, the lamp as a whole can be fine-adjustable, for example by fine-tuning the angular position of the entire lamp within a limited angular range. This can be useful, for example, to make a fine adjustment or fine correction to the lighting effect achieved after installing the lamp and to compensate for any installation tolerances.

In a preferred embodiment, the light segments are inserted into the light base body in fixed positions and also in a non-adjustable or unadjustable manner relative to the light base body after insertion, whereby the structure of the light is simplified and the light can be manufactured more cost-effectively. However, in a further development it is conceivable to design the lighting segments to be insertable into the lamp base body in one of several defined angular positions, for example rotated in steps of 90 degrees.

In one embodiment, the light output of the luminous segments can be switched and/or controlled specifically for individual luminous segments and/or for subgroups of the luminous segments, such that different lighting effects can be achieved using the luminaire. In particular, a wide variety of options are conceivable for switching light segments on or off individually or in combination with each other or for controlling their light output in order to make a wide variety of lighting effects possible.

According to a further development, the light output of the luminous segments can be switched and/or controlled in such a way that several luminous segments, in particular several similarly designed luminous segments, of a first subgroup of the luminous segments can be activated simultaneously to emit light in order to produce a first one through the interaction of the luminous segments of the first subgroup To produce a light effect, and that furthermore several light segments, in particular several similarly designed light segments, of a further subgroup of the light segments can be activated simultaneously to emit light in order to produce a further light effect through the interaction of the light segments of the further subgroup.

The further light effect is different from the first light effect. In this way, various lighting effects can be effectively achieved using lighting segments adapted for this purpose. In a variation, some or all of the lighting segments grouped together in a subgroup may be designed differently if this is useful in producing the desired lighting effect.

In a further development, the first and second subgroups of the lighting segments are disjoint. According to an alternative development, however, the first and second subgroups can instead comprise one or more common lighting segments.

In further embodiments, more than two subgroups of lighting segments can be provided to generate further lighting effects, such as three or four subgroups or even more.

In one embodiment, the lighting effects include a targeted, in particular direct, illumination of a wall or a predefined area of a wall, and/or a targeted, in particular direct, illumination of a floor or a predefined area of a floor, and/or a targeted, in particular direct, Illumination of an object placed in a room or a person located in a room.

In one embodiment of the invention, it can therefore be provided that the wall or the predefined area of the wall can be illuminated by means of a subgroup of several identically designed lighting segments, while the floor or the predefined area can be illuminated by means of a further subgroup of different but identically designed lighting segments Area of the floor can be illuminated, whereby the two subgroups can be used in combination for simultaneous lighting in the wall and floor area by appropriately switching and / or controlling the lighting segments.

In other embodiments, however, provision can be made for the lighting of the wall or the predefined area of the wall and/or the lighting of the floor or the predefined area of the floor and/or the lighting of the object placed in the room or the person in the room can be done using a single light segment assigned to the light effect.

In a further embodiment, the lighting effects include a targeted, in particular direct, illumination of a wall or a predefined area of a wall, and/or a targeted, in particular direct, illumination of a floor or a predefined area of a floor, and/or a targeted, in particular direct , lighting a ceiling or a predefined area of a ceiling and/or targeted, in particular direct, lighting of an object placed in a room or a person located in a room.

In a further embodiment of the invention, it can thus be provided that the wall or the predefined area of the wall can be illuminated by means of a subgroup of several identically designed lighting segments, while the floor or the floor can be illuminated by means of a further subgroup of different but identically designed lighting segments predefined area of the floor can be illuminated, while the ceiling or the predefined area of the ceiling can be illuminated by means of a yet further subgroup of, for example, different but identically designed lighting segments. By appropriately switching and/or controlling the lighting segments, the subgroups can be used in combination for simultaneous lighting in the wall, floor and ceiling areas.

In other embodiments, however, provision can be made for the lighting of the wall or the predefined area of the wall and/or the lighting of the floor or the predefined area of the floor and/or the lighting of the ceiling or the predefined area of the ceiling and/or the lighting of the object placed in the room or the person in the room can be done using a single light segment assigned to the light effect.

In a further development, the ability to generate one or more of the lighting effects using a single one of the lighting segments can be combined with the ability to generate another one or several other of the lighting effects can be combined using a subgroup of the lighting segments.

In one embodiment, the lighting segments each have a device which makes it possible to receive control signals for switching and/or controlling the light output of the lighting segment in a wireless or wired manner. In a further development, devices can be provided that enable the control signals to be received both by wire and wirelessly. The lighting segments are set up to switch and/or control the light output according to the control signals. This makes it possible to address the lighting segments in a flexible manner and at the same time limit the amount of cabling.

In one embodiment, the light segments each have a communication device which enables the control signals to be received wirelessly and in particular includes an interface for communication via a wireless protocol. Alternatively or additionally, the light segments can each have an interface for connection to a wired bus or a wired network, which enables the control signals to be received.

In one embodiment, an outer contour of at least one of the lighting segments, some of the lighting segments or all of the lighting segments is polygonal, in particular rectangular or square. Alternatively, an outer contour of at least one of the lighting segments or some of the lighting segments can be round, in particular circular. In a further alternative embodiment, an outer contour of at least one of the lighting segments is round, in particular circular, and an outer contour of at least one further of the lighting segments is polygonal, in particular rectangular or square. For example, an interesting aesthetic effect can be achieved if the lighting segments all have a relatively simple, for example the same, outer contour, but are different in terms of their radiation characteristics. A rectangular outer contour can also be advantageous in order to insert a large number of lighting segments into a substantially rectangular lamp base body.

According to the invention, the luminaire is designed for arranging the luminaire in a room in a building in the ceiling area and/or for arranging the luminaire in the room in the building in the wall area.

In one embodiment, the luminaire is designed as a grid luminaire for arrangement in a grid ceiling. It is therefore advantageously possible to provide lighting effects in a flexible and versatile manner, even in cases in which the arrangement and attachment of the luminaire are based, for example, on the grid of a grid ceiling.

In an alternative embodiment, the lamp is designed as a recessed lamp. Here, the luminaire can be intended and set up, for example, for installation in a ceiling and/or for installation in a wall.

According to a further alternative embodiment, the lamp is designed for use as a suspended lamp, wherein the lamp can, for example, have an independent housing for use as a suspended lamp.

In a further alternative embodiment, the luminaire is designed to be mounted on a wall. For this purpose, the lamp can in particular have an independent housing, which makes it possible to arrange the lamp in the wall area on the surface of the wall. Alternatively, the luminaire could be designed to be mounted on a surface of a ceiling and in particular have an independent housing that is set up for arranging the luminaire on the surface of the ceiling.

