EP3211300A1 - Lighting arrangement with at least two optical elements - Google Patents

Abstract

The present invention relates to a lighting arrangement (10), in particular a security lighting comprising at least one lens arrangement (20) on which at least two different optical elements (21, 22, 23) are arranged, at least one below the lens arrangement (20 at least one of the assemblies (20, 30) is movable between a detent position and a rotational position by means of an actuating mechanism (40, 50), wherein the at least one movable assembly (20) 30) in the latched position rotatably with the other arrangement (2O) is engaged and rotatably arranged in the rotational position about an axis of rotation (16), and wherein by rotating the at least one arrangement (30) at least one light emitting diode (31) of the light emitting diodes Arrangement (30) can be arranged under one of the optical elements (21, 22, 23) of the lens arrangement (2O) in such a way that light passes through the light source (31 ) arranged optical element (21, 22, 23) is feasible.

Description

1. Field of the invention

The present invention relates to a lighting arrangement, in particular a security lighting, with at least two different optical elements.

2 . background

Various embodiments of lighting arrangements which can be used as security lighting are known from the prior art. Safety lighting is essentially distinguished according to its functions, in particular a distinction is made between safety lighting for escape routes, safety lighting for work areas with special hazards and anti-panic lighting.

A safety lighting for escape routes should emphasize escape routes lighting technology and provide adequate viewing conditions on this and also ensure that appropriate extinguishing and safety devices are easy to find.

A safety lighting for work areas with special risk, on the other hand, allow safe exit from the workplace and lead to appropriate escape routes. In addition, it is intended to ensure that work can be stopped safely at workplaces with a special hazard (for example in test laboratories, construction sites, etc.).

Anti-panic lighting should provide a subjective sense of security and thus reduce the risk of panic, allowing orientation, especially in large halls and rooms, thereby safely achieving escape routes.

Because of these different requirement profiles or (lighting) functions to be provided, different illuminations with different optical elements are used in the prior art.

In the prior art safety luminaires, in particular with LED modules, are known to which different optics can be attached to thereby adjust the lighting to the respective installation location and to the respective (lighting) function (eg escape route, workplace and anti-panic) to be able to.

The mountable / interchangeable optics known in the art are attached to the LED module by means of reversible fasteners (e.g.

In such embodiments, however, it is problematic that during a change of the optics or when installing the optics direct access to the LEDs is possible, which in the worst case can lead to damage or destruction of the LED or to the fact that the operator injured.

In addition, the optics may be subjected to mechanical stresses during replacement or assembly, which may result in damage (e.g., scratching). Finally, in such luminaires with interchangeable optics there is the risk that the optics will not be placed above a corresponding light-emitting diode or not optimally above a corresponding light-emitting diode, which may lead to an impairment of the light emission of the illumination.

In these known lighting, which are adapted by means of various individual components to the respective lighting situation, there is also the need to produce and stockpile a significant number of individual components, which represents a particular disadvantage, especially for the individual distribution levels, since such a storage of individual components high organizational effort (eg due to the different order and inventory number) brings with it, and in addition relatively large storage areas are claimed. To offer the end customer several types of lighting, often also several covers are supplied, of which the unused are usually disposed of, which is environmentally disadvantageous.

Finally, in the EP 2 886 944 A1 discloses a security lighting, in which two mutually rotatable arrangements are provided on a common axis of rotation. One arrangement comprises different optical elements, the other arrangement comprises light-emitting diodes arranged on the latter. The two arrangements can be rotated more or less freely against each other, so that the light-emitting diodes can be arranged under the respective optical elements. When turning the two arrangements, it may happen, however, that the LEDs are not positioned exactly below the respective optical element, which can lead to an impairment of the light output or leaves in particular the handling and reliability of such security lighting room for improvement.

Based on this prior art, the present invention has the object to provide a lighting arrangement, in particular a security lighting, in which the above-mentioned disadvantages of the prior art are eliminated or reduced.

In particular, the present invention has the object to provide a lighting arrangement, with the different lighting requirements (with different lighting functions), in particular in the field of safety technology, can be solved without having to assemble different individual components (in particular optics) to a respective lighting arrangement. Furthermore, in particular a simpler and more reliable handling of such a lighting arrangement is to be provided.

These and other objects, which will become apparent upon reading the following description or may be recognized by those skilled in the art, are achieved by the subject-matter of the independent claims. The dependent claims further form the central idea of the present invention in a particularly advantageous manner.

