WO2014180460A1

WO2014180460A1 - Lighting arrangement

Info

Publication number: WO2014180460A1
Application number: PCT/DE2014/000219
Authority: WO
Inventors: Kristina HAHN; Nina Schymczyk
Original assignee: Paulmann Licht Gmbh
Priority date: 2013-05-06
Filing date: 2014-04-29
Publication date: 2014-11-13
Also published as: DE102013007641A1

Abstract

The present invention relates to a lighting arrangement (1) comprising a body (10) comprising a plurality of light sources (13), wherein the light exit direction of said light sources points towards at least one specific side (12) of the body (10), wherein at least some of the light sources (13) are coated with a light-transmissive material (15). The lighting arrangement (1) is characterized by the fact that a plurality of optically active bodies (16, 17, 18, 20) are introduced into the light-transmissive material (15), said optically active bodies being designed for the at least partial reflection and/or scattering and/or refraction and/or absorption of the light emitted by the light sources (13). The body (10) is flexible. The body (10) has a self-adhesive coating on a side (14) which is remote from the specific side (12) of the body (10), preferably on the side (14) opposite the specific side (12) of the body (10).

Description

DESCRIPTION

TITLE

lighting arrangement

STATE OF THE ART

The invention relates to a lighting arrangement according to the preamble of claim 1 and to a method for producing such lighting arrangements according to claims 13, 14 and 15.

In lighting technology, different lighting means are used for different purposes and in different applications, both individually and in combination with lighting arrangements. For a long time become as means of illumination

(Light sources) also LEDs (light-emitting diode, light-emitting diode) used. LEDs are characterized by some advantages over conventional incandescent and fluorescent lamps, cf. e.g. DE 10 2009 047 556 Al. For example, LED luminaires today can reach a lifespan of over 100,000 hours. This significantly reduces the time and cost of replacing a light source. Also, the consumed

Power can be lowered by using LEDs compared to light bulbs. In addition to the room or street lighting LEDs are therefore increasingly in flashlights and effect lighting, z. For example, in illuminated furniture and designer pieces such as showcases or frames, where narrow and sometimes hidden LED strips provide for indirect lighting and a pleasant room atmosphere. Also, such LED strips are mounted in rooms directly on the walls, ceilings or corners to illuminate the surrounding surfaces and thus produce a pleasant indirect lighting.

replacement blade The LED lighting arrangements generally have a body as a background, on which individual LEDs are arranged as light sources. If an LED strip is used as the LED lighting arrangement, the LEDs are usually provided in the longitudinal direction in a row uniformly spaced. The LEDs are with

electronic circuits and or or components for their operation and electrical connections such as plugs and plug connections for electrical power supply to interconnects. The substrate can be as a board both inflexible, i. rigid and not or hardly destructively flexible, or flexible, i. non-destructive, be formed. The LEDs, electronic circuits and circuit traces are generally covered by a protective layer, such as e.g. a transparent lacquer layer coated to protect them from the environment and also to avoid the conductivity to the environment, but without limiting the possibly existing flexibility of the LED lighting arrangement. Alternatively or additionally, the LED lighting arrangement can be arranged within a housing which has a light-permeable protective cover or the like on at least one side.

For example, DE 10 2009 047 556 A1 describes an LED lighting arrangement in the form of inflexible LED boards, which can be connected to one another via plugs. This LED lighting assembly has a rigid light pipe that runs parallel to the LED board between the two end cap plugs and surrounds the LEDs from the environment. The light tube may be made of glass, plastic or any other type of suitable clear and translucent material. DE 20 2012 002 594 U l describes room lighting profile arrangements in which inflexible LED boards or flexible LED strips can be provided to illuminate walls, ceilings or the floor, thus producing indirect lighting. For mounting on a flat surface or in a corner or on an edge profiles or other mounting aids are used in which the LEDs are arranged to illuminate the surrounding surfaces directly and so to act on the viewer indirectly. The profiles may have translucent covers that cover the LED board or LED strips from the environment.

spare aphid US 8,262,250 Bl describes a modular LED lighting system with flexible or rigid light strips. To facilitate installation and repair, the light strips are provided with connections for connection with each other, etc., as an integral

Component of the body, i. of the substrate strip, these are formed

Light strips can be arranged in a rigid housing which has the connections on the two end faces and is covered by a transparent cover for protecting the substrate and the LEDs. The lid is made of transparent plastic, is colorless and can act as a lens to direct the light emitted by the LEDs.

A disadvantage of the use of lighting arrangements that dazzle the light sources when viewed directly and can be distracting. This is especially true for LEDs that represent punctiform and comparatively bright light sources. So u.a. For this reason, usually LED lighting arrangements used only for indirect lighting.

