EP2041483A2

EP2041483A2 - Illuminating system of flexible shape

Info

Publication number: EP2041483A2
Application number: EP07785572A
Authority: EP
Inventors: Florian Wildner
Original assignee: Osram GmbH
Current assignee: Osram GmbH
Priority date: 2006-07-06
Filing date: 2007-06-27
Publication date: 2009-04-01
Anticipated expiration: 2027-06-27
Also published as: US20120182755A1; CN101535710B; CN101535710A; TW200811398A; WO2008003289A2; WO2008003289A3; EP2041483B1; DE102006031345A1; US20130135855A1; US8974084B2; US8360608B2

Abstract

An illuminating system (1) of flexible shape is disclosed, comprising at least one light diode (2), arranged on a flexible support material (4) and a lens (6) is provided which provides an even, directed and/or diffused light emission.

Description

description

Shapely flexible lighting system

Technical area

The present application relates to a formflexibles illumination system with at least one light emitting diode, which is arranged on a flexible substrate.

State of the art

There are lighting systems in which a plurality of LEDs arranged one behind the other in a flexible plastic tube with an approximately rectangular cross-section. A disadvantage of such light tubes is that the light effect that can be achieved with them, is limited to a point-like radiation of the LEDs, so that the light-emitting diodes are recognizable as individual points of light and it can lead to an unwanted glare.

Presentation of the invention

It is an object to provide a lighting system that is glare-free compared to conventional solutions

Lighting with flexible design and compact dimensions allows.

It is given a formflexibles lighting system with at least one light emitting diode. The light emitting diode is arranged on a flexible carrier material, wherein an optics is provided, which allows a uniform, directional and / or glare light emission. The illumination system is flexible in shape compared to the prior art, that is bendable and gives off light directed without glare due to the optics, wherein at the same time individual light spots are essentially not recognizable. Furthermore, the lighting system is characterized by a high integration of the LEDs and variability of the lighting options. In particular, a drop in the radiated radiation intensity between two adjacent light-emitting diodes is avoided or at least greatly reduced. In other words - there is a conversion of the individual LED light spots in a glare-free light line or light area. Along this line of light or out of this area of light radiation can emerge particularly evenly. This results in novel luminaires, which are suitable both for displaying, for example, information on screens, traffic signs, advertising space, or marking (rear lights), as well as for lighting. Due to the small dimensions, the lighting system is still predestined as an installation light. The flexibility makes it possible to use it on curved surfaces or to deform the lighting system in free space by attaching suitable devices or kinematics (rods, cables, tires, etc.).

It is particularly advantageous if the optics as, in particular of the light emitting diode, separate component is formed. In particular, the separate optics may be different from a potting for a semiconductor chip of the light emitting diode. Due to the interchangeable optics, the illumination system can be variably adapted to different lighting and lighting tasks by replacing the optics. There are several preferred embodiments of the optics possible, which can be advantageously combined with each other. For example, the light bundling, light control and light equalization by a lens and / or an optically acting medium (foil, glass, fluid, etc.), which is mounted with or without distance in front of the light emitting diode. For example, the optics can be formed by a lens optic, in particular by Fresnel lenses. Fresnel lenses are characterized in particular by a flat design. The formation of a lighting system of low height is thus simplified.

In a preferred embodiment, the overall height of the illumination system is 10 mm or less, in particular 5 mm or less. The overall height may also be further reduced and be 4 mm or less, preferably 3 mm or less, particularly preferably 2 mm or less, for example 1.5 mm or less.

The lens optic may be made of a rigid material, such as glass. However, embodiments are also advantageous in which the optic is formed by a nano- or microstructured film or by macrostructures, such as bulges, waves or nubs, in the film. In particular, the film variant has the advantage that thereby the size of the lighting system can be kept particularly low, at the same time a large, especially mechanical, flexibility is achieved. Rigid components (LEDs, lenses, etc.) can be brought into a quasi-flexible arrangement ("chain line") by means of a suitable structural design and connection. In a preferred embodiment, a microstructured film in the lateral direction, that is to say along a main direction of extent of the film, has a structure with structure sizes of 500 μm or less, preferably 100 μm or less, particularly preferably 10 μm or less. The radiation emitted by the at least one light-emitting diode during operation of the illumination system can thus be shaped in a simple and reproducible manner.