3 . Detailed description of the invention

A lighting arrangement according to the invention, in particular a security lighting comprises:

• zumindest eine Linsen-Anordnung, auf der zumindest zwei unterschiedliche optische Elemente angeordnet sind;
• zumindest eine unter der Linsen-Anordnung angeordnete Leuchtdioden-Anordnung mit zumindest einer Leuchtdiode;
• wobei zumindest eine der Anordnungen mittels eines Betätigungsmechanismus zwischen einer Rastposition und einer Drehposition bewegbar ist;
• wobei die zumindest eine bewegbare Anordnung in der Rastposition drehfest mit der anderen Anordnung in Eingriff steht und in der Drehposition drehbar um eine Drehachse angeordnet ist;
• wobei durch ein Verdrehen der zumindest einen Anordnung zumindest eine Leuchtdiode der Leuchtdioden-Anordnung unter einem der optischen Elemente der Linsen-Anordnung derart anordenbar ist, dass Licht durch das über der Leuchtdiode angeordnete optische Element führbar ist.

Lighting arrangement, in particular a security lighting, comprising:

• at least one lens arrangement, on which at least two different optical elements are arranged;
• at least one arranged under the lens arrangement light emitting diode array with at least one light emitting diode;
• wherein at least one of the assemblies is movable between a detent position and a rotational position by means of an actuating mechanism;
• wherein the at least one movable assembly rotatably in the latching position with the other arrangement is engaged and is arranged in the rotational position rotatable about an axis of rotation;
• wherein by rotating the at least one arrangement, at least one light-emitting diode of the light-emitting diode arrangement can be arranged under one of the optical elements of the lens arrangement in such a way that light can be guided through the optical element arranged above the light-emitting diode.

In other words, an illumination arrangement is provided on which the optics (optical elements) necessary for the different illumination functions (which can occur in particular in the area of the safety illumination) are already mounted and which can be selected by moving the movable arrangement. Due to this configuration of a lighting arrangement according to the invention, there is therefore no longer any need to manufacture or stockpile various individual components. Thus, no separate components must be attached to a lighting, so that the above-mentioned disadvantages can be avoided and, for example, therefore, a quantity of items to be stored in wholesale can be significantly reduced. To select the desired optical element, the movable arrangement is first to be moved by means of the actuating mechanism from the detent position to the rotational position in which it can then be rotated to the other arrangement (and thus to the various optical elements), preferably also by means of the actuating mechanism.

Finally, by the actuating mechanism (for example correspondingly designed push buttons or the like) an easy-to-use possibility can be provided for the operator to first move the movable assembly from the detent position to the rotational position and then rotate the movable assembly to the desired position. Also, by the rotationally fixed (fixed) engagement of the movable assembly in the detent position unintentional rotation can be prevented. For example, a technician can adjust the lighting arrangement before it is installed and then assemble it without the selected setting being inadvertently adjusted again during assembly.

Preferably, the movable assembly, which is movable between a detent position and a rotational position, the light-emitting diode array. Further, it is preferred that the movable assembly not only moves from the latching to the rotational position by the actuating mechanism, but also that the movable assembly can be rotated relative to the other assembly.

Preferably, the arrangements in plan view are circular or polygonal, in particular rectangular. Alternatively, other forms for the arrangements into consideration, as long as it allows a rotation of the movable assembly and thereby a desired superimposed arrange the light-emitting diodes and the optical elements to each other. For example, the lens arrangement may be circular, wherein the respective optical arrangements are arranged on a more or less common radius, and the light-emitting diode arrangement (which preferably comprises two light emitting diodes) may be rectangular, wherein the light-emitting diodes are arranged on this preferably opposite are, so that they can be arranged under respectively corresponding optical elements opposite.

Advantageously, the lens arrangement comprises at least three different optical elements, which are arranged with the same radii with respect to the axis of rotation about which the movable arrangement is rotatable in the rotational position, wherein the optical elements are preferably arranged at equal angular intervals. Preferably, by a A lighting function for an escape route, an anti-panic lighting or emergency lighting for work areas are provided with particular danger according to the invention lighting arrangement. The optical elements can thereby for example provide different scattering, radiation directions, intensity distributions and / or illumination perceptions. In particular, the DIN EN 1838 specifies the different requirements for the respective safety lighting for the above-mentioned different functions (escape route, workplace, anti-panic), in particular with regard to the uniformity of the light distribution, the illumination, and the light intensity. For example, spherical lenses, aspherical lenses, optical gratings or stepped lenses can be used as optical elements of the lens arrangement. Furthermore, the optical elements are preferably designed such that they form a cavity (a so-called lens pot), in which a light-emitting diode of the light-emitting diode arrangement can be arranged in the latching position of the movable arrangement.