In this way, a wide variety of lighting requirements can be met.

In one embodiment, the lighting segments are each equipped with an LED or an LED arrangement for generating light. In this way, an energy-efficient and long-lasting light can be provided.

The above configurations and further developments can be combined with one another in any way, if it makes sense. Further possible refinements, further developments and implementations of the invention also include combinations of features of the invention described previously or below with regard to the exemplary embodiments that are not explicitly mentioned. In particular, the person skilled in the art will also add individual aspects as improvements or additions to the respective basic form of the present invention.

CONTENTS OF THE DRAWING

Fig. 1

eine Leuchte gemäß einem ersten Ausführungsbeispiel der Erfindung, montiert in einem Raum im Deckenbereich, bei der Erzeugung eines ersten, schematisch dargestellten Lichteffekts;

Fig. 1A

eine schematische Illustration zur Veranschaulichung der Positionierung von Leuchtsegmenten bei der Leuchte der Fig. 1, in einer Draufsicht von einer Sichtseite der Leuchte her gesehen;

Fig. 2

die Leuchte der Fig. 1 bei der Erzeugung eines zweiten, schematisch dargestellten Lichteffekts;

Fig. 3

die Leuchte der Fig. 1 bei der Erzeugung eines dritten, schematisch dargestellten Lichteffekts;

Fig. 4

die Leuchte der Fig. 1 bei der Erzeugung eines vierten, schematisch dargestellten Lichteffekts;

Fig. 5

einen Reflektor eines Leuchtsegments für die Leuchte gemäß dem ersten Ausführungsbeispiel, in schematischer perspektivischer Ansicht, zusammen mit einer LED-Anordnung;

Fig. 5A

den Reflektor der Fig. 5 in einer schematischen Draufsicht von einer Sichtseite her gesehen;

Fig. 6

einen beispielhaften Lichtkegel, in einer seitlichen Ansicht;

Fig. 7

den beispielhaften Lichtkegel der Fig. 6 in einer Ansicht von vorne;

Fig. 8

eine schematisch vereinfachte Darstellung des Reflektors der Fig. 5 in einer ersten Schnittebene I-I;

Fig. 9

eine schematisch vereinfachte Darstellung des Reflektors der Fig. 5 in einer zweiten Schnittebene II-II;

Fig. 10

eine schematische Darstellung einer Montagesituation der Leuchte gemäß dem ersten Ausführungsbeispiel;

Fig. 11

eine schematische Darstellung einer Montagesituation einer Leuchte gemäß einem zweiten Ausführungsbeispiel;

Fig. 12

eine schematische Darstellung einer Montagesituation einer Leuchte gemäß einem dritten Ausführungsbeispiel;

Fig. 13

eine schematische Darstellung der Ansteuerung von Leuchtsegmenten über einen Bus;

Fig. 14

eine schematische Darstellung der Ansteuerung von Leuchtsegmenten in drahtloser Weise;

Fig. 15

eine schematisch stark vereinfachte Darstellung eines Leuchtsegments für die Leuchte der Fig. 1;

Fig. 16

eine Linse eines Leuchtsegments für eine Leuchte gemäß einem vierten Beispiel und beispielhaft einsetzbar in Abwandlungen der ersten bis dritten Ausführungsbeispiele, in schematischer perspektivischer Ansicht;

Fig. 17

eine Linse eines Leuchtsegments für eine Leuchte gemäß einer Variante des vierten Beispiels und beispielhaft einsetzbar in Abwandlungen der ersten bis dritten Ausführungsbeispiele, in schematischer perspektivischer Ansicht;

Fig. 18

eine Leuchte gemäß einem fünften Ausführungsbeispiel der Erfindung, montiert im Wandbereich in einem Raum, bei der Erzeugung eines schematisch dargestellten Lichteffekts; und

Fig. 19

eine Leuchte gemäß einem sechsten Ausführungsbeispiel der Erfindung, montiert im Wandbereich in einem Raum, bei der Erzeugung eines schematisch dargestellten Lichteffekts.

The invention is explained in more detail below using the exemplary embodiments given in the schematic figures of the drawings. Show here:

Fig. 1

a lamp according to a first exemplary embodiment of the invention, mounted in a room in the ceiling area, producing a first, schematically illustrated lighting effect;

Fig. 1A

a schematic illustration to illustrate the positioning of light segments in the luminaire Fig. 1 , seen in a top view from a visible side of the lamp;

Fig. 2

the lamp of the Fig. 1 in generating a second, schematically illustrated lighting effect;

Fig. 3

the lamp of the Fig. 1 in creating a third, schematically illustrated lighting effect;

Fig. 4

the lamp of the Fig. 1 in creating a fourth, schematically illustrated lighting effect;

Fig. 5

a reflector of a lighting segment for the lamp according to the first exemplary embodiment, in a schematic perspective view, together with an LED arrangement;

Fig. 5A

the reflector of the Fig. 5 seen in a schematic top view from a visible side;

Fig. 6

an exemplary light cone, in a side view;

Fig. 7

the exemplary light cone of the Fig. 6 in a front view;

Fig. 8

a schematically simplified representation of the reflector Fig. 5 in a first sectional plane II;

Fig. 9

a schematically simplified representation of the reflector Fig. 5 in a second sectional plane II-II;

Fig. 10

a schematic representation of an assembly situation of the lamp according to the first exemplary embodiment;

Fig. 11

a schematic representation of an assembly situation of a lamp according to a second exemplary embodiment;

Fig. 12

a schematic representation of an assembly situation of a lamp according to a third exemplary embodiment;

Fig. 13

a schematic representation of the control of lighting segments via a bus;

Fig. 14

a schematic representation of the control of light segments in a wireless manner;

Fig. 15

a schematically very simplified representation of a lighting segment for the lamp Fig. 1 ;

Fig. 16

a lens of a lighting segment for a lamp according to a fourth example and can be used as an example in modifications of the first to third exemplary embodiments, in a schematic perspective view;

Fig. 17

a lens of a lighting segment for a lamp according to a variant of the fourth example and can be used as an example in modifications of the first to third exemplary embodiments, in a schematic perspective view;

Fig. 18

a lamp according to a fifth embodiment of the invention, mounted in the wall area in a room, producing a schematically illustrated lighting effect; and

Fig. 19

a lamp according to a sixth embodiment of the invention, mounted in the wall area in a room, producing a schematically illustrated lighting effect.