In a preferred embodiment, a nanostructured film has a structure with structure sizes of 1000 nm or less in the lateral direction. Further preferably, the structure size in the range of the emission wavelength of the associated light-emitting diode in the material of the film are, in particular between 0.2 times and five times the emission wavelength in the material of the film are. By means of such films, the radiation characteristic of the illumination system, for example, by diffraction effects, influenced and adapted to a radiation pattern predetermined the illumination system.

The film, in particular microstructured or nanostructured, can here be regularly, in particular periodically, recurrently or irregularly structured along one or more spatial directions.

However, it can also be a fluid used, which due to the different refractive indices between air and fluid a uniform, directed and glare-light effect is achieved. The use of fluids is especially advantageous if a great deal of flexibility is to be achieved.

But even the use of rigid materials may be advantageous. In particular, in the formation of optics as a lens system glass lenses or lenses of similar materials due to their ease of manufacture of advantage. The flexibility in this case is preferably provided by the fact that the rigid optics consists of several individual parts, but whose position is unchanged with respect to the light-emitting diodes, in particular also when the illumination system is deformed.

Furthermore, preferred embodiments of the illumination system may include a mount for the optics and / or at least one luminaire cover, in particular a tube, a (deep-drawn) film or a molded part, wherein the holder and the shell are formed so that they do not deformation of the illumination system obstructing.

In a preferred embodiment, the luminaire cover is formed by means of at least one element from the group consisting of molding, tube, film and thermoforming film.

In a preferred embodiment, the holder has at least two, preferably diametrically opposed, supporting elements. The optics are supported by these on the carrier material.

It has proved to be particularly advantageous if the optics are mounted in such a way that their position with respect to the LED remains substantially unchanged during a deformation of the lighting system.

Preferably used the illumination system emitting diodes flat construction, in particular of the type DRAGON, TOPLEDs ^0, PointLED ^® and / or SIDELED ^®, which provide the preferred flatness of the illumination system. Light-emitting diodes of the type DRAGON, manufactured by Osram Opto Semiconductors GmbH, are characterized in particular by a high radiation power with an electrical power consumption of 100 mW or more. These are therefore high-performance light-emitting diodes. Light-emitting diodes of the TOPLED type, manufactured by Osram Opto Semiconductors GmbH, in particular have a preferred emission direction which is perpendicular or substantially perpendicular to a mounting plane of the light-emitting diode. In the case of a light-emitting diode of the SIDELED type, manufactured by Osram Opto Semiconductors GmbH, the emission of the light-emitting diode preferably takes place predominantly along the mounting plane. Light-emitting diodes of the type PointLED, manufactured by Osram Opto Semiconductors GmbH, are characterized in particular by a compact design. The radiation characteristic of these light-emitting diodes can be approximated to that of a punctiform light source.

Furthermore, the light-emitting diodes of the illumination system are preferably designed as surface-mountable components. Surface mountable devices are also referred to as surface mountable device (SMD) devices. Such components can be easily assembled.

Generally, it is advantageous if the light-emitting diodes are colored and / or color-changeable. By such light emitting diodes radiation can be emitted, which is for the human eye leaves a colored, about red, blue, green or raischfarbigen, impression. In particular, the light-emitting diodes can have a plurality, for example three, light-emitting diode chips which emit radiation in mutually different spectral ranges, for example in the green, blue and red spectral range. Furthermore, the illumination system can be equipped with a combination, for example with regard to its spectral characteristic, of different light-emitting diodes.

In a preferred embodiment, a foil conductor and / or a flexplate is used as the carrier material, so that a flexible illumination system with an extremely low overall height is achieved. Furthermore, it is advantageous to apply the light-emitting diodes directly on the carrier material-that is, without the housing (COF - chip on flexboard). Another size minimization can be achieved according to a further embodiment variant by the use of height-optimized, in particular active or passive electronic components, such as height-minimized resistors and / or drivers, in particular film resistors, hybrid resistors or the like.

