DE102009058310A1 - LED luminaire insert with light-deflecting element - Google Patents

Abstract

The invention relates to a lamp insert with a light-guiding element, wherein the lamp insert comprises: an elongated support element which is arranged along its circumference about the longitudinal axis for receiving circuit carriers for LEDs or surface sections along its circumference around the longitudinal axis, at least partially itself as DB = EPODOC & ... PN = EP0998221 A circuit carrier for LEDs is arranged, and a multiplicity of LEDs are arranged on at least one of the circuit carriers, and wherein the light - guiding element which extends around at least part of the circumference of the carrier element in front of the circuit carrier has a plurality of segments, each segment having at least one Reflecting surface and / or a refractive portion, which is associated with each of an LED or a series of LEDs, which extends transversely to the longitudinal extent of the LEDs.

Description

The The present invention relates to an LED luminaire insert with a light-guiding element for later Installation in luminaires z. B. in outdoor lights.

The progressive development in the field of LED technology enables a increasing use of LEDs as bulbs in different Areas of lighting technology. In particular, allow high-intensity LEDs also a use in the field of outdoor lighting, such as B. the traffic lighting. These areas have been so far of high pressure sodium vapor lamps and high pressure mercury vapor lamps dominated. However, these are often partially harmful to the environment and have only a low efficiency in the conversion of electrical Energy in light. Furthermore, these lamps are often expensive additional Optics or reflectors necessary to produce a desired light distribution. In addition, such lamps are usually not dimmable, and the used electrical ballasts have a low efficiency on.

It is therefore desirable To provide a lighting unit, which is an efficient use the electrical energy allows and on using more environmentally harmful Materials largely dispensed with. Furthermore, it is advantageous if the lamps used are dimmable and the generated Light can be steered in a simple manner in a simple way to a desired To achieve light distribution. Although alternative lighting devices already known on LED basis, it is also economical Often not useful, existing lighting systems, such. Street lighting, Completely to dismantle it to replace it with new lighting equipment.

task The present invention is therefore with the least possible effort available lights, as they are encountered in particular in the field of outdoor lighting are to improve in terms of more efficient use of energy.

The invention achieves the object by a light insert with a light-guiding element, wherein the light insert comprises:
an elongated carrier element arranged along its circumference about the longitudinal axis for receiving circuit carriers for LEDs or having surface sections along its circumference about the longitudinal axis, which are themselves at least partially configured as circuit carriers for LEDs,
and a plurality of LEDs disposed on at least one of the circuit carriers, and wherein the light-directing element extending around at least part of the circumference of the carrier element in front of the circuit carrier has a plurality of segments, each segment having at least one reflection surface and / or one refractive surface Section which is associated with each of an LED or a series of LEDs, which extends transversely to the longitudinal extent of the LEDs.

In one embodiment, the luminaire insert further comprises a structural element, which is connected to the carrier element and serves to support the carrier element in the luminaire housing,
at least one electrical operating device ( 50 ) for the electrical supply of LEDs and a plurality of LEDs, which are arranged on at least one of the circuit carriers. On the at least one circuit carrier LEDs, including OLEDs are to be understood, arranged. Furthermore, one or more further electrical components can be arranged on the circuit carriers. In particular, in one embodiment, the circuit carriers can have a sensor, in particular a temperature sensor, for example a temperature-dependent resistor. Furthermore, in one embodiment, the circuit carrier can have a current regulation circuit. Furthermore, conductor tracks may be arranged on the circuit carriers, which contact the LEDs and / or electrical components.

In an embodiment can the circuit carrier have a cylindrical shape on the outer surface of the LEDs are arranged. In this way, an arrangement can be achieved with which can emit the LEDs in different spatial directions. The Arrangement of the LEDs affects the overall light distribution of the Lamp.

In a further embodiment, circuit carriers may be used which have a substantially planar surface. In this case, a plurality of circuit carriers may be composed such that respective adjacent circuit carriers are aligned at one edge. When n circuit carriers are used, an n-corner may result, in particular in the cross-section of the arrangement, the LEDs being arranged on the outside of the n-corner. Such a planar design of the circuit carriers offers the advantage that the LEDs can be mounted by means of methods known in the provision of planar LED modules. According to one embodiment, the arrangement of circuit carriers forms a uniform n-corner, z. B. a uniform hexagon. At a polygon of at least five corners, a relatively uniform light distribution can be achieved by 360 ° of the luminaire insert. Also the application of conductor tracks and the equipment with further electrical components z. As sensors, is facilitated by the use of circuit boards with a flat surface. In order to provide a light distribution, as is particularly useful in the field of traffic route lighting, and on the other hand, to keep the number of circuit carriers within economic limits, in particular, the use of five or six circuit carriers offers. In particular, a higher number may allow a finer angular distribution of the radiated light, but on the other hand requires a higher assembly outlay.