The accompanying drawings are intended to provide further understanding of embodiments of the invention. They illustrate embodiments and, in connection with the description, serve to explain principles and concepts of the invention. Other embodiments and many of the advantages mentioned arise with regard to the drawings. The elements of the drawings are not necessarily shown to scale to one another.

In the figures of the drawings, identical, functionally identical or identically acting elements, features and components are each provided with the same reference numerals - unless otherwise stated.

DESCRIPTION OF EMBODIMENTS

Fig. 1 shows a lamp 1 according to a first exemplary embodiment. Furthermore shows Fig. 1 a room 2 in a building not shown in its entirety, the room 2 having a relatively narrow and elongated shape in the exemplary embodiment shown. For example, room 2 can be one Act within the building. However, room 2 can also be a different type of room, for example an office room, a business room, etc. The room 2 has a grid ceiling 3, which forms a suspended false ceiling. Furthermore, the room 2 has a first wall 4a, a second wall 4b and a floor 5. The lamp 1 is designed as a grid lamp for mounting in the grid ceiling 3 and in the in Fig. 1 Grid ceiling 3 is not shown in detail, but is only indicated.

The lamp 1 has a square lamp base body 6 and several light segments 7 and 8 which can be inserted into the lamp base body 6, whereby in Fig. 1 the lighting segments 7 and 8 are inserted into the lamp base body 6 at predefined positions 7a and 8a, see also Fig. 1A . For the sake of clarity, in Figures 1 and 1A not all of the light segments and positions are provided with reference numbers. As an example, lamp 1 has the Fig. 1, 1A four light segments 8 and twelve light segments 7. An outer contour 9 of each of the light segments 7 is in Fig. 1 square shaped. On the other hand, an outer contour 10 of each of the lighting segments 8 is circular. The outer contours 9 of the light segments 7 and the outer contours 10 of the light segments 8 are each designed the same.

Figures 1 and 1A also show that the positions 7a of the light segments 7 and the positions 8a of the light segments 8 are each arranged regularly. While the luminous segments 8 are arranged along a straight line, the luminous segments 7 are arranged at positions 7a which correspond to the crossing points of an orthogonal grid. In the first exemplary embodiment, however, the positions 8a also form further crossing points of the grid, which already defines the positions 7a, see Fig. 1A .

The light segments 7 and 8 thus form in their inserted state, see 1A and 2 , an arrangement 80 which extends in a plane E. Level E runs in 1, 1A and 2 in the assembled state of the lamp 1 shown there, horizontal and parallel to a plane in which the grid ceiling 3 extends, whereby the plane E and the plane of the grid ceiling 3 can coincide. For clarity, a direction H that is horizontal with respect to space 2 is in Fig. 1 drawn. The level E becomes, see 1A and 2 , spanned by two directions R1, R2, in the Fig. 1A perpendicular to each other and parallel to the grid ceiling 3, or in the plane of the grid ceiling 3.

The lighting segments 7 and 8 are each designed to be inserted into the lamp base body 6 and thereby to be inserted into it in a particularly detachable manner. For example, the lighting segments 7, 8 and/or the lamp base body 6 can be provided with suitable locking devices, by means of which it can be achieved that the lighting segments 7 and 8 each snap into place when inserted into the lamp base body 6 and are thus held, in particular releasably. It can be provided here that the latching insertion of the light segments 7, 8 is made possible in several rotational positions, for example in several positions rotated about an axis parallel to the vertical axis V, and in particular normal to the plane E, through the center of the light segment. Snapping insertion could be possible in a plurality of steps offset by a predefined angle, e.g. in 90 degree steps.

In the first exemplary embodiment, the lighting segments 7 and 8 are designed as interchangeable spotlights, in particular spots. Each of the light segments 7, 8 thus emits light in a directed manner and has a predefined radiation characteristic. However, the radiation characteristics of the lighting segments 7, 8 of the lamp 1 are not all identical, but the total amount of radiation characteristics of the lighting segments 7, 8 includes several different radiation characteristics.

Each of the lighting segments 7, 8 has one or more light sources that enable the directed emission of light through the lighting segments 7, 8. The light output of the light segments 7, 8 is the same for the light 1 Fig. 1 targeted at least in the in the Figures 1 to 4 can be switched and/or controlled in a schematically illustrated manner to create several different lighting effects. Switching and/or controlling the light output of a lighting segment 7, 8 can in particular include switching off the lighting segment completely, switching it on at full power, and, if necessary, switching on the lighting segment at a predefined power level below full power. Furthermore, can switching and/or controlling the light output also includes a continuous regulation of the light output in the sense of dimming.

In Fig. 1 the provision of a first lighting effect 11 by means of the lamp 1 according to the first exemplary embodiment is schematically sketched. For this purpose, two light segments 7, which are additionally provided with the reference number 7 'for better identification, were activated, while the other light segments 7, 8 are switched off. The two lighting segments 7' each have a radiation characteristic that makes it possible to jointly generate a light distribution by means of the two lighting segments 7', which enables direct illumination of a predefined area 11a of the floor 5 of the aisle 2. For this purpose, it is useful if the light segments 7 'generate an elongated light distribution that is better adapted to the elongated shape of the room 2 than a circular light cone. Efficient lighting is thus possible with one light 1.

In Fig. 2 Instead of the light segments 7 ', a single light segment 7 was used Fig. 2 marked with the reference number 7", activated, while the other light segments 7, 8 are switched off. The radiation characteristic of the light segment 7" differs from that of the light segments 7 '. The lighting segment 7" produces a round, for example circular or elliptical, light distribution on the floor 5 in an area 12a as a second light effect 12. In contrast to, for example, a larger-area illumination of the floor 5, as in Fig. 1 , is in Fig. 2 The lighting effect 12 creates a different atmosphere and the room 2 is different than in Fig. 1 staged. In Fig. 2 becomes a smaller and differently shaped predefined area 12a of the bottom 5 than in Fig. 1 directly lit. There can optionally be an object O, in in space 2 Fig. 2 shown in dashed lines, which stands, for example, on the floor 5 and is particularly illuminated and staged by means of the light effect 12. Instead of the object O, a person located in room 2 could be illuminated using the activated light segment 7".

In Fig. 3 two of the lighting segments 8 marked with the reference number 8' and two of the lighting segments 7 marked with the reference number 7"' are activated in order to generate a third lighting effect 13. The third lighting effect 13 includes two individual lighting effects 13' and 13" and includes a direct lighting both walls 4a, 4b of the room 2 in rather elongated illuminated areas 13a, 13b, but without the floor 5 being specifically illuminated directly. This in turn creates a different mood in room 2. If available, objects on the walls can be illuminated, or only the wall surface and structure can be illuminated to highlight room 2.