To improve the heat dissipation from the light-emitting diodes, at least one thin cooling element, in particular a cooling plate, with high thermal conductivity is preferably provided. Furthermore, the heat dissipation can be improved by filling the luminaire casing or the molded part with a material having a high thermal conductivity (metal, filled plastic, ceramic flakes, etc.). At higher power density of the LEDs, the heat conduction from the integrated cooling plate is preferably directly on an external heat sink, so without insulating plastic light housing. In this case, the external, for example, rigid heat sink may be formed only partially and magnetically mounted on the heat sink. In particular, the heat sink can be formed as a flexible corrugated sheet and be connected directly to the sheet, so that a functional combination of holding and cooling is achieved by the heat sink. Due to the thus optimized thermal management, the light output of the lighting system can be further improved with reduced space.

Due to the flat and flexible design, the lighting system can be designed as a flexible, flat light band. For this purpose, it is particularly preferred if a luminaire housing is formed as the light emitting diodes receiving hollow profile rail with a substantially rectangular cross section, in which the LEDs are arranged adjacent and form a common luminous surface. Such a rail, for example, as an extruded profile of a plastic, such as PMMA, manufacturing technology advantageously be made. The light band is preferably depending on the application in divisions (according to the electrical circuit grouping) ablängbar.

In a preferred embodiment, the hollow profile rail has an interior space for receiving the LEDs, the end face of an end piece or an electrical plug-in system (plug or socket), preferably sealed, is closed. It is preferred if these are formed in such a manner that at least one side surface mounted in the hollow profile rail state is flush with at least one side surface of the hollow profile rail. After an application-specific cutting to length of the light band this is so by means of the tail or the electrical plug-in system, preferably sealed, closed. The lighting system can be easily adapted to specific requirements in many areas.

For fastening the lighting system, for example on a ceiling, the floor, the wall or a piece of furniture, the hollow profile rail in a preferred embodiment can be inserted in a form-fitting manner in a mounting profile. It is advantageous if the hollow profile rail has at least one projection which engages in at least one guide groove of the mounting profile, or the hollow profile rail has at least one guide groove, in which engages at least one projection of the mounting profile.

In an alternative embodiment, the heat sink or mounting surface for mounting the lighting system is magnetically formed.

According to a further alternative embodiment, the side walls of the mounting profile at least one groove in which an approximately U-shaped trained fixedly arranged holder for fixing the illumination system engages positively.

Due to the flat and .flexible design, the lighting system can continue to be formed as a flexible, pixel-like flat lamp with a plurality of light-emitting diodes. For example, the flat lamp can be designed as a preferably active display, in particular for moving images. Such a flat lamp or such Flat display is suitable for application to curved surfaces with, even several, parallel or obliquely extending, curvature axes with different, even negative, bending radii.

The flat lamp can be cut into individual rectangles and can be further electrically connected via a connecting element (- cross). The production of the lighting system is easy to automate production technology and suitable for mass production, for example for the production of light wallpapers, advertising space and large-scale displays. For example, the lighting system for each pixel may have a light emitting diode, in which the emitted radiation power in the red, green and blue spectral range is controlled separately. Alternatively, a plurality of light-emitting diodes may be provided for each pixel, which emit radiation in different spectral ranges. A display for full-color representation is so easy to produce.

By varying the curvature, the illumination system is freely focusable. Furthermore, the most different beam angles can be realized.

The light-emitting diodes are, according to a preferred embodiment, individually controllable via a drive device, in particular via a bus, so that different light effects, such as light colors, accents or light dynamics and visual representations, such as static or moving images, can be realized. Brief description of the drawings

Further advantages, preferred embodiments and expediencies of the lighting system will become apparent from the embodiments described below in conjunction with the figures. Show it:

Figure 1 is a schematic, perspective view of a shape-flexible lighting system according to a first embodiment;

Figure 2 is a schematic, perspective view of the illumination system according to the first embodiment (Figure 1) without a hollow profile rail;

Figure 3 is a schematic, perspective view of a shape-flexible lighting system according to a second embodiment with flex board and a housing made of deep-drawn, laminated films;

Figure 4 is a schematic, perspective view of a shape-flexible lighting system according to a third embodiment in COF technology;