Of the circuit support can be designed in particular as a printed circuit board (PCB). Further, it can improve the heat dissipation as a printed circuit board with metal core (MCPCB) be. In a further embodiment can the circuit carrier a metallic core having on its surface with a dielectric is provided. In particular, conductor tracks can be used on the dielectric be arranged. Preference is given here to the use of a metallic Core of aluminum.

alternative can Surface sections of the support element even as a circuit carrier be educated. According to one embodiment are metallic interconnects on the surface of the support element or an electrical Insulating layer of the surface the carrier element appropriate.

Of the circuit support can have a matrix of columns and rows in which the LEDs are positioned. In particular, the matrix can be uniform z. B. have the same distances in the vertical and / or horizontal direction. For a given matrix, the distribution density of the LEDs vary to be able to it is possible in one embodiment, the Activate LED at a position of the matrix with an electrical bridge or disable. The circuit carrier can in this embodiment a uniform arrangement of columns and rows of possible LED connection postions have while the LEDs evenly or unevenly on it can be distributed. In one embodiment can also possible LED connection positions that are not occupied by LEDs, with a electric bridge be short-circuited, because a series circuit of the ELDs or the LED positions is provided.

In an embodiment can the LEDs are arranged so that they can be contacted individually from the outside are and can be controlled individually. Furthermore, in some Embodiments of Circuit board have outer terminals, the especially for the supply of electrical energy. Prefers can this designed as a plug connection be. In particular, when using multiple circuit carrier in a luminaire insert an arrangement of the plug advantageous in which a parallel or series connection of the individual circuit carrier is possible, in which itself do not cross the means of connection. Furthermore, in one embodiment the circuit carrier be provided with a protective coating which protects against Moisture serves. The coating can be used as a transparent coating or coating performed be.

In an embodiment can the carrier element in cross-section perpendicular to its longitudinal axis an outer profile have, which is similar to the cross section of the arrangement of the circuit carrier. Especially can the carrier element have an N-shaped cross-section. In one embodiment can the carrier element a tubular, hollow one Be element on whose outer surface the circuit support are arranged. In this embodiment can the carrier element especially channels have to the circuit carrier to fix for example by means of screws. In another embodiment the support element can be massive accomplished be. Because the heat, which arises when operating the LEDs, essentially from the LEDs over the circuit carrier to the support element flows, and from this a heat flow to the structural element is a use of a material for the support element advantageous, which has a good thermal conductivity has. In particular, the support element may comprise aluminum. In further embodiments can the carrier element Include iron or copper.

According to one embodiment can at least one circuit carrier by means of a screw or clamping device or be attached by means of an adhesive method on the support element. To create a good thermal contact can be a forming Cavity between the circuit carrier and the carrier element with a thermally conductive Material (eg a thermal grease) filled out be.

The invention further provides a structural element. This serves for the mechanical stability and the attachment of other components of the luminaire insert, in particular the carrier element, in the luminaire housing. Preference is given here to the use of a metallic material. In one embodiment, the structural element may be made of aluminum. Due to the high thermal conductivity of aluminum, this allows an efficient dissipation of the heat generated in the LEDs. Furthermore, the structural element can be provided with outer surfaces, via which the heat energy can be released into the air. Furthermore, aluminum is a relatively low density material which increases the overall weight of the material Structure is minimized. The structural element may also be a casting or have a construction of sheets.

To the simple retroactive Installation of the luminaire insert is the structural element further with a Fasteners provided to the luminaire insert on the lamp to fix. In particular, the structural element can be threaded exhibit. In further embodiments can other fastening means, such as in particular means for a latching connection be provided.

In some embodiments can also be the carrier element furthermore fastening means for a component of the luminaire to be rehabilitated, z. B. for a lampshade or Have luminous lid. In particular, for use in mushroom lights a fastening means, such as a threaded pin, on the carrier element be provided to a roof element of the lamp housing Fasten.