Preferably, the lens assembly comprises at least three different pairs of identical optical elements, with the optical elements of the respective pairs disposed opposite one another on the lens assembly, and preferably wherein the optical elements are evenly spaced angularly about 60 ° on the lens assembly are arranged. In particular, in this case, it is preferred that the light-emitting diode arrangement comprises at least two light-emitting diodes which are arranged such that they can be arranged under two optical elements of a respective pair of identical optical elements.

Preferably, the arrangements comprise correspondingly formed spring-groove means for providing a rotationally fixed engagement of the arrangements in the latching position of the movable arrangement. For example, a pin element (which is provided, for example, parallel to the axis of rotation) may be provided on one of the arrangements, that in the latching position in a respective receptacle of the other arrangement is introduced when the movable assembly is moved from the rotational position to the latching position.

In a first preferred embodiment of the actuating mechanism, this comprises at least two oppositely arranged movable Actuating members, each comprising at least one ramp portion, along which the movable assembly is feasible to move the movable assembly upon actuation of the actuating member from the detent position to the rotational position, and wherein the at least one movable assembly is rotatable in the rotational position by means of the actuating elements.

Upon actuation of the actuating elements (which may be formed, for example, as push buttons), the movable assembly can thus be moved along the ramp sections, so that it is present from the detent position (in which there is a rotationally fixed engagement of the arrangements, preferably by the pin member that in a receptacle is) can be moved to the rotational position (in which the arrangements are rotatably mounted, in particular when the pin member has been guided out of the receptacle). In this regard, it is further preferred that the movable arrangement comprises guide means, in particular grooves or notches, in which the respective ramp section of the actuating elements can be guided during actuation. Thereby, on the one hand, jamming or the like can be avoided when the movable assembly is moved along the ramp portions, and on the other hand, an engagement can be provided to turn the movable assembly.

Advantageously, the lighting arrangement further comprises guide slots, in which the actuating elements can be guided during rotation of the movable arrangement. Such guide slots can be provided for example in an adjacent housing portion of the lighting arrangement.

Preferably, the actuators are spring-loaded to move them to their initial position upon actuation and to move the moveable assembly to the detent position, the moveable assembly preferably also being spring-loaded to maintain the moveable assembly in the detent position. Separate springs can be provided for the return while the actuators may be connected to each other by means of a common spring which extends apart from them.

Preferably, the movable assembly comprises a plurality of guide means, with which the actuating elements can be brought into engagement, wherein the Guide means are arranged corresponding to the optical elements, and wherein the guide slots of the adjacent housing portion are formed such that a defined rotation of the movable assembly can be provided from a first position to a second position, preferably at the first position, a first optical element and at the second position, an adjacent second optical element is arranged. In this case, it is preferable that the actuating elements are connected to a restoring element, in particular a return spring, in order to move the actuating elements from the second position to the first position after the movable arrangement has been rotated from the first position to the second position and into the detent position has been moved. In other words, this makes it possible to provide a kind of driving solution and to be able to provide a rotation of the movable arrangement by a reciprocating movement of the actuating elements between the first and the second position.

In a second preferred embodiment of the actuating mechanism, this comprises a rotary member with a turntable, on which the movable assembly is arranged, and wherein the rotary member has lateral pin members which can engage in correspondingly formed vertical slots of the lighting arrangement, so that the rotary member, on which the movable arrangement is arranged rotatably in the detent position is arranged. In other words, it is preferred that the movable arrangement (preferably the light-emitting diode arrangement) is arranged on the turntable (for example, screwed or glued), so that upon rotation of the turntable and the movable assembly is rotated. The preferably laterally provided on the turntable pin can thereby in vertical slots, which are provided for example on an adjacent housing portion of the lighting device, are introduced. Corresponding vertical slots in the housing section are provided for each position of an optical element, so that different detent positions are given by the slots, in which the light-emitting diodes is arranged appropriately under a corresponding optical element.

In this context, it is further preferred that an engagement element, in particular a rod element or a rod-shaped handle, is arranged on the rotary element, with which the pin elements of the rotary element of the Slits of the lighting arrangement can be pulled out and the rotary member can be moved with the movable assembly of the detent position to the rotational position, wherein lighting arrangement comprises a circumferential groove into which the pin members are guided during rotation in the rotational position. Preferably, the rotary element, in particular by means of a spring element arranged on the rod element, is spring-loaded in order to press the pin elements of the rotary element into the vertical slots of the illumination arrangement or to hold them in the correct position.