5 shows a schematic perspective view of a shape-flexible illumination system according to a fourth exemplary embodiment with Fresnel lens,

Figure 6 is a schematic detail view of the light rail according to the fourth embodiment (Figure 5) without plug-in system; 7 shows a lighting system according to a fifth embodiment in the inserted into a mounting profile state in a schematic, perspective view;

Figure 8 is a schematic representation of a lighting system according to a sixth embodiment, in which the hollow profile rail is fastened directly in a retaining clip for fastening the illumination system;

9 shows a lighting system according to a seventh exemplary embodiment with light emitting diodes emitting laterally, in the direction of a narrow side of the illumination system, in a schematic representation;

FIG. 10 shows the illumination system according to the seventh exemplary embodiment (FIG. 9) in the state inserted in a mounting profile and FIG

Figure 11 is a schematic representation of an eighth embodiment of an illumination system, which is designed as a flexible, pixel-like flat lamp with a plurality of light-emitting diodes.

Preferred embodiments of the invention

FIG. 1 shows a schematic representation of a shape-flexible illumination system 1 according to a first exemplary embodiment, with a plurality of light-emitting diodes 2 of the type TOPLED ⁸¹ . The light emitting diodes are designed as surface emitting components and emit in their operation radiation from one of the respective Mounting surface facing away. The LEDs are arranged one behind the other on a flexible substrate 4, wherein an optical system 6 is provided, which allows a uniform, directional and / or glare light emission. The illumination system 1 has a form-flexible design and emits light directed but without dazzling effect, wherein at the same time the individual light spots of the light-emitting diodes 2 are essentially not recognizable. The radiation power radiated by the illumination system thus does not fall off or at least only weakly in the region between two adjacent light-emitting diodes 2. Furthermore, the lighting system 1 is characterized by a high integration of the LEDs 2 and variability of the lighting options. This results in novel lights that are suitable both for displaying (eg information on screens, traffic signs, advertising space, etc.), marking (backlighting) and for lighting. Due to the small dimensions of the lighting system 1 is still predestined as an installation light. Due to the flexibility, the lighting system 1 can also be used on curved surfaces. Furthermore, the deformation can also be done in free space by the attachment of suitable, not shown devices or kinematics (rods, ropes, tires, etc.). Due to the flat and flexible design, the lighting system 1 according to FIG. 1 can be designed as a flexible, flat light band 8 (light rail). For this purpose, the luminaire housing as the light-emitting diodes 2 receiving, flexible hollow profile rail 10 is formed with a substantially rectangular cross-section, in which the LEDs 2 are arranged adjacent and form a common luminous surface 12. It is generally advantageous if the light-emitting diodes 2 are colored and / or color-changeable. In particular, the light-emitting diodes several, about three, LED chips have that emit radiation in mutually different spectral ranges, such as in the green, blue and red spectral range, radiation. Furthermore, the lighting system 1 can be equipped with a combination of different light-emitting diodes 2. Such a light rail 8, for example, as an extruded profile of a flexible plastic, such as PMMA, manufacturing technology be made advantageous. The light rail 8 can be cut to length depending on the application in divisions (according to the electrical circuit grouping). For fastening the lighting system 1, for example on a ceiling, the floor, the wall or a piece of furniture, the hollow profile rail 10 is positively in a mounting profile or other holder (not shown) inserted, with projections of the mounting profile or holder in two, preferably opposite , Side surfaces 14, 16 trained guide grooves 18, 20 of the hollow profile rail 10 engage. As a substrate 4 for the LEDs 2 is in the illustrated embodiment, a printed circuit board 22 provided with flexplate use, so that a flexible lighting system 1 is achieved with an extremely low height of about 6 mm. To improve the heat dissipation from the LEDs 2, two thin heat sinks 24 are provided with high thermal conductivity on the underside of the flexplate 4. Deviating from the illustrated first embodiment, the attachment to magnetizable surfaces can be carried out by cooling plates 24 formed as magnets or a magnetic background.