DISCLOSURE OF THE INVENTION The object of the present invention is to provide a lighting arrangement in which glare from the light sources when viewed directly is avoided or at least reduced and which is simple and inexpensive to produce and to use.

The object is achieved by a lighting arrangement with the features of the characterizing part of claim 1, a method with the features of

Claim 13, a method having the features of claim 14 and a method having the features of claim 15 solved. Advantageous developments are in the

Subclaims described. Thus, the present invention relates to a lighting arrangement comprising a body having a plurality of light sources, the light exit direction to at least a certain side of the body, wherein at least a part of the light sources of a

spare aphid translucent material is coated. The illumination arrangement is characterized in that in the translucent material a plurality of optically active bodies are introduced which are designed for at least partial reflection and / or scattering and / or refraction and / or absorption of the light emitted by the light sources.

Under a lighting arrangement, an arrangement of light sources, such as e.g. To understand LEDs on a body. The body may be any substrate which is suitable for receiving the light sources and the translucent material provided with optically active bodies, and may also be referred to as a base body or base body. Its dimensions can be rectangular, square, round, oval, etc. Also polygonal and curved dimensions are possible. In this case, the body is preferably formed in its thickness rather flat relative to its dimensions in the plane perpendicular thereto. However, bodies with e.g. a round, semicircular, trapezoidal, triangular or square cross-section extending in this form in the longitudinal direction. The body is preferably not electrically conductive.

As a body, a board is preferably used, in addition to the o.g. Functions also recording, e.g. electrical circuits, components, lines and connections can serve. The body may be both inflexible, i. rigid and not or hardly

nondestructive, flexible or flexible, i. non-destructive, be formed. As materials for an inflexible board paper, glass fiber or glass fiber fabric can be used as reinforcement with phenolic resin, epoxy resin, epoxy, di-, tetra-, multi- or BT-epoxy as well as polyimide as matrix. Also, inflexible boards made of Teflon or ceramic can be produced. Preferably, as an inflexible board FR4 is used as the material, i. Glass fiber fabric with di- or tetra-epoxy. As a base material for flexible boards, films of polyimide, PET (polyethylene terephthalate) and PEN

(Polyethylene naphthalate) can be used. The body may also be rendered luminescent, i. phosphorescent.

replacement blade The light sources can be any light sources whose direct viewing can be improved according to the invention. The light sources are preferably LEDs, which are particularly bright and punctiform light sources and their direct viewing is therefore generally perceived as unpleasant. The light sources can emit all light of the same color or different colors. Preferably, all the light sources emit white light. The light sources are arranged at least on a certain side of the body to emit the light substantially away from this side. However, the light sources can also be arranged on several sides of the body, for example on two sides of a triangular cross-sectional profile of the body. The can

Light sources completely or partially on the top, i. Surface of the specific side of the body, be arranged, or in the body, as long as they still have a light emission to the specific side. Light sources are also considered to be light leaks from the body, e.g. be fed via optical fibers from a light source inside the body or outside the body. The light exit direction may be substantially perpendicular to the surface of the particular side of the body or at a different angle, in particular at a shallow angle, so that the

Light emission substantially parallel to the particular side of the body shows.

To protect the light sources are at least these, but preferably also the

Tracks, electronic circuits or components, etc., of a

coated translucent material to cover these against the environment while also protecting the environment from the electrical currents in the o.g. electrical elements can flow. The light sources and the

translucent material or the specific side of the body and the translucent material also be spaced apart in the vertical direction, e.g. through another material. As a translucent material silicone (poly (organo) siloxane), polyurethane or epoxy resin can be used. Silicone is a comparatively cheap material, but it turns yellow comparatively fast and becomes brittle. Polyurethane is more expensive, but has a medium durability and better curing. Epoxy resin is comparatively expensive, but offers the comparatively highest durability and best transparency. Also, a translucent acrylic-based material is possible. The

translucent material can be applied as a layer by spraying, potting, welding,

spare aphid All-potting or similar procedures are applied to the body. The translucent material may also be formed luminescent, ie

phosphorescent. The present invention is based on the finding that the beam path of the

Light rays that are emitted by a light source can be influenced so n n that the light rays do not dazzle a viewer or less. Therefore, between the light sources of a lighting arrangement and the eye, a viewer is provided with optically effective bodies in the light-transmissive material which are the direct ones