In other words, during a rotation of the movable arrangement, first the lateral pin elements of the rotary element are pulled out of the vertical slots, preferably by means of the rod element, so that the movable arrangement is now arranged in the rotational position. Subsequently, the rotary element (with the movable arrangement arranged thereon) is rotated such that the light-emitting diode or the light-emitting diodes is arranged below the desired optical element. Finally, the lateral pin members are again guided in the vertical slots, so that the rotary member with the movable assembly is again arranged in the latching position, wherein the lateral pin members are pressed in the latching position preferably by a spring in the vertical slots to unintentional displacement in to prevent the rotational position.

4. Description of preferred embodiments

Figur 1

eine schematische Ansicht einer erfindungsgemäßen Beleuchtungsanordnung;

Figur 2

eine schematische Ansicht der in Figur 1 gezeigten Beleuchtungsanordnung in verschiedenen Einbausituationen;

Figur 3

eine schematische Draufsicht auf eine Linsen-Anordnung;

Figur 4

eine schematische Querschnittsansicht der Beleuchtungsanordnung mit einer ersten Ausführungsform eines Betätigungsmechanismus;

Figur 5

eine schematische Querschnittsansicht einer bewegbaren Anordnung, die mit einem Betätigungselement des Betätigungsmechanismus in Eingriff steht;

Figur 6

eine schematische Ansicht eines Federelements zur Rückstellung der Betätigungselemente des Betätigungsmechanismus;

Figur 7

eine schematische Ansicht einer Linsen-Anordnung und einer Leuchtdioden-Anordnung mit zwei Leichtdioden;

Figur 8

eine schematische Ansicht eines weiteren Federelements zur Rückstellung der Betätigungselemente;

Figur 9

eine schematische Ansicht eines Drehelements einer zweiten Ausführungsform eines Betätigungsmechanismus;

Figur 10

eine schematische Ansicht eines Gehäuseabschnitts der Beleuchtungsanordnung, in dem das in Figur 9 gezeigte Drehelement aufgenommen werden kann;

Figur 11

eine schematische Querschnittsansicht des Gehäuseabschnitts im Bereich eines Einführungsschlitzes;

Figur 12

eine schematische Querschnittsansicht des Gehäuseabschnitts;

Figur 13

eine schematische Querschnittsansicht des Gehäuseabschnitts mit einem darin aufgenommenen Drehelement; und

Figur 14

eine schematische Querschnittsansicht im Bereich einer Leuchtdiode.

A detailed description of the figures is given below, in which:

FIG. 1

a schematic view of a lighting arrangement according to the invention;

FIG. 2

a schematic view of in FIG. 1 shown lighting arrangement in different installation situations;

FIG. 3

a schematic plan view of a lens assembly;

FIG. 4

a schematic cross-sectional view of the lighting arrangement with a first embodiment of an actuating mechanism;

FIG. 5

a schematic cross-sectional view of a movable assembly which is in engagement with an actuating element of the actuating mechanism;

FIG. 6

a schematic view of a spring element for returning the actuating elements of the actuating mechanism;

FIG. 7

a schematic view of a lens arrangement and a light-emitting diode array with two light-emitting diodes;

FIG. 8

a schematic view of another spring element for returning the actuators;

FIG. 9

a schematic view of a rotary member of a second embodiment of an actuating mechanism;

FIG. 10

a schematic view of a housing portion of the lighting arrangement in which the in FIG. 9 shown rotating element can be added;

FIG. 11

a schematic cross-sectional view of the housing portion in the region of an insertion slot;

FIG. 12

a schematic cross-sectional view of the housing portion;

FIG. 13

a schematic cross-sectional view of the housing portion with a received therein rotary member; and

FIG. 14

a schematic cross-sectional view in the region of a light emitting diode.

FIG. 1 shows a schematic view of a lighting arrangement 10, which can be used in particular as security lighting. In this case, the lighting arrangement 10 preferably comprises lateral fastening elements 11 (designed as latching lugs, for example) which can be used for fastening to a wall section or the like at the installation location. On one side of the illumination arrangement 10 , this comprises a light exit surface 12 (for example provided by a light-permeable cover) in order to be able to deliver light to a region to be illuminated. The lighting assembly 10 includes above In addition, connection means 13 (for example, connectors or connection cable) in order to connect them to an electrical supply can. Finally, the lighting arrangement 10 may include differently shaped housing sections 14 or housing parts in order to be able to provide different geometries of the lighting arrangement 10 as required.