In the illustrated first embodiment, the hollow profile rail 10 has an inner space 26 for receiving the light emitting diodes 2, the both sides of an end piece 28 and / or an electrical plug contact 30, 32 (plug 30 or socket 32) is closable. About the plug contacts 30, 32, the lighting system 1 can be easily extended to a light rail of any length. The length of the lighting system 1 is thus adjustable by juxtaposing and electrically connecting a plurality of hollow profile rails 10 by means of the plug contacts in a simple and variable manner. In this case, the end piece 28 or the plug contacts 30, 32 are formed in such a manner that their side surfaces in the mounted on the hollow profile rail 10 state with its side surfaces are flush. The end piece 28 and / or the plug contacts 30, 32 are frontally inserted into the rail 8 and held releasably for example by a not shown latching connection in this.

According to FIG. 2, which shows an individual representation of the illumination system 1 from FIG. 1 without a hollow profile rail 10, the optic 6 in this embodiment is formed by a rigid lens optic 34 made of glass or plastic placed on the light emitting diodes 2. It is particularly advantageous if the lens optics 34 is formed as a separate component, so that the illumination system 1 can be variably adapted to different lighting and lighting tasks by replacing the optics 34. The flexibility is provided in this case by the fact that the rigid optic 6 consists of several individual parts, but whose position is essentially unchanged with respect to the light-emitting diodes 2 during a deformation of the illumination system 1. For this purpose, the lenses 32 with a holder 36, the two diametrically opposed support members 38, 40 has supported on the flexplate 4 and a form-fitting embracing this Luminaire sheath 42 of successively laminated, sealed films 44, 46 fixed on the light-emitting diode 2, wherein the holder 36 and the lamp cover 42 are formed so that they do not obstruct a deformation of the lighting system 1. By a variation of the curvature, the illumination system 1 is freely alignable and focusable. In addition to or instead of the lenses 32, an optically active fluid can be used, whereby due to the different refractive indices between air and fluid, a uniform, directed and / or glare-inducing light effect can be achieved. The use of fluids is particularly advantageous if a great deal of flexibility is to be achieved. Through the hollow profile rail 10 (see Figure 1) and the lamp cover 42, the light-emitting diodes 2 and other electronic components from environmental influences (water, dust, radiation, chemicals, sometimes external forces) protected (protection class IP65). The cooling plates 24 are also fixed in the lamp cover 42. The plug-in system 30, 32 (see FIG. 1) preferably also fulfills the protection class IP65. Such a running lighting system can also be used outdoors.

FIG. 3 shows a second exemplary embodiment of an illumination system in which the light rail 8 is designed to be further optimized in height. The construction height is preferably 5 mm or less, particularly preferably 4 mm or less, for example approximately 3 mm. In this variant, height-minimized light emitting diodes 2 of the POINTLED type are used, which are arranged on a flexplate 4 and embedded in a housing 48 of deep-drawn, laminated foils. This solution is characterized in particular by a microstructure and / or macrostructure integrated into the film housing 48 Optics 6, so that can be dispensed with further lens systems. The microstructured film preferably has a structure having feature sizes of 500 μm or less, preferably 100 μm or less, more preferably 10 μm or less.

A nanostructured film, in particular with structure sizes of 1000 nm or less, can also be used. In particular, the structure size can be in the range, preferably between 0.2 and 5 times, the emission wavelength of the associated light-emitting diode in the material of the film. The radiation characteristic can thus be adjusted for example by means of diffraction effects.

The structuring of the film can here be regular, in particular periodically recurring along one or more spatial directions, or irregular.

A further minimization of size is achieved by the use of height-optimized, in particular passive or active electronic, components, in particular height-minimized resistors and / or drivers, in particular foil resistors, hybrid resistors or the like.

Figure 4 shows a third embodiment of an illumination system 1, which is again designed minimized. The height is preferably 3 mm or less, more preferably 2 mm or less, for example height 1.5 mm. This embodiment differs from the above-described embodiment essentially in that the LEDs 2 in this variant directly - ie without housing - are applied to the flex board 4 (COF - Chip on Flexboard). The chip-on-flexboard technology is a production technology in microelectronics, in which unhoused semiconductors, for example light-emitting diode chips, are glued directly onto the printed circuit board 4 and then electrically contacted with microwires. Alternatively, the light-emitting diode chips can also be fastened and electrically contacted at least with one contact directly on the printed circuit board. This can be done for example by means of soldering.