Further the luminaire insert can have one or more cover elements. These serve, in particular, subregions of the luminaire insert cover, which are not provided with LEDs or reflectors. The cover elements can made of a metallic material, in particular aluminum be. In addition to a decorative benefit, the cover elements can also for cooling contribute to the lamp. In particular, openings may be provided for ventilation be. Furthermore, can the cover elements have surface areas, which for the release of heat loss contribute to the surrounding air. In a further embodiment can the cover in one piece on Structure element formed. Further, the cover member may have an opening or Have recess through which an electrical connection of the lamp he follows. The opening or recess can about it In addition, have a lid which is attached to the cover is.

The at least one operating device of the luminaire insert is used for the electrical supply of the LEDs. The operating device In addition to power electronic components, it can also contain logic. In particular, the operating device can also be a control module (z. B. a Siteco Light Control (SLC) block) have. hereby This results in particular the advantage of all LEDs together or individual Individually regulate LEDs and a lighting scenario needs to be able to program. In this way, z. As an overlight be avoided and energy consumption can be reduced. Especially the possibility of using a control module the lighting level corresponds to the actual requirements adapt. This offers in particular with regard to the use of the luminaire insert in the traffic route lighting advantages. For example can be achieved by a needs-based regulation of street lighting the lighting level at accident sites or unfavorable Weather conditions increased which can reduce the risk of accidents.

Further can in one embodiment the operating device comprise an electrical converter. This serves to convert the from the outside provided electrical energy in a voltage, which to Operation of the LEDs needed becomes. In particular, the electrical converter can be designed as a down converter, which one from the outside provided higher Voltage into a lower voltage suitable for operating the LEDs transforms.

According to one embodiment the luminaire insert furthermore has light-guiding elements which are arranged in front of the LEDs in the emission direction. The light-guiding elements can furthermore, in particular, a transparent or opal plastic, z. B. PMMA have. Possible is in particular the use of plastic injection molded parts.

Further can the light guide elements a reflective or partially reflecting surface coating exhibit. The coating can be in particular the materials Include aluminum, silver or gold. This is possible in particular applying the material by means of a vacuum metallization process. In one embodiment a coated portion of the surface should be smooth or frosted. Furthermore, a coated portion of the surface with Be faceted. To achieve a desired light distribution can the light guide beyond further molded or usable refractive or light-scattering Have elements such. As a Fresnel lens, a prism, a Diffuser or a combination of these elements.

In one embodiment, the light-guiding element is embodied in a plurality of segments which each have means for the mechanical connection of the segments to one another. The means may be integrally formed from the material of the light guide unit or attached as separate elements to this. The connecting elements can be formed so that individual segments can be connected to each other both in the horizontal and in the vertical direction. By arranging different segments in the vertical direction, ie stacking of the segments one above the other, in particular the light distribution in the radial direction relative to the luminaire can be influenced. By connecting different segments in the horizontal direction, the light distribution in annular areas, which concentric around the luminaire. In order to optimize the light distribution for a desired application, the individual segments can be designed differently. In particular, different segments may have different dimensions in the horizontal and vertical directions.

In an embodiment the light-guiding element reflector surfaces, to reflect the light emitted by the LEDs. Through an optimized arrangement or alignment of the reflectors can be here the desired light distribution to adjust. In particular, you can Subregions of the reflectors light from an LED group, the z. B. arranged in a row, in a light-near area (in Within a radius of 10 m to the light), while other parts of the Reflectors the light of the same LED or LED group in a more luminous Steer area. In particular, you can two subregions of the reflectors, the light in the Nah- or remote area of the lamp steer, one above the other, z. Inside a segment of the light-guiding element.

According to one preferred embodiment forms the light guide element several compartments, the two opposite each other or four about box-shaped arranged reflector surfaces includes. Preferably, the reflector surfaces, which are transverse to the longitudinal axis the carrier element are arranged opposite the longitudinal axis the carrier element inclined. By doing so leaves with a downwardly facing reflector surface, the light radiation of Redirect the LED to the area close to the light, while the upward facing reflector surface redirects the light from the LED to the area away from the light.

According to one embodiment are the subjects composed of the segments of the light-guiding element. One segment each can do the upper half and the lower half two adjacent subjects include. It is also envisaged that a segment of the light-guiding element one or more complete Subjects, each formed of two or four reflector surfaces comprises.