In Fig. 4 the light output of the light segments 7, 8 of the lamp 1 is switched and/or controlled in such a way that the light output in the Fig. 1, 2 and 3 schematically sketched lighting effects are combined and thus form a fourth lighting effect 14. The fourth lighting effect 14 thus combines the direct lighting of the walls 4a, 4b as in Fig. 3 with the illumination of the floor 5 according to Fig. 1 and with thus increased illumination of a circular or elliptical area 12a of the floor 5, within the floor area 11a already illuminated by means of the lighting segments 7 '.

To those in the Fig. 1, 2 , 3 and 4 To produce schematically illustrated lighting effects 11-14, individual light segments 7, 8 of the light 1 or subgroups of light segments 7, 8 are specifically switched on or off or their light output is specifically controlled.

In Fig. 1 The light segments 7 ', which can be designed in the same way, form a first subgroup 21 of light segments 7, which are activated at the same time in order to produce the first light effect 11 through the interaction of the light segments 7 'of the first subgroup 21. On the other hand, in Fig. 2 a single light segment 7" is activated to generate the second light effect 12.

In Fig. 3 The light segments became a second subgroup 22, which includes two light segments 8' and two light segments 7"', see Fig. 3 , activated simultaneously to generate the third lighting effect 13, with a third subgroup 22a, comprising the two, for example, similar lighting segments 8', illuminating the area 13a on the first wall 4a and a fourth subgroup 22b, comprising the two, for example, similar lighting segments 7"' , which serves to illuminate the area 13b on the second wall 4b. Thus, they generate Lighting segments 8' of the third subgroup 22a together produce the light effect 13' on the first wall 4a, while the light segments 7"' of the fourth subgroup 22b together produce the light effect 13" on the second wall 4b. The third light effect 13 is formed by the interaction of the light effects 13 ', 13".

In Fig. 4 the subgroups 21, 22a, 22b and the light segment 7" are activated at the same time to provide the light effect 14. The light segments 8 ', 7', 7", 7 "form the in Fig. 4 schematically outlined fourth subgroup 23.

Based on Fig. 1-4 It becomes clear that the lighting effects 11, 12, 13' and 13" are different from each other. The lighting effects 13 and 14 also differ from the individual lighting effects 11, 12, 13', 13" by combining some or all of the lighting effects 11 , 12, 13 ', 13" new, different lighting effects are created. The subgroups 21, 22a, 22b are disjoint and therefore do not contain any common lighting segments, whereas the subgroups 21, 22a and 22b are all three contained in the fifth subgroup 23.

It can therefore be seen that the lamp 1 advantageously enables the creation of lighting effects, particularly in vertical and horizontal sub-areas or areas of the room 2, for example in the area of the floor 5 and the walls 4a, 4b, without pivoting or pivoting to vary the lighting effects Twisting spots would be necessary. The light segments 7, 8 radiate from the horizontally extending arrangement 80 into the room 2, for example onto one or more area(s) of the walls 4a and/or 4b or the entire wall 4a and/or 4b, and alternatively or in combination therewith on one or more area(s) of the floor 5 or the entire floor 5. With a permanently mounted lamp 1 with a fixed arrangement 80 of the lighting segments 7, 8 laid out horizontally in the assembled state, a wide variety of lighting effects are achieved in the horizontal and in particular also in of the vertical can be generated. The lighting effects can be varied in a simple manner by switching and/or controlling the light output from individual lighting segments 7, 8 or groups of them.

According to the first exemplary embodiment, each of the lighting segments 7 and 8 has an optical component 25 designed as a reflector 30, among which Using the radiation characteristics of the lighting segment 7, 8 is achieved. In order to achieve different radiation characteristics, the lamp 1 is equipped with lighting segments 7 and 8 in such a way that the lamp 1 contains different reflectors 30 of this type. The lamp 1 has lighting segments 7, 8 with at least two different types of reflectors to produce at least two different radiation characteristics in order to be able to provide different lighting effects.

Figures 5 and 5A show schematically a reflector 30 for a lighting segment 7 of the lamp 1 according to the first exemplary embodiment. The lighting segment 7 can be, for example, one of the lighting segments 7 'of the first subgroup 21.

The reflector 30 is manufactured, for example, by injection molding and has a plurality of light-reflecting partial surfaces 31, 32, 33, 34, 35, 36, 37, 38. However, the production of the reflector 30 could alternatively be carried out using another manufacturing process, for example by forming a sheet metal blank. The two light-reflecting partial surfaces 31 and 33 are arranged opposite one another and are each designed as part of a standard reflector surface. Furthermore, the two light-reflecting partial surfaces 32 and 34 are arranged opposite one another and are each designed as a free-form surface. With the help of the free-form surfaces 32 and 34, the radiation characteristics of the lighting segment, which is equipped with the reflector 30, can be specifically influenced.

In Fig. 5 A light source 49 is also shown schematically as an example, which in this exemplary embodiment is designed as an LED arrangement 50 with several light-emitting diodes (LEDs) 51. The LED arrangement 50, like the reflector 30, forms part of a lighting segment and is in Fig. 5 for example, square, but it should be mentioned that the light source 49 can also be shaped differently, for example round. Furthermore, other light sources, such as halogen lamps, are conceivable instead of LEDs.

Furthermore, in Fig. 5 a visible side S of the reflector 30 facing the room 2 when the light segment is inserted into the lamp base body 6 is indicated. The reflector 30 opens to the visible side S in order to emit the light with the desired radiation characteristic. Fig. 5A shows the reflector 30 schematically in a top view from the visible side S.

The reflector 30 has four light-reflecting sides 30a, 30b, 30c, 30d, with adjacent light-reflecting partial surfaces 31-38 being connected to one another at one of several corners 39a-39d of the reflector 30. In detail, the partial areas 31 and 32 as well as 35 and 36 are each connected to one another at the corner 39a, the partial areas 32 and 33 as well as 36 and 37 are each connected to one another at the corner 39b, the partial areas 33 and 34 as well as 37 and 38 are each connected the corner 39c is connected to one another, and the partial surfaces 34 and 31 as well as 38 and 35 are each connected to one another at the corner 39d. The reference number 30u denotes the essentially rectangular, in particular square, outer outline of the reflector 30.