In the fourth embodiment shown schematically in Figure 5, a light rail 8 is shown, in which both sides in the approximately rectangular hollow profile rail 10, a 5-pin connector system 30, 32 consisting of a plug 30 and a socket 32 and by means of fasteners 50, for example, rivets, screws or in clip art, is fixed. The plug 30 are provided for fixing in the socket 32 with RastvorSprüngen 52, which are inserted and fixed in corresponding recesses 54 of the socket 32 of an adjacent light rail 8. As a result, depending on the lighting situation, a flexible light band consisting of a plurality of light rails 8 can be constructed in a simple manner (plug & play).

According to FIG. 6, which shows a detailed illustration of the light rail 8 from FIG. 5 without plug-in system 30, 32, this fourth exemplary embodiment differs from that shown in FIG. 1 essentially in that the optics 6 associated with the light-emitting diodes 2 are designed as substantially U-shaped, flexible Fresnel lens 56 is formed. This is supported on its narrow sides on the flexplate 4 and fixed in the interior 26 of the hollow profile rail 10. In which illustrated embodiment, a cooling plate 24 is disposed with high thermal conductivity under the flexplate 4, to dissipate the resulting waste heat of the LEDs 2. Due to the thus optimized thermal management, the light output of the lighting system 1 can be further improved with reduced space. For fastening the lighting system 1, for example on a ceiling, the floor, the wall or a piece of furniture, the hollow profile rail 10 has on side surfaces 58, 60 two projections 62, 64, each in a guide groove 66, 68 of a mounting profile 70 (see Figure 7 ) engage, so that the hollow profile rail 10 is positively inserted into the mounting profile 70. In an alternative embodiment, not shown, for mounting the lighting system 1 on magnetizable surfaces, the cooling plate 24 or the mounting surface is magnetically formed.

According to FIG. 7, which shows a lighting system 1 according to a fifth exemplary embodiment in the state inserted into the mounting profile 70, the mounting profile 70 is substantially U-shaped and provided on its narrow sides with a respective groove 72, 74, into which an approximately U-shaped shaped trained, stationarily arranged holder 76 for fixing the illumination system 1 positively engages. In the illustrated illumination system 1, the plug-in system is provided with a connecting cable 78.

Figure 8 shows a sixth embodiment, in which the hollow profile rail 10 for fixing the lighting system 1, for example on a ceiling, the floor, the wall or a piece of furniture directly, that is without mounting profile 70 in a provided with a closure bracket 80 retaining clip 82 longitudinally displaceable and flexible is fixed in a bendable manner. Preferably, a plurality of spaced-apart retaining clips 82 are used for fastening the lighting system 1 use.

FIG. 9 shows a seventh exemplary embodiment of a light rail 8, in which light emitting diodes 2 of the SIDELED type, emitting laterally in the direction of a narrow side 84 of the illumination system 1, are used. Such light rails 8 require very little space and are for fastening the lighting system 1, for example on a ceiling, the floor, the wall or a piece of furniture, two provided on side surfaces 86, 88 of the hollow profile rail 10 projections 90, 92, according to Figure 10 in FIG each engage a guide groove 94, 96 of a mounting profile 98, positively in the mounting profile 98 can be inserted. The mounting profile 98 with a substantially U-shaped cross-section is provided on its broad sides, each with a groove 100, 102, in which an approximately U-shaped stationary trained holder 76 for fixing the illumination system 1 engages positively.