In a further embodiment can parts of the light-guiding element connected together by means of a supporting structure be. The use of a separate support structure can in particular the mechanical stability of the construction increase. Furthermore, this makes the use of different parts of the light-guiding element relieved, for example for a Combination of segments with different dimensions. The supporting structure itself can be made of a transparent, opal material. In particular, the support structure may be made of plastic. Alternatively or in addition The support structure may also comprise metallic elements.

According to one another embodiment the supporting structure from the outside being visible. In particular, in one embodiment, a partial area be formed of the support structure as a light guide, resulting in the appearance of the luminaire can be specifically influenced. Especially The support structure can continue with fluorescent or light-scattering Particles are provided, which parts of the support structure as illuminate the glowing framework.

The Light distribution of the lamp is in an embodiment in particular by the arrangement of the individual LEDs on the circuit board, the arrangement the circuit carrier in the lamp, as well as the arrangement and design of the light-guiding elements affected. For example, let through an increased packing density Intensify the illuminance with LEDs in an angle range of the LED module. Such an embodiment may be advantageous to use in one application to the street lighting Specific areas of the street targeted stronger too illuminate, and on the other hand subregions, which are located off the road are less illuminating.

Of the inventive lamp insert can used in the field of indoor and outdoor lighting. Particularly advantageous is the use in the field of outdoor lighting, z. B. in the field of traffic lighting or lighting of Parks or squares. By the interchangeability of the luminaire insert can this in different Luminaire families are used. Possible is a use z. B. in mushroom lights, pole lights, lanterns or bell lights. The luminaire insert can be designed so that it is the mechanical Requirements of the individual lighting families. For example can the luminaire insert for the use in a bell light be designed so that he in a hanging Position can be mounted.

According to one embodiment can the LEDs on the circuit boards be arranged so that the light distribution substantially in concentrated in two directions. For this, the LEDs are aligned that their emission direction has a horizontal projection, which is an angle of about 90 ° about 180 °, in particular about 100 ° to about 160 °, z. B. includes about 120 °. A such light distribution is particularly advantageous for the application as adjoining street lighting, because the light of the lamp, which is located at the edge of the road, along the street or the sidewalk next to the road, but not towards the house facade.

According to another embodiment For example, the light distribution in a horizontal plane may be approximately isotropic. This can be done in particular by an arrangement of the LEDs and the light-guiding elements, which is approximately radially symmetrical in a horizontal sectional plane. In particular, the circuit carriers used in one embodiment may have the same dimensions and the same LED distributions, and be arranged to one another in a manner such that they form a regular n-corner in a horizontal cross section. Such a light distribution is advantageous, in particular for a court lighting.

According to one embodiment can for equipping the circuit carrier LEDs with different light color can be used. Especially in connection with the use of a control module can at this embodiment also LEDs with different light color can be targeted. In this way, the light color of the lamp can be adjusted. In particular, you can when using multiple circuit carriers in a luminaire insert the circuit carrier different Have distributions of the LEDs, so that, for example, on a the circuit carrier used LEDs of one particular color dominate while another circuit carrier dominates more LEDs of a different color ..

According to one embodiment can the lighting level provided by the light is done by dimming individual LEDs or LED groups. In a further embodiment can the lighting level over switching on or off individual LEDs or LED groups targeted to be influenced.

to Targeted adjustment of a specific light distribution can be done in one embodiment the number of LEDs, which in a certain solid angle range radiate, vary. Here is the total number of LEDs as well Their maximum power output is decisive for the dimensioning of the operating device. Advantageous Here, in particular, the use of about 5 to about 200 LEDs, in particular 10 to 100 LEDs, in particular 20 to 50 LEDs. The distribution of the LEDs on the circuit carrier or the circuit carriers can be particularly inhomogeneous. This results in a light distribution the lamp, which in different areas of space different intensity shows.

According to one embodiment can the LEDs on the circuit board be arranged in rows. These rows can z. B. vertical or horizontal run. In a horizontal row, for example, 1 to 5 LEDs are arranged side by side. A similar dimensioning is also for vertical Rows possible. To achieve a special light distribution is also an inhomogeneous Distribution possible.

The individual LEDs on a circuit carrier can according to one embodiment be contacted by means of tracks. Also a contact by means of a separate wiring is possible.

According to one embodiment the LEDs are soldered on the circuit carrier. Possible is also a fortification using a bonding method. These procedures ensure also an efficient heat dissipation from the LEDs in the circuit carrier. Furthermore, an attachment by means of an adhesive method possible.