Fig. 5 also shows a central axis A of the reflector 30. The light-reflecting partial surfaces 31-38 enclose a reflector inner region 40, which tapers towards the LED arrangement 50 like a funnel, but with an angular cross-sectional shape with the four corners 39a-d. The light-reflecting partial surfaces 35-38, which are arranged further towards the visible side S, are more inclined to the central axis A, are therefore flatter when viewed from the visible side S, and together form a significantly larger opening angle than the light-reflecting partial surfaces 31-34.

The partial surfaces 32 and 34 designed as free-form surfaces are designed to bulge like a bulge towards the reflector inner region 40. The belly-like bulge is in Figures 5 and 5A designated by the reference number 45. Such a design of the free-form surfaces 32, 34 is particularly useful in order to adapt the light distribution and radiation characteristics of a lighting segment that has the reflector 30, for example to an elongated area to be illuminated. Figs. 6 and 7 schematically illustrate a light cone 60, as shown by means of a reflector 30 with light-reflecting partial surfaces 31-38 Figs. 5, 5A can be generated in two mutually normal directions. Shows in detail Fig. 6 a schematic side view of the light cone 60, while Fig. 7 shows it from the front. It becomes clear that the light cone 60 is different in the two viewing directions is shaped and, how in particular Fig. 7 makes it clear that it has an elongated shape. This enables easier and more efficient lighting of long rooms such as corridors, see Fig. 1-4 .

The shape of the light-reflecting partial surfaces 31-38 is also illustrated schematically and in a simplified manner Fig. 8 and 9. Fig. 8 shows the partial surfaces 31 and 33 designed as standard reflector surfaces, designed with a parabolic shape and in particular provided with a facet structure in a central section II through the reflector 30, cf. Fig. 5A . In which to cut the Fig. 8 normal midsection II-II of Fig. 9 , see. Fig. 5A , the partial surfaces 32 and 34 formed with belly-like bulges towards the inner area of the reflector 40 are visible in a schematically simplified manner, as are the schematically indicated intersection lines (shown in dotted lines) of the partial surfaces 32 and 34 with the other two partial surfaces 31 and 33 in the area of the corners 39a-d of the reflector 30.

Although the shape of the reflector 30 cannot be changed by a user, a number of different reflector shapes are preferably provided, by means of which the radiation characteristics of the lighting segment can be modified to suit different lighting effects. For some of the light segments, for example the 7" light segment Fig. 2 , a design of the reflector without free-form surfaces is possible, for example a reflector with a round cross-sectional inner region 40. For example, when initially configuring the lamp 1, a user can choose lighting segments 7, 8 from a large number of available lighting segments with different or the same outer contour and different reflector shapes to suit the intended use. For example, different reflectors 30 could be provided for illuminating aisles of different widths.

The Fig. 1-4 show several light segments 7 with the same square outer contour 9. However, the light segments 7 can have different reflector shapes, in other words, the shape of the reflector of the light segment 7 'differs from that of the reflector of the light segment 7" and this in turn differs from the shape of the reflector of the Light segment 7". The same outer contour 9 is not only aesthetically interesting, but also makes combination easier of light segments 7 with different radiation characteristics, especially since the outer contour 9 does not vary. If the lamp 1 is configured by selecting lighting segments from a larger number of available lighting segments, the essentially identical outer contour 9 can prove to be practical. If the outer contour 9 is identical, the outer outlines 30u of the assigned reflectors 30 can also be the same, for example for all of the light segments 7 Fig. 1-4 , even if the design of the partial areas 31-38 varies to provide different radiation characteristics.

The above statements regarding the design of the reflector 30 can be applied analogously to the light segments 8 with the outer contour 10, in which case the reflector z. B. can have a round outer outline.

The detachably inserted lighting segments 7 and 8 are each interchangeable, which means that changes to the lighting effects can still be made even after the initial configuration has been selected and, if necessary, a damaged lighting segment can easily be replaced with a new one.

The lamp 1 can be used as a whole when assembled Fig. 1-4 can still be finely adjustable or adjustable, for example to fine-tune the overall alignment of the lamp 1 and to compensate for assembly tolerances. This can be done by pivoting the lamp 1, for example around the two axes A', A", see Fig. 1 , especially within a limited angular range. Alternatively, however, such adjustability of the lamp 1 can be dispensed with, which further simplifies the structure of the lamp 1.

As mentioned, the lamp 1 according to the first exemplary embodiment is designed as a grid lamp. The lamp base body 6 is dimensioned in such a way that it can be accommodated in a grid of the grid ceiling 3. This schematically illustrates the Fig. 10 , which also shows profile elements 3a of the grid ceiling 3 schematically. The lamp base body 6, which can in particular comprise a suitable housing, can also be equipped with suitable devices in order to hold the lamp 1 in a grid of the grid ceiling 3 formed by the profile elements 3a.

An in Fig. 11 The second exemplary embodiment outlined differs from the first exemplary embodiment only in that the lamp 1 'is designed as a recessed lamp instead of as a grid lamp. For this purpose, the lamp 1' can have a lamp base body 6' adapted to the installation situation, which in turn can be designed with a suitable housing. A ceiling 3' of the room 2 can, for example, have a suitable recess for receiving the lamp base body 6'. In one example, the ceiling 3' can also be a suspended false ceiling, although in this example it does not form a grid ceiling.

A third, in Fig. 12 The illustrated embodiment differs from the first embodiment only in that the lamp 1" is designed in a suitable manner and in particular has a suitably designed lamp base body 6" in order to be used as a suspended lamp 1". In Fig. 12 the lamp base body 6" has an independent housing, which remains visible after the lamp 1" is hung. In Fig. 12 For example, the lamp 1" is suspended via ropes from a ceiling 3" in room 2. However, the 1" lamp can instead be suspended from the 3" ceiling via other suitable means.

A schematically very simplified representation of a lighting segment 7 or 8 for the lights according to the exemplary embodiments described above shows the Fig. 15 , whereby a section of the lamp base body 6, 6 'or 6" is shown schematically and in a simplified manner. The lighting segment 7, 8 has the optical component 25, the light source 49, for example in the form of the LED arrangement 50, an arrangement 100 of electrical and electronic components for supplying and controlling the light source 49, in particular having a converter, locking devices 110 for mechanically fastening and holding the light segment 7, 8 in the lamp base body 6, 6 ', or 6 "and electrical contacting devices 120 in particular for establishing an electrical connection with a Power supply, for example at mains voltage, e.g. B. 230 V. The luminaire base body 6, 6' or 6" is in turn provided with latching devices 111 and electrical contacting devices 121 on the luminaire base body side. The latching devices 111 are designed to latch with the latching devices 110 to engage in order to hold the lighting segment 7 or 8 on the lamp base body 6, 6 ', or 6", while the electrical contacting devices 121 are set up to come into contact with the contacting devices 120 and to establish an electrically conductive connection in order to to supply the lighting segment 7, 8 with electrical power. For this purpose, electrical supply lines can be provided in the lamp base body 6, 6 ', or 6", which for the sake of clarity are in Fig. 15 are not shown in detail.