Due to the flat and flexible design, the lighting system 1 according to an eighth embodiment (Figure 11) as a flexible, pixel-like flat lamp 104 may be formed with a plurality of LEDs 2. In particular, the flat lamp 104 may be designed as a display, for example for moving images, or as a flat lamp 104 for a spherically curved luminaire or a headliner in vehicle technology. In this eighth exemplary embodiment, the light-emitting diodes 2 are applied in a matrix-like manner to a highly flexible foil conductor 106 and are electrically contacted by conductor tracks 108. The light emitting diodes 2 are preferably individually via a not shown Control device, in particular via a bus, controllable, so that different light effects, such as light colors, accents, light dynamics or optical representations can be realized. It is generally advantageous if the light-emitting diodes 2 are colored and / or color-changeable. For example, the light-emitting diodes may have different light-emitting diode chips which emit radiation in mutually different spectral regions. With light-emitting diodes, in which the intensity of the emitted radiation in the red, green and blue spectral range can be set separately, a full-color, active display device can be formed in a simplified manner. Furthermore, the lighting system 1 can be equipped with a combination of different light-emitting diodes 2. The optics 6 is formed by a respective, the light-emitting diodes 2 superior rigid lens optics 34 made of glass, which is designed as a separate component, so that the illumination system 1 can be adjusted by replacing the optics 34 variably to different lighting and lighting tasks. The flexibility is provided in this case by the lenses 32 being supported on the film conductor 106 by a support 36 made of two support elements 38, arranged diametrically opposite one another and fixed in a knob-like manner on the film conductor 106 via a film 110 encompassing them in a form-fitting manner, wherein the support 36 and the film conductor 106 are formed so that they do not obstruct a deformation of the Beieuchtungssystems 1. By a variation of the curvature, the illumination system 1 is freely alignable and focusable. By the film 110 and the film conductor 106, the LEDs 2 and other electronic components from environmental influences (water, dust, radiation, chemicals, some external forces) are protected (Protection class IP65). Such a flat lamp 104 or such a flat display is suitable for application to curved surfaces with, even several, parallel or obliquely extending axes of curvature with different, even negative, bending radii. The flat lamp 104 can be cut into individual rectangles and can be further electrically connected via connecting elements, not shown, for example, connection crosses. The individual lenses 34 can furthermore be connected to each other quasi-elastically, for example via a web or an expanded metal mesh. As a result, the lens system is also applicable to a light-emitting diode array with different light diode divisions.

The lighting system 1 is not limited to the illustrated embodiments, but the lighting systems 1 may have different shapes. As already explained at the outset, the illustrated light rails 8 and flat lamps 104 can be arbitrarily varied and combined on account of the dimensionally flexible, modular character of the lighting system 1.

Disclosed is a formflexibles illumination system 1 with at least one light emitting diode 2, which is arranged on a flexible substrate 4, wherein an optical system 6 is provided, which allows a uniform, directed and / or glare light emission.

The invention is not limited by the description with reference to the embodiments. Rather, the invention encompasses any novel feature as well as any combination of features, including in particular any combination of features in the claims, even if this feature or this combination itself is not explicitly stated in the patent claims or exemplary embodiments.

This patent application claims the priority of German Patent Application 10 2006 031 345.3, the disclosure of which is hereby incorporated by reference.

Claims

claims

1. Form-flexible lighting system (1) with at least one light-emitting diode (2), which is arranged on a flexible carrier material (4), characterized in that an optical system (6) is provided, which allows a uniform, directional and / or glare light emission.

2. Formflexibles illumination system according to claim 1, wherein the optics (6) is a lens optic (34), in particular a Fresnel lens (56).

3. Formflexibles lighting system according to claim 1 or 2, wherein the optical system (6) is designed as a separate component.

4. Form-flexible illumination system according to one of the preceding claims, wherein the optic (6) by means of a nano- and / or microstructured film (48) is formed.

5. Form-flexible lighting system according to one of the preceding claims, wherein the optics (6) has a macrostructure.

6. Form-flexible lighting system according to one of the preceding claims, wherein the optics (6) bulges, waves, knobs or the like.

7. Form-flexible illumination system according to one of the preceding claims, wherein the optic (6) comprises an optically active fluid.

8. Form-flexible lighting system according to one of the preceding claims, wherein the optic (6) is made of rigid material.

9. Form-flexible lighting system according to one of the preceding claims, wherein the optic (6) is made of glass.

10. Form-flexible lighting system according to one of the preceding claims, wherein the optics (6) via a holder (36) is held such that it does not hinder a deformation of the illumination system (1).

11. Form-flexible lighting system according to claim 10, wherein the holder (36) has at least two, preferably diametrically opposed support elements (38, 40) and is supported on the carrier material (4).