Beam path between the light source and the eye of the observer can influence so that this effect is achieved, i. the observer is no longer blinded by the light sources. This can be done by deflecting the beam path of the light emitted by the light source through the surface of an optically active body in one direction (reflection) or multiple directions (scattering) without the light entering or passing through the respective optically active body this passes. Also, the light emitted by the light source when passing through an optically active body can be changed in its beam path so that it no longer reaches the viewer's eye directly after exiting the optically active body (breaking and double or multiple refraction) , Finally, the light emitted by the light source can also be absorbed by an optically active body so that its beam path in or on the optically active body end et (absorption). In all cases, glare from the light sources is avoided or at least reduced even when viewed directly. In this case, it is possible to use as the optically active body any body which is capable of one or more effects of optical reflection, scattering, refraction and / or absorption. These optically active bodies can be fixed on the predetermined side of the body on which the light sources are arranged and project into the transparent material or via the light sources without contact with the body in the transparent material and in and / or on the surface of the light-transmissive Be included in the material. The translucent material can partially absorb or completely enclose the optically active bodies. Preferably

| Replacement Blade For example, the translucent material has a height opposite the particular side of the body so that the light sources and optically active bodies are covered by a uniformly thick layer with respect to the particular side of the body. The optically effective bodies can be different shapes, sizes, colors,

Surface textures, etc., wherein also different embodiments of optically active bodies can be used together in a lighting arrangement. The optically active body can be two and / or or

be three-dimensional body as well as particles that can cause a coloring and / or opacity of the translucent material. Preferably, the optically active bodies have a size such that they can be recognized by a viewer with the naked eye. Particularly preferably, the optically active bodies have a size, so that their design, in particular form and / or color, can be recognized by a viewer with the naked eye or can. All or some of the optically active bodies may also be luminescent, i.

phosphorescent. To provide such optically effective body in the translucent layer and in and / or on the surface of the translucent material allows the integral formation of the lighting arrangement according to the invention, so that it can be easily and inexpensively manufactured and used. The optically active bodies can be arranged in the beam path between the light source and the viewer so that they can bring about the effects described above. Are multiple beam paths between a light source and viewer possible because the

Light source can be perceived by the viewer from different angles, so can be provided sufficiently many optically effective body in the various potentially possible beam paths in order to achieve effective reduction or avoidance of glare of the observer. This also applies to multiple light sources that can be perceived simultaneously or successively by the viewer. Preferably, the optically active bodies are arranged so that they are in

Essentially a reflection and / or scattering and / or refraction and / or

replacement blade Absorb the light emitted by the light sources emitted light which is emitted substantially perpendicular to the particular side of the body.

It is advantageous here that illumination arrangements are generally used in such a way that they emit their light essentially perpendicular to their surface or the light sources are perceived perpendicular to the surface of the illumination arrangement by the viewer. Therefore, a reduction or avoidance of the observer's glare can be achieved particularly effectively by arranging the optically active bodies essentially in such a way in the light-transmissive material as in and / or on the surface of the light-transmissive material

in particular, influence the beam paths of the light emitted in this direction.

Preferably, the optically active bodies are arranged in the translucent material to the particular side of the body spaced.

These optically effective bodies are thus arranged without contact to the surface of the particular side of the body in the light-transmitting material, i.e. "floating." The optically active bodies may additionally or alternatively also be in and / or on the

Be arranged surface of the transparent material.

In order to be contained (completely) within the light-transmissive material, optically active bodies can be used that are simple and easy to manufacture

Use can be applied together with the translucent material together. The optically active bodies in this case must have approximately the specific weight of the light-transmitting material. Furthermore, the geometry and material of the optically active bodies must be matched to the translucent material and processing method, e.g. to the nozzle diameter on spraying or its solubility in e.g. Resins. In this case, comparatively small particles are used, so that the translucent material in this nature and consistency due to the size of the particles contained in it can also be referred to as emulsion or dispersion. Alternatively or additionally, larger optically active bodies may also preferably be contained in the light-transmitting layer, which then

replacement blade can subsequently be introduced in a further manufacturing step in the applied translucent layer and the outer surface, for example by pressing, rolling, rolling, etc. The translucent material may in this nature and consistency due to the size of the particles contained in it as a suspension or mixture be designated.

The optically active bodies may be particles which serve for the color change and / or clouding (attenuation) of the light-transmissive material in order, overall, preferably uniformly, to reduce the light penetration of the light-transmitting layer by absorption and thereby reduce the glare of the observer. In this way, a diffuse light propagation is achieved. The translucent material is preferably colored white, so that the light loses only its glare effect or is reduced in this, but its brightness is reduced as little as possible. Also, the color of the light emerging from the translucent layer may be higher than that of FIG

Light source emitted light can be selectively changed, with both monochrome as well as different colored changes are possible. In addition to the "common" color palette, colorations in, for example, opal, gold, amber, multicolor, terracotta, satin or rose are also possible Alternatively or additionally, optically active bodies can be contained in the transparent layer and its outer surface, which can be refracted or refracted respectively.