The components of the arrangement 100, the light source 49 and the contacting means 120 could, for example, be arranged on a common circuit board or printed circuit board or instead be provided separately in a suitable housing.

In further exemplary embodiments of the invention, instead of the reflector 30, as described for the above exemplary embodiments, a lens can be used as an optical component 25 in order to influence the radiation characteristics of the respective lighting segment 7, 8. A lens 130 and a lens 230, which can be used, for example, in corresponding modifications of the first to third exemplary embodiments to influence the radiation characteristics, are shown in the Fig. 16 and 17 shown schematically, it being understood that the lens 130 or 230 can be adapted to the desired light effect and the desired radiation characteristics of the light segment 7 or 8 with regard to material and geometry.

The lens 130 according to a fourth example, see Fig. 16 , has on a front side 135, which corresponds to a visible side S and on which the lens 130 in the state of use in the lamp 1 emits light, a plate-shaped section 131, the outer outline of which in the example of Fig. 16 at the same time defines the outer outline 131u of the lens 130. In the example of the Fig. 16 the outer outline 131u of the lens 130 is square, although it is conceivable in variations of the example Fig. 16 To provide lenses with a round, for example circular, outer outline 131u. The choice of the outer outline 131u can also depend on how the positions 7a, 8a are provided in the lamp base body 6 and which outer contour 9, 10 of the respective lighting segment, even if lenses are used should have. Fig. 16 shows the lens 130 together with its indicated central axis AA.

In order to influence the radiation characteristic, which is achieved using the lens 130, the lens 130 has a recess 132 in the middle on the front side 135, which is provided for adjusting the radiation characteristic and thus serves as optics for controlling or influencing the radiation characteristic. The recess 132 is therefore in the lens 130 Fig. 16 depending on the desired radiation characteristics of the lighting segment that is equipped with the lens 130.

On a rear side 136 of the lens 130 opposite the plate-shaped section 131, the lens 130 has a further recess 133, in which the light source 49, preferably an LED or LED arrangement, is arranged in the light segment 7 or 8 when the lens 130 is in use.

Furthermore, the lens 130 has two fixing sections 134 on the back 136, which are designed, for example, like a bolt or suppository and serve to fix the lens 130, in particular on a circuit board. However, other types of fixation of the lens 130 in the lighting segment 7, 8, in particular on a circuit board which also carries the LED or LED arrangement, are also conceivable.

In a variant of the fourth example, a lens 230 could be used instead of the lens 130, see Fig. 17 , be provided. The lens 230 of the Fig. 17 differs from the lens 130 of the Fig. 16 only because the lens 230 on the front 135 is not provided with a recess 132 to influence the radiation characteristics. If the desired radiation characteristics of the light segment 7 or 8 do not require a recess 132, this can be omitted.

According to the fourth example described above and the explained variant thereof, the luminous segments 7 and the luminous segments 8 each have a lens 130 or 230 instead of the reflector 30, this example not being part of the invention, but may be useful for understanding the invention. If necessary, the lighting segment 7, 8 is then suitably set up to replace the lens 130 or 230 to be able to attach the reflector in a suitable manner. In addition, however, the lamp according to the fourth example and its variant is designed as described above for the first exemplary embodiment, whereby the lamps according to the fourth example and its variant can also be modified as explained above for the second and third exemplary embodiments.

A lamp 1001' according to a fifth exemplary embodiment and a lamp 1001" according to a sixth exemplary embodiment are shown Figures 18 and 19 . The lights 1001' and 1001" each represent modifications of the exemplary embodiments described above and their variants, so that reference is made to the above statements except for the differences explained below.

The lamp 1001' is installed in the wall area in a room 1002. The room 1002 has a ceiling 1003, a floor 1005 and at least a first wall 1004a and a second wall 1004b 'opposite this. The lamp 1001' is installed in the second wall 1004b', with the lamp 1001' having a lamp base body 1006' adapted to the installation situation in the wall 1004b'. The lamp base body 1006 'is in the exemplary embodiment Fig. 18 formed with a housing that is set up for installation in the wall 1004b '. The lamp base body 1006' is in Fig. 18 accommodated in a suitable recess in the wall 1004b' and held with the aid of holding means, not shown.

In the sixth exemplary embodiment Fig. 19 The lamp 1001" is also installed in the wall area. Again, the room 1002 has two walls 1004a and 1004b". The lamp 1001" is mounted on the surface of the wall 1004b". The lamp 1001" is designed for this purpose and in particular has a lamp base body 1006" in order to be used as a surface-mounted or surface-mounted lamp 1001". The lamp base body 1006" is Fig. 19 has an independent housing, which remains visible after mounting the lamp 1001" on the wall 1004b".

As well in Fig. 18 as well as in Fig. 19 the generation of a light effect 1011 on the first wall 1004a is shown schematically. But it goes without saying that by means of the lamp 1001' and the lamp 1001" each, analogous to the generation of light effects by the lamps 1, 1', 1", different lighting effects can be generated. Here, in the exemplary embodiments Fig. 18, 19 Additionally, using suitable lighting segments 7, 8, lighting effects can be generated not only on the wall 1004a, but also on the floor 1005 and/or on the ceiling 1003. In this regard, please refer to the above statements.

In the case of the lamp 1001', the light segments 7 and 8 form in their inserted state, see Fig. 18 , an arrangement extending in a plane E', the plane E' being in Fig. 18 When the lamp 1001' is mounted, it runs vertically and parallel to a plane in which the wall 1004b' extends. In the case of a built-in lamp 1001', the plane E' and the plane of the wall 1004b' can coincide. The plane E' is spanned by two directions R1', R2', which are in Fig. 18 perpendicular to each other and parallel to the wall 1004b ', or in the plane of the wall 1004b'. Also with the 1001" lamp Fig. 19 the light segments 7 and 8 form an arrangement that is in one Fig. 19 vertical plane, not shown, extends parallel to the wall 1004b".

In particular, it should be mentioned that the above statements apply Fig. 15 can also be used on the luminaires 1001', 1001".