12. Form-flexible lighting system according to one of the preceding claims, wherein the optic (6) is mounted such that its position relative to the light emitting diode

(2) remains substantially unchanged during deformation of the illumination system (1).

13. Form-flexible lighting system according to one of the preceding claims, wherein the illumination system (1) flat-construction light-emitting diodes (2).

14. Form-flexible lighting system according to one of the preceding claims, wherein the lighting system (1)

® light-emitting diodes (2) of the type DRAGON, TOPLED, POINTLED ⁰ and / or SIDELED ^® .

15. Form-flexible lighting system according to one of the preceding claims, wherein the light-emitting diodes (2) are colored and / or color-changeable.

16. Form-flexible lighting system according to one of the preceding claims, wherein as a carrier material (4) a flexplate and / or a foil conductor (106) is usable.

17. Form-flexible lighting system according to one of the preceding claims, wherein the light-emitting diode (2) is applied unhoused directly on the carrier material (4).

18. Form-flexible lighting system according to one of the preceding claims, wherein the lighting system (1) further height-optimized components, especially height-minimized resistors and / or drivers, in particular film resistors, hybrid resistors or the like.

19. Formflexibles lighting system according to one of the preceding claims, wherein for the heat dissipation of the light-emitting diodes (2) at least one thin cooling element (24) is provided with high thermal conductivity.

20. Form-flexible lighting system according to claim 19, wherein the cooling element (24) is designed as a cooling plate.

21. Form-flexible lighting system according to one of the preceding claims, wherein the carrier material (4) with the at least one light-emitting diode (2) and optics (6) in at least one flexible light cover (42) is added.

22. Form-flexible lighting system according to claim 21, wherein the flexible lamp cover (42) is formed by means of at least one element from the group consisting of molded part, hose, film and deep-drawn film.

23. Formflexibles lighting system according to one of the preceding claims, wherein the carrier material (4) with the at least one light emitting diode (2) and optics (6) is accommodated in at least one flexible hollow profile rail (10) having a substantially rectangular cross section, in which the light emitting diodes ( 2) are arranged adjacent and form a common luminous surface (12).

24. Form-flexible lighting system according to claim 23, wherein the hollow profile rail (10) made of a flexible plastic, preferably of PMMA.

25. Form-flexible lighting system according to claim 24, wherein the hollow profile rail (10) is made of PMMA.

26. Formflexibles lighting system according to one of claims 23 to 25, wherein the hollow profile rail (10) frontally by an end piece (28) and / or an electrical plug-in system (30, 32) is closed.

27. Form-flexible lighting system according to claim 26, wherein the end piece and / or the plug-in system (30, 32) are formed in such a way that at least one side surface thereof in the mounted on the hollow profile rail (10) state with at least one side surface of the hollow profile rail approximately runs flush.

28. Form-flexible lighting system according to one of claims 23 to 27, wherein the hollow profile rail (10) for fastening the illumination system (1) is positively inserted into a mounting profile (70).

29. Form-flexible lighting system according to claim 28, wherein the hollow profile rail (10) at least one projection

(62, 64), which engages in at least one guide groove (66, 68) of the mounting profile (70), or the hollow profile rail has at least one guide groove, in which engages at least one projection of the mounting profile.

30. Form-flexible lighting system according to claim 29, wherein the side walls of the mounting profile (70) each have at least one groove (72, 74) into which an approximately U-shaped trained fixedly arranged holder (76) engages positively.

A flexible form lighting system according to any one of claims 1 to 22, wherein the lighting system (1) is formed as a flat pixel-like flat lamp (104) having a plurality of light-emitting diodes (2).

32. Form-flexible illumination system according to claim 31, wherein the flat, pixel-like flat lamp (104) is a display, in particular for moving images.

33. Formflexibles lighting system according to one of the preceding claims, wherein the light-emitting diodes (2) individually via a drive device, in particular via a bus, can be controlled.

34. Formflexibles lighting system according to one of the preceding claims, wherein the light-emitting diodes (2) are individually controllable via a bus.

35. Form-flexible lighting system according to one of the preceding claims, wherein a height of the lighting system (1) is 5 mm or less.

36. Form-flexible lighting system according to one of the preceding claims, wherein a height of the lighting system (1) is 3 mm or less.