Scattering can achieve a reduction or avoidance of the observer's glare. These optically active bodies are preferably made larger than the previously besch rub particles. Optically effective bodies can be used here, which can be recognized as individual objects by the observer, so that the optical effects caused by them, e.g. Reflection by the viewer can be consciously perceived to give the lighting arrangement an additional decorative effect. In this case, the light-transmitting material is preferably to be designed such that the illumination function of the light sources is not reduced or as little as possible. Preferably, the translucent material is considered to be completely translucent, i. clear and colorless, formed and the optically active body incorporated herein and / or in and / or on the surface of the translucent

replacement blade Materials provided. The optically active bodies can be contained in the light-transmissive material during manufacture and applied to the body with it or subsequently into the already applied but not yet (completely) cured translucent material, for example by sprinkling, rolling up or rolling in, pressing in etc. are inserted. For example, by an embossing of refractive crystalline structures as optically active body in the surface of the completely transparent translucent material, an additional refraction of

Beam paths take place, e.g. the already performed refractions complemented by the other optically active body. Also, for this purpose, particles may be incorporated as optically active bodies in the surface of the light-transmissive layer, e.g. by rolling the applied but not yet fully cured

translucent material in granules.

It is advantageous here that the optically active bodies are in this way in the direct beam path between the light source and the viewer and the light source for the observer can completely or at least partially obscure. Also, the entire surface of the optically effective body is exploited to reduce the glare, whereby the beam path-changing effect of the optically active body is optimally utilized. Furthermore, beam paths can be changed again after their first change of further optically active bodies, which can further reduce the glare of the observer.

Preferably, the optically active bodies are arranged fixed to the particular side of the body.

As attached optically active bodies become rather such sizes,

Used materials and geometries, which are less suitable in manufacturing to be applied directly to the translucent material, but this require a separate manufacturing step. Thus, such optically active bodies can be applied to the body before the application of the light-transmitting material. This can be done as a cohesive as well as positive and / or non-positive by mechanical connections, for example by sticking, printing, embossing,

replacement blade Labeling, application, electrolytic coating or processing in multi-layer processes. Then the optically effective body with the

translucent material are coated or it is first applied to the translucent material and then introduced the optically active body in this up to a contact on the predetermined side of the body. Preferably, the individual optically active bodies have a maximum width which corresponds to the maximum width of the predetermined side of the body. By this type of attachment comparatively large optically effective body can be used. All or some of the optically active bodies may also be luminescent, i.

phosphorescent.

It is advantageous here that the optically active bodies have a secure hold on the predetermined side of the body. They also assume predefined positions during production, so that their effect on the beam path of the light sources can be determined not only by their design but also their positioning on the predetermined side of the body.

Preferably, the optically active bodies are formed two-dimensionally and / or three-dimensionally.

In this case, a two-dimensional optically active body is understood to mean one whose expansions extend essentially in two spatial directions, i. e.g. flat platelets of different geometry, in particular basic geometrical shapes, such as triangular, rectangular, square, round, oval, polygonal, star-shaped, etc. A three-dimensional body has significant dimensions in all three spatial directions, wherein these can be dimensioned differently. Again, different geometries such as cuboid, sphere, cone, pyramid, etc. are possible. Likewise, both the two-dimensional and the three-dimensional optically effective bodies can be creative freeforms in abstract, natural or artifact-like design as well as decorative motifs such as e.g. Hearts, stars, dots, flowers, animals, dinosaurs, cars, pirate heads, garlands, single crystals, etc., which in addition to the physical effect according to the invention can also have a design effect for the viewer. All or some of the optical

replacement blade effective body can also be formed luminescent, ie phosphorescent. In both cases, by such optically active body influencing the

Beam paths of the light emitted from the light sources can be effectively achieved. Preferably, the lighting arrangement is a lighting strip.

By a strip is meant that the lighting assembly has a small height (thickness, thickness), i. is flat, and in the plane has an extension (length, longitudinal direction) which is significantly greater than the other spatial direction (width, transverse direction). Such a geometry can also be described as narrow. Such lighting strips are particularly suitable for use in illuminating elongated objects such as e.g. Edges and corners of rooms, pieces of furniture and the like. In particular, such lighting arrangements are implemented by means of LEDs and referred to as LED strips. The lighting strips can on

predetermined locations, e.g. by cutting to adjust their length to the desired application.