The switching and/or control of the light output of the light segments 7, 8 described above, individually, combined in disjoint and/or overlapping subgroups, or all together, can be achieved in a variant (not shown) of all of the exemplary embodiments described above by means of leading to the individual light segments, live cables and switches or dimmers. For this purpose, for example, subgroups to be switched can be defined when installing the luminaire 1, 1', 1", 1001', 1001" and a suitable number of switches or dimmers can be provided for these subgroups. The electrical connection of the lighting segments 7, 8 with the switches or dimmers then determines whether and how the lighting segments 7, 8 can all be switched or controlled together or individually or in subgroups with regard to their light output.

In a further variant of the exemplary embodiments described above, however, the switching and/or controlling of the light output of the light segments 7, 8 takes place in an in Fig. 13 schematically sketched via a bus 70. Each of the light segments 7, 8 is connected, for example, to a power supply, which in Fig. 13 is not shown in detail. The activation, deactivation or dimming of the light segments 7, 8 takes place in the variant Fig. 13 for example with the help of addresses assigned to the light segments 7, 8 and/or a suitable protocol as well as control and/or switching instructions transported in a suitable form via the bus 70. The light segments 7, 8 can thus be addressed in a particularly flexible and variable manner. Alternatively, a control network can be used instead of bus 70. Each of the light segments 7, 8, see Fig. 13 , has a device 71 which makes it possible to receive control signals for switching and/or controlling the light output of the lighting segment 7 or 8 by wire via the bus 70. Here, the device 71 includes an interface for connection to the bus 70. Alternatively, the interface can be designed for connection to a wired network.

In a further, preferred variant of the exemplary embodiments described above, the control and/or switching of the light output of the individual light segments 7, 8 is not wired, but wireless, which avoids the laying of lines. This is in Fig. 14 schematically sketched. Each of the lighting segments 7 and 8 has a communication device 72, which enables control signals to be received wirelessly for switching and/or controlling the light output. In particular, the communication device 72 includes an interface for communication via a wireless protocol.

It should be mentioned that, in addition to the devices 71 or 72, each of the lighting segments 7, 8 can also have a computing device for processing the control signals and a driver component that enables the emitted light power to be varied in accordance with the control signals.

The devices 71 and 72 as well as the computing device and the driver component can be part of the in Fig. 15 schematically indicated arrangement 100.

Furthermore, it should be mentioned that in the exemplary embodiments described above, the lighting segments 7, 8 and the lamp base body 6, 6 ', 6", 1006' or 1006" contacting means 120, 121, see Fig. 15 , which are not only suitable for establishing electrical contact of the lighting segments 7, 8 with a power supply, but, if wired control is to be possible, also make it possible, for example, to establish contact with a data line, for example for the bus 70, to produce. Alternatively, it would be conceivable to provide separate contacting means for the data line.

Although the present invention has been fully described above using preferred exemplary embodiments, it is not limited to this but can be modified in a variety of ways.

In particular, the invention is not limited to a lamp with the number and combination of light segments specified in the exemplary embodiments. More or fewer lighting segments could be provided, for example all of which could have a rectangular or square outer contour. Many numbers and combinations of light segments are conceivable.

Reference symbol list

1

lamp

1'

lamp

1"

lamp

2

Space

3

grid ceiling

3'

Ceiling

3"

Ceiling

3a

Profile element (grid ceiling)

4a

first wall

4b

second wall

5

Floor

6

Lamp base body

6'

Lamp base body

6"

Lamp base body

7

Light segment

7'

activated light segment

7"

activated light segment

7‴

activated light segment

7a

position

8th

Light segment

8th'

activated light segment

8a

position

9

Outer contour (light segment)

10

Outer contour (light segment)

11

first light effect

11a

area (floor)

12

second light effect

12a

area (floor)

13

third light effect

13'

Light effect

13"

Light effect

13a

area (wall)

13b

area (wall)

14

fourth light effect

21

first subgroup

22

second subgroup

22a

third subgroup

22b

fourth subgroup

23

fifth subgroup

25

optical component

30

reflector

30a

light-reflecting side (reflector)

30b

light-reflecting side (reflector)

30c

light-reflecting side (reflector)

30d

light-reflecting side (reflector)

30u

Outer outline (reflector)

31

light-reflecting partial surface (reflector)

32

light-reflecting partial surface (reflector)

33

light-reflecting partial surface (reflector)

34

light-reflecting partial surface (reflector)

35

light-reflecting partial surface (reflector)

36

light-reflecting partial surface (reflector)

37

light-reflecting partial surface (reflector)

38

light-reflecting partial surface (reflector)

39a

corner (reflector)

39b

corner (reflector)

39c

corner (reflector)

39d

corner (reflector)

40

Interior reflector area

45

belly-like protrusion

49

light source

50

LED arrangement

51

LED

60

cone of light

70

bus

71

Furnishings

72

Communication facility

80

arrangement

100

arrangement

110

Locking device (light segment side)

111

Locking device (luminaire base body side)

120

Contacting device (lighting segment side)

121

Contacting device (luminaire base body side)

130

lens

131

plate-shaped section (lens)

131u

Outer outline (lens)

132

recess (lens)

133

recess (lens)

134

Fixing section (lens)

135

front

136

back

230

lens

1001'

lamp

1001"

lamp

1002

Space

1003

Ceiling

1004a

first wall

1004b'

second wall

1004b"

second wall

1005

Floor

1006'

Lamp base body

1006"

Lamp base body

1011

Light effect

A

Central axis (reflector)

AA

Central axis (lens)

A'

Swivel axis for fine adjustment of the lamp

A"

Swivel axis for fine adjustment of the lamp

E

level

E'

level

H

horizontal direction (space)

O

object

R1

Direction

R1'

Direction

R2

Direction

R2'

Direction

S

visible side

v

vertical direction (space)

Claims (15)