Around efficient cooling to enable the LEDs it is in one embodiment advantageous if, for the heat flow important components of the LED module, such as the structural element, the support element and the cover a thermally highly conductive material, such. B. aluminum. Furthermore, can the carrier element and / or the structural element be made so that inside the LED module a cavity is formed through which air can flow. In particular, in one embodiment inside the LED module a cavity formed.

Further can in one embodiment the lamp insert continue to have a fan, which for cooling contributes. The air flow generated by the fan facilitates a thermal Convection, by which heat can be released from the components of the lamp to the air. In one embodiment Furthermore, the LED module can be a controllable heat source in the upper area have, by which convection is additionally stimulated. Is possible in particular, the use of a Venturi nozzle.

Furthermore can in some embodiments of the lamp insert some components, such. B. the structural element or the carrier element, and the cover additional, surface enlarging features exhibit. In particular, you can in some embodiments the surface enlarging Characteristics as rib-shaped or lenticular trained surface profiles to be available.

Further Features and advantages of the present invention will be apparent from a preferred embodiment explained in conjunction with the following drawings, the Represent:

1 shows schematically various components of the luminaire insert in Explosionsdar position.

2 shows the arrangement of the light guide unit on the lamp insert partially in exploded view.

3 shows a complete light guide unit of an embodiment, wherein two elements of the light guide unit are shown separately.

4a and b show elements of a light guide unit.

5a and b show a section of the light guide unit in a vertical and a horizontal section.

6a to g show arrangements of LEDs on a respective circuit carrier.

7 shows a mushroom lamp with the light insert.

8a and b show an alternative embodiment of a glare element in top view and from the side.

9a and b show a further alternative embodiment of a glare element in plan view and from the side.

10 shows a cross section through the Lichtlenkeinheit with the Entblendungselementen after 9a and b.

11 shows an alternative embodiment of the lamp insert partially in exploded view.

12 shows a further alternative embodiment of the lamp insert partially in exploded view.

13 shows a further embodiment of the lamp insert partially in exploded view.

In 1 is an exploded view of a light insert shown. In the upper part of the luminaire insert is a support element 20 which has an elongated shape and surface portions on the peripheral surface about the longitudinal axis 21 Are defined. The surface sections 21 the carrier element 20 are each approximately planar and define in a cross section perpendicular to the longitudinal axis of the support member a regular hexagon.

In every surface section 21 is also a groove 22 in the longitudinal direction of the carrier element 20 provided, which is suitable that screws and guide elements at any height along the groove 22 can intervene. On every surface section 21 the carrier element 20 is in each case a circuit carrier 30 by means of screws 31 through holes 32 attached (see 2 which is a circuit carrier 30 at a distance from the carrier element 20 represents) on the circuit board are LEDs 35 arranged.

The carrier element 20 is made of aluminum to provide good heat conduction. It closes down a structural element 10 which is formed in the present example of several angled elements, also made of aluminum. On the support element 20 opposite side of the structural element 10 are bends 11 provided by means of which the luminaire insert can be fixed in a housing of a lamp in an upright position. The structural element 10 is also on the outside with covers 60 dressed. These covers 60 are also made of aluminum and support the cooling of the luminaire insert by ambient air. Within the structure element 10 is a control gear 50 arranged. The operating device 50 is by means of an electrical terminal 51 on the structural element 10 can be connected to the existing electrical leads in the lamp. The operating device 50 has a voltage converter to convert the voltage of the mains supply to the required voltages for the operation of the LEDs. The operating device 50 supplied via cable (not shown in the figures), the circuit carrier 30 with the necessary supply voltage of the LEDs 35 on the circuit board 30 are arranged.

Optionally, there is a control module 55 with the operating device 50 connected. The control module 55 allows the LEDs 35 on the circuit carrier 30 due to predetermined control parameters, such. B. the daytime or due to measuring sensors on the lamp insert, to switch and dimming. In particular, individual groups of LEDs can also be used 35 on the circuit boards 30 be switched or dimmed differently.

In 7 the luminaire insert is shown in a street lamp, a so-called mushroom lamp. Through a transparent housing cover 82 the luminaire insert can be seen in an upright position. In the area of the structural element 10 are outward only the covers 60 to recognize.