Preferably, the body is flexible. Flexibility in this context means that the body is flexible without breaking or being damaged. The body can be used both because of its dimensioning, i. Thickness and height and width, as well as its material to be designed so flexible that a flexible use of the lighting arrangement, e.g. on curved surfaces or around corners and edges of e.g. Rooms and furniture etc. is possible. In other words, such a lighting arrangement is

In particular, a lighting strip, designed such that it can be applied consistently around curves and across corners. Also, the

Lighting arrangement preferably be applied simultaneously curved in its course in the transverse direction, i. in serpentine lines, curves etc. For this purpose, preferably thin and narrow bodies are used.

replacement blade Preferably, the lighting arrangement is a lighting module, which is designed to be connected by means of plug-in connections with further lighting modules.

Such modules are designed to operate together

Lighting arrangement with e.g. a single electrical energy source to be joined together. For this purpose, plug connections are to be provided on the individual modules, which not only make the modules mechanically connectable to one another but also make them electrically conductively connectable, so that e.g. several lighting modules can be connected in series and operated in series. This increases the flexibility of the use of the lighting arrangement, since finished modules can be easily and safely combined for concrete applications by plugging together.

Preferably, part of the light sources, preferably all light sources, are LEDs. It is advantageous that LEDs have a long life and a comparatively low consumption of electrical energy. They can also be easily and inexpensively manufactured and applied to bodies such as e.g. Boards are applied. When

Lighting arrangements may preferably be used as LED strips, which are usually sold as rolls and connected to e.g. Walls, ceilings, floors of rooms can be applied as lighting elements. Also, they can be used on or in pieces of furniture, etc. for this purpose. The individual LEDs are via printed conductors and possibly. Electronic components such. Resistors connected together.

The body preferably has a self-adhesive coating on a side facing away from the specific side of the body, preferably on the side opposite the specific side of the body.

This facilitates the attachment of the lighting arrangement. Preferably, the plurality of light sources comprise at least one light source emitting light of a first color and at least one light source emitting light of a second color.

replacement blade In this way, at least two light colors can be generated with a single illumination arrangement. The two light sources can be operated simultaneously or alternatively. In the latter case, a corresponding interconnection and

Conductor guide required, which allows the electrical supply of two separate and alternately operable LEDs on the same body.

Preferably, the surface of the light-transmissive material is formed for at least partial reflection and / or scattering and / or refraction and / or absorption of the light emitted by the light sources.

Advantageously, the optical effects of the optically active bodies can be enhanced by a corresponding design of the surface of the light-transmitting material with respect to the same optical effects and / or complemented by other optical effects. For example, an additional design element can be introduced into the illumination arrangement by means of dichroic-metallic vapor deposition of the upper side of the light-transmitting material. Also, by machining the surface of the translucent material, there may be formed facets or prisms which scatter, reflect and / or break the light from within the translucent material.

According to a further aspect of the present invention, this also relates to a method for producing a lighting arrangement as described above with at least the steps:

· Producing a body with a plurality of light sources whose

Light emission direction to at least one specific side of the body shows

Mixing a plurality of optically active bodies into a translucent material, and

Applying the translucent material on the specific side of the body, so that at least a part of the light sources is coated by the translucent material and the optically active body is the light emitted by these light sources

replacement blade reflect and / or scatter and / or break and / or absorb.

This type of production of an embodiment of a lighting arrangement according to the invention is advantageous because the degree of glare avoidance within the

translucent material is made by the admixture of the optically active bodies in the translucent material, i. by the amount of the optically active bodies admixed. Furthermore, the choice of the type of optically active bodies can have an influence on the properties of the finished product. Also, various embodiments of optically active bodies may be mixed together with the light-transmissive material. In this way, the previous production of such lighting arrangements can be maintained and supplemented only by the admixture of optically active body.

Producing a body with a plurality of light sources whose

Light emission direction to at least one specific side of the body shows

Applying a plurality of optically active bodies on the specific side of the body so that the optically active bodies can reflect and / or scatter and / or break and / or absorb the light emitted by these light sources, and

Applying a translucent material on the particular side of the body such that at least a portion of the light sources are covered by the translucent material.

It is advantageous here that the previous production of such lighting arrangement only the step of applying the optically active body must be interposed, the manufacturing process otherwise remains unchanged. This simplifies the implementation of this process and reduces the cost of manufacturing. The

replacement blade Application can be done, for example, by gluing, printing, embossing, labeling, laying, electrolytic coating or processing in multi-layer processes.