1. Light (1; 1'; 1"; 1001'; 1001") for illuminating a space in a building and/or for illuminating an item located in a room or a person located in a room,

   wherein the light (1; 1'; 1"; 1001'; 1001") comprises a light base body (6; 6'; 6"; 1006'; 1006") and lighting segments (7, 8) which are inserted into the light base body (6; 6'; 6"; 1006'; 1006");

   wherein each of the lighting segments (7, 8) emits light in a directional manner and has a predefined emission characteristic;

   wherein the emission characteristics of the lighting segments (7, 8) comprise at least two different emission characteristics;

   wherein the lighting segments (7, 8) each have an optical component (25) by means of which the emission characteristic of the lighting segment (7, 8) is achieved in each case; wherein at least one of the lighting segments (7, 8) has a reflector (30) as an optical component (25), the reflector (30) having a quadrilateral outer contour (30u), the reflector (30) having a plurality of light-reflecting partial surfaces (31-34) and in each case adjacent ones of the light-reflecting partial surfaces (31-34) being joined together at one of a plurality of corners (39a-39d) of the reflector (30), and of the plurality of light-reflecting partial surfaces (31-34) of the reflector (30) at least one (31, 33) being designed as a standard reflector surface or as part of a standard reflector surface and at least one (32, 34) being designed as a free-form surface;

   wherein the inserted lighting segments (7, 8) form an array (80) extending in a plane (E; E') and the lighting segments (7, 8) are fixed in orientation; and

   wherein the light (1; 1'; 1"; 1001'; 1001") is configured for an arrangement of the lights (1; 1'; 1"; 1001'; 1001") in the ceiling region in a room (2) in a building and/or for an arrangement of the light (1001'; 1001") in the wall region in the room (1002) in the building.
2. Light according to claim 1,
   characterised in that the lighting segments (7, 8) can be inserted into the light base body (6; 6'; 6"; 1006'; 1006") at predefined, for example regularly arranged, positions (7a, 8a) in a removable manner.
3. Light according to any of the preceding claims,
   characterised in that the lighting segments (7, 8) can be inserted into the light base body (6; 6'; 6"; 1006'; 1006") so that the inserted lighting segments (7, 8) form an array (80) extending in a plane (E; E') which is horizontal or vertical in a mounted state of the light (1; 1'; 1").
4. Light according to at least one of the preceding claims,
   characterised in that the light (1; 1'; 1"; 1001'; 1001") is outfitted with lighting segments (7, 8) so that the light (1; 1'; 1"; 1001'; 1001") has such optical components (25), by means of which the emission characteristic of the lighting segment (7, 8) is achieved in each case, of at least two differently designed types.
5. Light according to any of the preceding claims,
   characterised in that at least two (31, 33) of the light-reflecting partial surfaces are designed in each case as a standard reflector surface or as part of a standard reflector surface and at least two (32, 34) of the light-reflecting partial surfaces are designed in each case as a free-form surface; and/or in that the reflector (30) has two light-reflecting partial surfaces (31, 33) which are designed in each case as a standard reflector surface or as part of a standard reflector face and which are arranged opposite one another, and the reflector (30) further has two light-reflecting partial surfaces (32, 34) which are designed as free-form surfaces and which are arranged opposite one another.
6. Light according to at least one of the preceding claims,
   characterised in that the reflector (30) is designed with four light-reflecting sides (30-30d); and/or in that the reflector (30) has a central axis (A), and light-reflecting partial faces (35-38) arranged further towards a visible side (S) of the reflector (30) are at a greater inclination than the plurality of light-reflecting partial faces (31-34) with respect to the central axis (A).
7. Light according to at least one of the preceding claims,
   characterised in that at least one (32, 34) of the free-form surfaces is designed as a bulging convexity (45) towards a reflector interior region (40).
8. Light according to at least one of the preceding claims,
   characterised in that a plurality or all of the lighting segments (7, 8) each have a reflector (30) as an optical component (25) and the outer contour (30u) of the reflector (30) is square, and in particular in that a plurality of lighting segments (7, 8) are combined in the light (1; 1'; 1"; 1001'; 1001") and have different reflectors (30), each designed with at least one light-reflecting partial surface (32, 34) designed as a free-form surface.
9. Light according to at least one of the preceding claims,
   characterised in that at least one of the lighting segments (7, 8) has a lens (130; 230) as an optical component (25) or in that a plurality of the lighting segments (7, 8) each have a lens (130; 230) as an optical component (25).
10. Light according to at least one of the preceding claims,
    characterised in that the output of light of the lighting segments (7, 8) can be switched and/or controlled specifically for individual lighting segments (7") and/or for subgroups (21, 22a, 22b, 23) of the lighting segments (7, 8) so that different light effects (11, 12, 13, 14, 1011) can be achieved by means of the light (1; 1'; 1"; 1001'; 1001").
11. Light according to claim 10,
    characterised in that the output of light of the lighting segments (7, 8) can be switched and/or controlled so that a plurality of, in particular identically designed, lighting segments (7') of a first subgroup (21) of the lighting segments (7, 8) can be activated at the same time to put out light, in order to create a first light effect (11; 1011) by the interaction of the lighting segments (7') of the first subgroup (21), and in that moreover several, in particular identically designed, lighting segments (8', 7"') of another subgroup (22a, 22b, 22) of the lighting segments (7, 8) can be activated at the same time to put out light, in order to create another light effect (13', 13", 13) by the interaction of the lighting segments (8', 7‴) of the other subgroup (22a, 22b, 22), which is different from the first light effect (11; 1011).
12. Light according to either claim 10 or claim 11,
    characterised in that the light effects comprise

    - a specific illumination of a wall (4a, 4b) or a predefined area (13a, 13b) of a wall (4a, 4b), and/or

    - a specific illumination of a floor (5) or a predefined area (11a, 12a) of a floor (5), and/or

    - a specific illumination of an object (O) placed in the room (2) or a person located in the room (2);

    or in that the light effects comprise

    - a specific illumination of a wall (1004a) or a predefined area of a wall (1004a), and/or

    - a specific illumination of a floor (1005) or a predefined area of a floor (1005), and/or

    - a specific illumination of a ceiling (1003) or a predefined area of a ceiling (1003), and/or

    - a specific illumination of an object placed in the room (1002) or a person located in the room.
13. Light according to at least one of the preceding claims,
    characterised in that the lighting segments (7, 8) each have a device which makes it possible to receive control signals for switching and/or controlling the output of light of the lighting segment (7, 8) in a wireless and/or wired manner, and in that the lighting segments (7, 8) are designed to switch and/or control the output of light (7, 8) in accordance with the control signals.
14. Light according to claim 13,
    characterised in that the lighting segments (7, 8) each comprise a communication device (72), which enables a reception of the control signals in a wireless manner and in particular comprises an interface for communication using a wireless protocol, and/or in that the lighting segments (7, 8) each comprise an interface for connection to a wired bus or wired network which enables the reception of the control signals.
15. Light according to at least one of the preceding claims,
    characterised in that the light (1) is designed as a grid light for arrangement in a grid ceiling (3), or the light (1'; 1001') is designed as an installed light, or the light (1") is designed for use as a suspended light, or the light (1001") is designed for mounting on a wall (1004b").

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