FIG. 2 shows a schematic view of in FIG. 1 shown lighting assembly 10 in different installation situations. As in FIG. 2 As shown, it is preferred that the fastening elements 11 are designed as latching lugs 11 which can be latched into correspondingly formed undercuts or receptacles of an adjacent wall section or a built-in element (for example a mounting frame) at the installation location.

FIG. 3 shows a schematic plan view of a preferably used in a lighting assembly 10 according to the invention lens assembly 20. As in FIG. 3 shown, the lens assembly 20 is preferably circular in plan view. In this case, the lens arrangement 20 in each case comprises three different pairs of identical optical elements 21, 22, 23, the optical elements 21, 22, 23 of the respective pairs being arranged opposite one another on the lens arrangement 20. Preferably, the optical elements 21, 22, 23 are further arranged at substantially equal angular intervals (in this case with angular intervals of approximately 60 ° in each case) on the lens arrangement 20. With such a design of the lens arrangement 20, it is possible to have a correspondingly formed light-emitting diode arrangement (cf., for example FIG. 7 ) to be provided with two light-emitting diodes and at the same time to guide light through the optical elements 21, 22, 23 of a respective pair, thereby increasing the light output of a lighting arrangement 10 according to the invention.

In alternative embodiments of the lighting arrangement, only one light-emitting diode (or only one light-emitting diode array) can be provided in the lighting arrangement, which emits light through only one optical element. Finally, it can also be provided that more than two identical optical elements are provided, so that with a corresponding design of the light-emitting diode arrangement at the same time a light output from more than two same optical elements is possible in order to increase the light output of the lighting device can further.

Preferably, the optical elements 21, 22, 23 are designed such that they are suitable for providing lighting functions for escape routes, anti-panic lighting or for working areas with special danger. The different requirements for this are specified, for example, in the DIN standard EN 1838, in particular with regard to the uniformity of the light distribution, the illumination, and the light intensity. For example, as optical elements 21, 22, 23 of the lens arrangement 20, spherical lenses, aspherical lenses, optical gratings or stepped lenses can be used. Furthermore, the optical elements 21, 22, 23 are preferably designed such that they form a cavity into which a light-emitting diode of the light-emitting diode arrangement can be arranged in the latching position of the movable arrangement (cf. FIG. 14 ).

FIG. 4 shows a schematic cross-sectional view of the lighting assembly 10 with a first embodiment of an actuating mechanism. The illumination arrangement 10 comprises, in particular, a light exit side 12, a lens arrangement 20, a movable light-emitting diode arrangement 30 and an upper housing part 14. The light-emitting diode arrangement 30 can be moved in such a way that they are moved away from the lens arrangement 20 on the one hand can and on the other hand with respect to the lens assembly 20, about a rotation axis can be rotated.

In the in FIG. 4 As shown, the light-emitting diode array 30 is in a detent position, ie the light-emitting diode array 30 is rotationally fixed with the lens assembly 20 in engagement and at least one light emitting diode 31 of the light emitting diode array is disposed below an optical element 21, preferably in one formed cavity (a so-called lens pot). Such a rotationally fixed engagement can be provided, for example, by means of at least one pin element 22, which is provided, for example, on the lens arrangement 20 and a correspondingly formed receptacle / groove 32 which is provided on the light-emitting diode arrangement 30. In this case, the pin member 22 and the receptacle 32 are formed such that they are in the locking position of the movable assembly (Here, the light-emitting diode array 30) allows exact positioning of the light emitting diode 31 (or the LEDs) below the optical element 21. In this case, the light-emitting diode arrangement 30 comprises a corresponding receptacle 32 at each position of the optical elements 21, 22, 23.

The in FIG. 4 The actuating mechanism shown comprises two oppositely disposed on the lighting assembly 10 actuators, preferably in the form of snaps 40 (wherein in FIG. 4 only one push button 40 is shown). As in the FIGS. 4 and 5 As shown, the push buttons 40 each include at least one ramp portion 41 which is formed and arranged such that this ramp portion is engageable with the light emitting diode array when the push button 40 is actuated / depressed.

To the light emitting diode array 30 of their in FIG. 4 To move the latching position shown to a rotational position, an operator must operate the push buttons 40 so that the ramp sections 41 are guided to the light emitting diode array 30 and moved along the ramp sections 41 (moved upwardly in the view shown). The ramp sections 41 are preferably guided in respective guide grooves 33 of the light-emitting diode array 30, in particular to prevent tilting or the like and to facilitate rotation of the light-emitting diode array 30. By moving the light-emitting diode array 30 along the ramp portions 41, the light-emitting diode array 30 is moved away from the lens assembly 20, in particular until the pin member 22 has been led out of the receptacle 32, so that the light-emitting diode array 30 no longer rotatably with the Lens assembly 30 is engaged and in its rotational position, in which the light-emitting diode array 30 with respect to the lens assembly 30 can be rotated.