Producing a body with a plurality of light sources whose

Light emission direction to at least one specific side of the body shows

Applying a translucent material on the specific side of the body such that at least a portion of the light sources are coated with the translucent material,

Applying and / or introducing a plurality of optically active bodies onto and / or into the surface of the translucent material, such that the optically active bodies reflect and / or scatter the light emitted by these light sources and / or break and / or or absorb, and / or

Forming the surface of the translucent material for at least partial

Reflection and / or scattering and / or refraction and / or absorption of the light emitted by the light sources. It is also advantageous here that the previous production of such

Lighting arrangement remains largely unchanged. This simplifies the implementation of this process and reduces the cost of manufacturing. So can the

Lighting arrangement as usual be covered with a translucent material. Subsequently, either optically active bodies e.g. by sprinkling, indenting, curling etc. in or on the surface of the translucent material are introduced. Alternatively or additionally, the surface can also be processed, e.g. by grinding, cutting etc. in order to introduce desired structures here. Also, the surface of the translucent material may not yet be completely finished

hardened state are pressed against a counter-mold to get their structure as a negative to be mapped. By such types of processing as well as their combination, e.g. Facets or prisms are introduced into the surface of the translucent material. Also, a working surface of the

spare aphid transparent material is followed by application and / or introduction of optically effective bodies.

BRIEF DESCRIPTION OF THE DRAWINGS

Some embodiments and further advantages of the invention are described below

Together with the following figures explained. It shows:

1a is a perspective schematic representation of a lighting arrangement according to a first embodiment;

Fig. Lb is a cross-section through the illumination arrangement of Fig. La;

2a is a perspective schematic representation of a lighting arrangement according to a second embodiment;

2b shows a cross section through the illumination arrangement of Fig. 2a;

3a shows a perspective schematic representation of a lighting arrangement according to a third embodiment;

FIG. 3b shows a cross section through the illumination arrangement of FIG. 3a; FIG.

4a shows a perspective schematic representation of a lighting arrangement according to a fourth embodiment;

FIG. 4b shows a cross section through the illumination arrangement of FIG. 4a; FIG.

5a shows a perspective schematic representation of a lighting arrangement according to a fifth embodiment;

FIG. 5b shows a cross section through the illumination arrangement of FIG. 5a; FIG.

6a is a perspective schematic representation of a lighting arrangement according to a sixth embodiment;

FIG. 6b shows a cross section through the illumination arrangement of FIG. 6a; FIG.

7a is a perspective schematic representation of a lighting arrangement according to a seventh embodiment;

FIG. 7b shows a cross section through the illumination arrangement of FIG. 7a; FIG.

8a is a perspective schematic representation of a lighting arrangement according to an eighth embodiment; and

8b shows a cross section through the illumination arrangement of FIG. 8a.

replacement blade EMBODIMENTS OF THE INVENTION

1 a shows a perspective schematic representation of a lighting arrangement 1 according to a first exemplary embodiment. Fig. Lb shows a cross section through the

Lighting arrangement 1 of Fig. La. The illumination arrangement 1 has a body 10 which extends substantially in a longitudinal direction X (length) and in which

Transverse direction Y (width) and the height Z has comparatively small dimensions, so that the lighting arrangement 1 can also be referred to as lighting strip 1. The body 10 is formed as a circuit board 10 and has at its two ends in the longitudinal direction X in each case a plug 11 or plug connection 11 in order to further

Lighting arrangements 1 and electrical energy sources or other

to be connected to electronic elements. On the upper side 12 of the board 10, a plurality of LEDs 13 are arranged as light sources 13, so that the

Lighting strip 1 can also be referred to as LED strip 1. The LEDs 13 and the plug 11 or plug connection 11 are electrically conductively connected to one another via electrical lines (not shown). The LEDs 13 are covered with a translucent material 15, so that the LED strip 1 in the height Z has a total extent in which the thickness of the transparent material 15 exceeds the thickness of the board 10, in particular by at least twice. On its underside 14, the board 10 has a self-adhesive coating for mounting the LED strip.

According to the invention, the LED strip 1 according to a first embodiment has a plurality of optically active bodies 16, which lead to a turbidity or coloration of the light-transmitting material 15. For this purpose, the optically effective body 16 are formed as particles 16 so small that they form a kind of emulsion or dispersion together with the light-transmitting material 15. The size of the particles 16 in FIGS. 1 a, 1 b merely serves to illustrate the drawing and does not correspond to the actual size of the particles 16. The particles 16 are white, for example, like the light emitted by the LEDs 13, so that only that of the LEDs 13 emitted light through the particles 16 clouded by absorption and thereby reduces glare of the observer or even avoided, however, the brightness of the LEDs 13 is minimized as possible.

replacement blade FIG. 2 a shows a perspective schematic illustration of a lighting arrangement 1 according to a second exemplary embodiment. FIG. 2b shows a cross section through the illumination arrangement 1 of FIG. 2a. Here, the optically effective bodies 17 are larger than the particles 16 of the first embodiment and can be recognized by the viewer with the naked eye also in terms of their shape and or or color. Furthermore, the optically active bodies 17 are designed such that reflections, scatters and / or refractions can occur on them. For example, the optically active bodies 17 may be formed as diamond-shaped platelets 17, ie flat two-dimensional bodies 17, of metallic material in order to diversely deflect the beam paths of the light emitted by the LEDs 13 by means of reflections on their surfaces and thus glare the light

To reduce or even avoid observers.

3a shows a perspective schematic illustration of a lighting arrangement 1 according to a third exemplary embodiment. Fig. 3b shows a cross section through the

Illumination arrangement 1 of Fig. 3a. In this case, the optical active bodies 18 are provided as versatile bodies 18 mounted on the surface 12 of the board 10. They also lead to a reduction or even reflections on their surfaces

Avoiding dazzling the viewer. FIG. 4 a shows a perspective schematic illustration of a lighting arrangement 1 according to a fourth exemplary embodiment. Fig. 4b shows a cross section through the

Illumination arrangement 1 of Fig. 4a. Here, the optically effective body 18 are fixed on the surface 12 of the board 10 by imprint. As a result, they are comparatively flat, but preferably nevertheless formed increased in relation to the surface 12 of the circuit board 10. The shape and arrangement of the optically effective body 18 may preferably be used to form patterns or lettering. Nevertheless, the optically active bodies 18 are also capable of effecting the optical effects described above in this embodiment. At the same time the printing is a simple and inexpensive production method, which offers a great deal of flexibility in the design of the imprint and thus the additional decorative effect of the optically active body 18.

replacement blade 5a, 6a, 7a and 8a each show a perspective schematic representation of a lighting arrangement 1 according to a fifth, sixth, seventh or eighth

Embodiment. FIGS. 5b, 6b, 7b and 8b each show a cross section through the illumination arrangement 1 of FIGS. 5a, 6a, 7a and 8a, respectively. In these cases, the surface 19 of the light-transmissive material 15 by their own design and / or the addition of optically active bodies 20 each designed so that here the same optical effects as in the various optically active bodies 16, 17, 18 may occur ,

This is achieved in the fifth embodiment (Figures 5a, 5b) by inserting the optically active bodies 20 in the surface 19 of the translucent material 15, e.g. by sprinkling, stamping or impressing them in the light-transmitting material 15, in particular in the not yet completely cured translucent material 15. The optically active body 20 project completely into the transparent material 15 and preferably close outwardly with the surface 19 of the translucent Materials 15 flush off. In the sixth embodiment (FIGS. 6a, 6b), the optically effective bodies 20 extend completely out of the transparent material 15 and preferably close inwardly to the surface 19 of the body

translucent material 15 flush.

In the seventh embodiment (FIGS. 7 a, 7 b), the surface 19 of the light-transmitting material 15 is crossed by a zig-zag pattern both in the longitudinal direction X and in the transverse direction Y, so that facets or prisms form in the surface 19. In the seventh exemplary embodiment (FIGS. 8a, 8b), a zigzag pattern runs only in the transverse direction Y (longitudinal prism), so that in each case refractions result in these spatial directions.

The configurations of the surface 19 of the fifth to eighth embodiments may be applied both alone and in combination with each other and / or with one of the previous embodiments. For example, FIGS. 7a, 7b, 8a and 8b show an embodiment of the surface 19 of the light-transmitting material 15 in combination with the imprint of optically active bodies 18 of the fourth

Embodiment (see Fig. 4a, 4b).

replacement blade REFERENCE LIST (part of the description)

X longitudinal direction, length

Y transverse direction, width

Z height, thickness, strength

I Lighting arrangement, lighting strip, LED arrangement, LED strip

10 (flexible) body, carrier, base body, circuit board

II plug or plug connection

12 top or surface or front of the body 10th

13 light sources, LED light sources, LEDs

14 underside or rear side of the body 10

15 translucent material, coating, protective layer

16 floating optically active bodies for absorption in translucent material 15 17 floating optically active bodies for reflection, scattering, refraction in

translucent material 15

18 optically effective body mounted on top 12 for reflection, scattering, refraction in transparent material 15

19 top or surface of the translucent material 15th

20 optically active body for reflection, scattering, refraction in or on the surface 19 of the light-transmitting material 15th

replacement blade

Claims

1. lighting arrangement (1) with

a body (10) having a plurality of light sources (13), the

Light exit direction to at least one specific side (12) of the body (10),

wherein at least a part of the light sources (13) of a translucent material

(15) is coated,

characterized in that

in the translucent material (15) a plurality of optically active bodies (16, 17, 18, 20) are introduced, which for at least partial reflection and / or scattering and / or refraction and / or absorption of the light sources (13) emitted Light are formed,

wherein the body (10) is flexible, and

wherein the body (10) has a self-adhesive coating on a side (14) facing away from the specific side (12) of the body (10), preferably on the side (14) opposite the particular side (12) of the body (10).