After the light-emitting diode array 30 has been rotated by means of the push buttons 40 (ie after the light-emitting diode (s) 31 has been arranged below a desired optical element 21, 22, 23 by rotating the light-emitting diode array 30), the push buttons 40 can be pulled out again, so that the light-emitting diode array 30 is lowered and the pin element 22 (or one of the pin elements 22) into a corresponding receptacle 32nd is arranged, which is provided at the respective positions of the optical elements 22, 23, 23. Thus, the movable light-emitting diode array 30 is again arranged in its latching position.

In order to keep the light-emitting diode arrangement reliably and captively in its latching position, a spring element 15 is preferably arranged between the light-emitting diode arrangement 30 and an adjacent housing section of the lighting arrangement 10 in order to press the light-emitting diode arrangement 30 onto the lens arrangement 20.

FIG. 6 shows a schematic view of the two oppositely arranged push buttons 40, which are connected to simplify the withdrawal of the push buttons 40 after twisting of the light-emitting diode array 30 in the rotational position by means of a common spring element 42 with each other. The spring element 42 is designed and arranged such that it pushes apart the push buttons 40 in order to move them back into their withdrawn position.

FIG. 7 shows a schematic representation of the light-emitting diode array 30, which is arranged above the lens arrangement 20. As in FIG. 7 clearly visible, the arrangements 20, 30 have a common center 16, which represents the axis of rotation 16 of the light-emitting diode arrangement 30 about which it can be rotated. In this illustrated embodiment of the light-emitting diode array 30 remain the push buttons 40 (ie the actuators) to the respective guide grooves 33, ie even after rotation of the light-emitting diode array 30 remain the push buttons 40 on the two guide grooves 33 shown. In this embodiment, the Push buttons 40 preferably in a circumferential slot, which may be provided in an adjacent housing portion of the lighting assembly 10, guided during the twisting.

In an alternative embodiment, the light-emitting diode arrangement 30 is likewise of circular design so that it has substantially the same shape as seen in plan view, like the lens arrangement 20. In this embodiment, a plurality of guide grooves 33 may be provided peripherally on the light-emitting diode arrangement 30, the distances of which correspond to the distances of the optical elements 21, 22, 23. Thus, there is the Possibility of providing a kind of driving solution, ie the actuating elements (here in the form of the push buttons 40) can be reciprocated between a first position (on a first optical element) and a second position (on a second optical element). At the first and at the second position, the actuation elements can be brought into engagement with the correspondingly arranged circumferential guide grooves 33 and the light-emitting diode arrangement 30 can in each case by a defined angular distance corresponding to the arrangement of the optical elements 21, 22, 23 (here an angular distance of about 60 °) are moved. Also in this embodiment, the push buttons 40 are preferably each guided in a circumferential slot, which may be provided in an adjacent housing portion of the lighting assembly 10, during the twisting. However, these slots only have to extend from the first position to the second position. Such an embodiment is particularly preferred because it can be ensured in a simple manner that the light-emitting diodes 31 of the light-emitting diode array 30 are always correctly positioned after rotation to the optical elements 21, 22, 23, so that when moving the Light-emitting diode array 30 in the latching position, the LEDs 31 in the cavities of the optical elements 21, 22, 23 can be moved.

FIG. 8 shows a spring element which is used in particular for the driving solution described. As in FIG. 8 As shown, it is preferable not only to dispose a spring member 42 between the two press studs 40 to push apart the push buttons 40, but to provide an additional spring member 43 to facilitate return of the push buttons 40 from the second position to the first position. The spring element 43 may on the one hand with at least one of the push buttons 40 are engaged and on the other hand attached to an adjacent wall portion of the lighting assembly 10, so that upon rotation of the push buttons 40 from the first to the second position, a corresponding torsional force builds up a return movement of the push buttons 40 from the second to the first position leads.

FIG. 9 shows a schematic representation of a rotary member 50 of a second embodiment of an actuating mechanism. The rotary member 50 includes a turntable 51 and a rod member 52 as an engagement element for an operator. Laterally on the turntable 51, the rotary member 50 further comprises pin members 53 which can be arranged in correspondingly formed insertion slots of a housing portion of the lighting assembly 10 (see. FIG. 10 ). In this embodiment, the light-emitting diode array 30 is arranged on the underside of the turntable 51 (for example glued or screwed).

FIG. 10 is a schematic view of a housing portion 16 of the lighting assembly 10, in which the in FIG. 9 shown rotary member 50 (more precisely, at least the turntable 51 with the light-emitting diode array 30) can be recorded. In the housing portion 16 while the lens assembly 20 is fixed. As in FIG. 10 shown, the lens assembly 20 and the housing portion 16 in this embodiment comprises vertically formed insertion slots 17, which are arranged corresponding to the pin members 53 of the turntable 51 circumferentially.

FIG. 11 shows a schematic cross-sectional view of the housing portion 16 in the region of the insertion slots 17. As in FIG. 11 shown, a circumferential guide slot 18 is provided below the insertion slots 17, in which the pin members 53 of the turntable 51 can be rotatably guided, ie after insertion of the pin members 53, these are initially arranged in the circumferential guide slot 18.

FIG. 12 shows a schematic cross-sectional view of the housing portion 16. As in FIG. 12 shown, the housing portion 16 below the circumferential guide slot 18 vertical slots 19. These vertical slots 19 are distributed in the housing portion 16 corresponding to the optical elements 22, 23, 24 of the lens assembly 20 and corresponding to the pin members 53 circumferentially, ie one Each position of an optical element 22, 23, 24 is associated with at least one correspondingly formed vertical slot 19. If the pin elements 53 are arranged in the correspondingly formed vertical slots 19, it can thus be ensured that the light-emitting diode (s) 31 of the light-emitting diode arrangement 30 is or are positioned precisely on the optical elements 22, 23, 24 of the lens arrangement 20 , As in FIG. 12 also shown, 19 locking means may be provided in the vertical slots, which hold the pin members 53 in this position. Further For example, a spring element (not shown) can be provided on the rotary element 50 (for example on the rod element 52) in order to press the pin elements 53 into the vertical slots 19.

FIG. 13 shows a schematic cross-sectional view of the housing portion 16 having disposed therein rotary member 50 in the locking position of the light emitting diode array 30. To the light emitting diode array 30 of the detent position shown, in which the pin members 53 are located in the vertical slots 19 and the light emitting diode array 30th thus hold rotationally fixed to move into the rotational position, an operator must grab the rotary member 50, for example, on the rod member 52, and the pin members 53 pull out of the vertical slots 19 until the pin members 53 are arranged in the circumferential guide slot 18 and thus in the rotational position. In this rotational position, the rotary member 50 (and thus the arranged light-emitting diode array 30) are rotated until a desired positioning of the light emitting diode (s) 31 is reached and the pin members 53 can be inserted into the vertical slots 19 again.

The invention is not limited to the embodiments as long as it is encompassed by the subject matter of the following claims. Furthermore, the individual features of the embodiments in any way mit- and can be combined with each other. In particular, the present invention is not limited to emergency lighting, but rather generally relates to applications where a lighting arrangement is to provide various radiation characteristics. It should also be pointed out that an optical element, that is, for example, a corresponding lens, not only one but also a plurality of LEDs can be assigned; eg RGB light-emitting diodes.

Claims (15)