2. Lighting arrangement (1) according to claim 1,

wherein the optically active bodies (16, 17, 18) are arranged such that they essentially cause reflection and / or scattering and / or refraction and / or absorption of the light emitted by the light sources (13) which is substantially perpendicular to the light source certain side (12) of the body (10) is emitted.

3. Lighting arrangement (1) according to claim 1 or 2,

wherein the optically active bodies (16, 17, 20) in the translucent material (15) to the specific side (12) of the body (10) are arranged spaced.

4. Lighting arrangement (1) according to claim 1 or 2,

wherein the optically active bodies (18) are fixedly mounted on the predetermined side (12) of the body (10).

replacement blade

5. Lighting arrangement (1) according to one of the preceding claims,

wherein the optically effective bodies (16, 17, 18, 20) are formed two-dimensionally and / or three-dimensionally.

6. Lighting arrangement (1) according to one of the preceding claims,

wherein the lighting arrangement (1) is a lighting strip (1).

7. Lighting arrangement (1) according to one of the preceding claims,

wherein the translucent material (15) and / or the optically active body (16, 17, 18, 20) is formed luminescent or are.

8. Lighting arrangement (1) according to one of the preceding claims,

wherein the lighting arrangement (1) is a lighting module (1), which is designed to be connected by means of plug connections (11) with further lighting modules (1).

9. Lighting arrangement (1) according to one of the preceding claims,

wherein a part of the light sources (13), preferably all light sources (13), are LEDs (13).

10. Lighting arrangement (1) according to one of the preceding claims,

wherein the plurality of light sources (13) comprises at least one light source (13) emitting light of a first color and at least one light source (13) emitting light of a second color.

11. Lighting arrangement (1) according to one of the preceding claims,

wherein the surface (19) of the translucent material (15) is designed for the at least partial reflection and / or scattering and / or refraction and / or absorption of the light emitted by the light sources (13).

12. Lighting arrangement (1) according to claim 11,

the optically active bodies (16, 17, 18, 20) projecting completely from the surface (19) into the translucent material (15), and / or

replacement blade wherein the optically effective bodies (16, 17, 18, 20) project completely from the surface (19) out of the translucent material (15), and / or wherein the surface (19) in the longitudinal direction (X) and / or in the transverse direction (FIG. Y) is crossed by a zig-zag pattern.

13. A method for producing a lighting arrangement (1) according to one of

Claims 1 to 3 and 5 to 12, with at least the steps:

Producing a body (10) with a plurality of light sources (13), the

Light exit direction to at least one specific side (12) of the body (10),

Mixing a plurality of optically active bodies (16, 17) into one

translucent material (15), and

Applying the translucent material (15) on the particular side (12) of the body (10) such that at least a portion of the light sources (13) are separated from the body (10)

transparent material (15) is coated and the optically active body (16, 17) reflect the light emitted from these light sources (13) light and / or scatter and / or break and / or absorb.

14. A method for producing a lighting arrangement (1) according to one of

Claims 1, 2 and 4 to 12, with at least the steps:

Producing a body (10) with a plurality of light sources (13), the

Light exit direction to at least one specific side (12) of the body (10),

Applying a plurality of optically active bodies (18) on the specific side (12) of the body (10) so that the optically active bodies (18) reflect and / or scatter and / or refract the light emitted by these light sources (13) and / or can absorb, and

Applying a translucent material (15) on the given side (12) of the body (10) such that at least a portion of the light sources (13) are separated from the body (10)

translucent material (15) is coated.

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15. A method for producing a lighting arrangement (1) according to one of

Claims 1 to 3 and 5 to 12, with at least the steps:

Producing a body (10) with a plurality of light sources (13) whose light exit direction points to at least one specific side (12) of the body (10),

translucent material (15) is coated, and

Applying and / or introducing a plurality of optically active bodies (20) onto and / or into the surface (19) of the translucent material (15) so that the optically active bodies (20) reflect the light emitted by these light sources (13) and / or scatter and / or break and / or absorb, and / or

Forming the surface (19) of the translucent material (15) for at least partial reflection and / or scattering and / or refraction and / or absorption of the light emitted by the light sources (13).

replacement blade