Lighting arrangement (10), in particular a security lighting, comprising: - At least one lens arrangement (20) on which at least two different optical elements (21, 22, 23) are arranged; - At least one arranged under the lens arrangement (20) light emitting diode array (30) with at least one light emitting diode (31); - wherein at least one of the assemblies (20, 30) by means of an actuating mechanism (40; 50) between a locking position and a rotational position is movable; - Wherein the at least one movable assembly (30) in the latching position rotatably with the other assembly (20) is engaged and in the rotational position is arranged rotatably about an axis of rotation (16); - Wherein by rotating the at least one arrangement (30) at least one light-emitting diode (31) of the light-emitting diode array (30) under one of the optical elements (21, 22, 23) of the lens arrangement (20) can be arranged such that light by the over the light-emitting diode (31) arranged optical element (21, 22, 23) is feasible. The lighting assembly (10) of claim 1, wherein the movable assembly (30) movable between a detent position and a rotational position is the light emitting diode array (30). A lighting assembly (10) according to any one of claims 1 or 2, wherein by means of the actuating mechanism (40; 50) the movable assembly (30) is rotatable about the axis of rotation (16). Lighting arrangement (10) according to one of the preceding claims,
wherein the lens arrangement (20) in plan view is circular or polygonal, in particular rectangular, is formed. Lighting arrangement (10) according to one of the preceding claims,
wherein the lens assembly (20) comprises at least three different optical elements (21, 22, 23) which are identical with respect to the axis of rotation (16) about which the movable assembly (30) is rotatable in the rotational position Radii are arranged, wherein the optical elements (21, 22, 23) are preferably arranged at equal angular intervals. Lighting arrangement (10) according to one of the preceding claims,
the lens arrangement (20) comprising at least three different pairs of identical optical elements (21, 22, 23) and the optical elements (21, 22, 23) of the respective pairs being arranged opposite one another on the lens arrangement (20), and wherein the optical elements (21, 22, 23) are preferably arranged at an angular distance of 60 ° on the lens arrangement (20). Lighting arrangement (10) according to one of the preceding claims,
wherein the optical elements (21, 22, 23) of the lens arrangement (20) is a spherical lens, an aspherical lens, an optical grating or a stepped lens, and wherein the optical elements (21, 22, 23) preferably comprise a cavity in which a light-emitting diode (31) of the light-emitting diode arrangement (30) can be arranged in the latching position of the movable arrangement. Lighting arrangement (10) according to one of the preceding claims,
wherein the light-emitting diode arrangement (30) in plan view is circular or polygonal, in particular rectangular, is formed. Lighting arrangement (10) according to one of the preceding claims,
wherein the light-emitting diode arrangement (30) comprises at least two oppositely arranged light-emitting diodes (31). Lighting arrangement (10) according to one of the preceding claims,
the spring-groove means (22, 32, 19, 53) corresponding to the arrangements (20, 30) for providing a rotationally fixed engagement of the assemblies (20, 30) in the locking position of the movable assembly (30). Lighting arrangement (10) according to one of the preceding claims,
wherein the actuation mechanism (40) comprises at least two oppositely disposed movable actuators (40) each including at least one ramp portion (41) along which the moveable assembly (30) is guidable to actuate the moveable assembly (30) of the operating member (40) to move from the locking position to the rotational position, and wherein the movable assembly (30) in the rotational position by means of the actuating elements (40) is rotatable. Lighting arrangement (10) according to claim 11,
wherein the lighting arrangement (10) comprises guide slots in which the actuating elements (40) are guided during rotation of the movable arrangement (30), and / or
wherein the movable arrangement (30) comprises guide means (33), in particular grooves (33) or notches, in which the respective ramp section (41) of the actuating elements (40) is guided during actuation, and / or
wherein the actuating elements (40) are spring-loaded by means of at least one spring (42) in order to move them after actuation into their starting position and to move the movable arrangement (30) into the latching position,
wherein the movable assembly (30) is also preferably spring loaded by at least one spring (15) to maintain the movable assembly (30) in the detent position, and / or
wherein the movable assembly (30) comprises a plurality of guide means (33) engageable by the actuators (40), the guide means (33) being disposed corresponding to the optical members (21, 22, 23), and wherein the Guide slots of the illumination assembly are formed such that a defined rotation of the movable assembly (30) is provided from a first position to a second position, preferably at the first position, a first optical element (21, 22, 23) and at the second position an adjacent second optical element (21, 22, 23) is arranged, wherein the actuating elements (40) preferably with a return elements (43), in particular a return spring (43) are connected to the actuating elements (40) from the second position in move the first position after the movable assembly (30) is rotated from the first position to the second position and moved to the detent position has been. Lighting assembly (10) according to one of claims 1 to 10, wherein the actuating mechanism (50) comprises a rotary member (50) with a turntable (51) on which the movable assembly (30) is arranged and wherein the turntable (51) lateral Comprising pin members (53) formed in correspondingly formed vertical slots (19) of the lighting assembly (10) can engage, so that the rotary member (50) with the movable assembly (30) rotatably disposed in the detent position. Lighting arrangement (10) according to claim 13, wherein on the rotary member (50) an engagement element (52), in particular a rod element (52) is arranged, with which the pin members (53) of the turntable (51) from the vertical slots (19) of the Lighting arrangement (10) can be pulled out and the rotary member (50) can be moved with the movable assembly (30) from the detent position to the rotational position, said illumination assembly (10) comprises a circumferential guide slot (18) in which the pin members (53) be guided during rotation in the rotational position. Lighting arrangement (10) according to claim 14, wherein the rotary element (50) is spring-loaded, in particular by means of a spring element arranged on the rod element (52), in order to move the pin elements (53) of the rotary element (50) into the vertical slots (19) of the illumination arrangement. 10) to press or hold in this.

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