On top of the carrier element 20 is also a threaded pin 27 intended. This serves as in 7 shown a housing roof 80 at the upper end of the carrier element 20 to Fasten. The structural element 10 is with the angle approaches 11 in a luminaire housing socket 83 on the end of a lampshade 81 attached (in 7 from a pedestal 83 concealed). The structural element 10 and the carrier element 20 are so sturdily constructed that they remove the luminaire housing from the socket 83 the cover 82 and the housing roof 80 can also support.

Around the circumference of the support element 20 or the circuit carrier 30 is also a light-guiding element 40 arranged, which in the example shown of several stacked segments 41 is formed. The 4a and 4b each show a single segment 41 as a single item. Two segments 41 connected to one another result in an approximately annular, more precisely a hexagonal structure, which surrounds the carrier element 20 or the circuit carrier 30 can be arranged. On the inside of the segments 41 of the light-guiding element 40 are latching noses 45 and projections 46 provided with which the segments 41 on the circuit boards 30 can be mounted in appropriate wells.

Like in the 3 you can see several segments 41 stacked one above the other up to a height about the length of the support element 20 or the circuit carrier 30 equivalent. As in the 1 and 2 shown, the structure of the light-guiding element 40 from the individual parts around the circumference of the support element 20 or the circuit carrier 30 be attached.

Referring to 2 It can be seen that each has a number of LEDs 35 extending transversely to the longitudinal direction of the carrier element 20 extend a segment 41 of the light-guiding element 40 assigned.

The photometric function of the individual segments 41 of the light-guiding element 40 is in the 5a and 5b shown.

The segments 41 have in the horizontal direction one above the other differently inclined reflecting surfaces 401 and 402 on. The reflector surface 402 ensures due to their arrangement above the LED 35 that light according to the beam path 1001 is reflected down. This radiation contributes to lighting in the area close to the light (eg around 10 m around the luminaire). The radiation 1002 which the LED 35 without reflection on the light-guiding element 40 leaves as well as the radiation 1003 and 1004 , which at the upwardly facing reflection surfaces 401 In contrast, the luminaire leaves around a horizontal direction. The light radiation thereby contributes to the illumination of the more luminous areas.

The light steering within a horizontal plane is in 5b shown. Side reflector surfaces 404 make sure that the light distribution, which of each one LED 35 is generated is limited in the lateral direction. As a result, the reflector surfaces carry 404 in that the light distribution of the lamp is focused on the radial of the longitudinal axis in the middle of the two reflector surfaces of the support element stronger.

In addition to the previously mentioned reflector surfaces 401 . 402 and 404 of the light-guiding element 40 this still shows optical glare elements 420 in the form of light-scattering transparent plates 420 on, each between two segments 41 approximately parallel and in close proximity to the circuit carriers 30 extend. The glare element 420 is by means of positioning holes 403 between each two segments 41 held.

The 8a and b or 9a and b show two alternative embodiments of the anti-glare element 420 ' respectively. 420 '' , As in the 8a and 8b shown, the Entblendungselement has in several rows 421 ' arranged on one side of the Entblendungselements lenticular elevations 422 ' with a radius of curvature R. This optical structure is selected so that the light from the LEDs is deflected downwardly focused. The middle row of lenses is at the thickest point below a major axis of LEDs, causing the deflection down. The shape of the lenticular elevations 422 ' is selected so that the light is focused more in the vertical direction than in the horizontal direction. In the embodiment shown, the lenticular elevations form wedge-shaped part cylinders with a radius of curvature R. Thus, a uniform illumination of the effective area is achieved. The height H of the rows and the width A of the lenticular elevations 422 ' are preferably selected so that a displacement of the LEDs relative to the anti-glare element 420 ' remains with a variety of LEDs without optical effect. As a result, the light distribution generated remains even with inaccuracies in the positioning of the glare element 420 ' receive. The lenticular projections are arranged adjacent to each other in the rows. In other embodiments, gaps may still be provided therebetween.

According to the alternative embodiment according to 9a and 9b are only in the upper area of the surface structure of the glare element 420 '' string 421 '' with lenticular elevations 422 '' , in the example shown three rows 421 '' , intended. In the lower area of the glare element 420 '' the anti-dazzle element is frosted or clearly stated.

The 10 shows in cross-section the Entblendungselemente 420 '' in the installed state. The positioning pin 423 '' engages in the positioning holes (in the 10 not visible) of the segments of the light-guiding element. This will be the glare element 420 '' in a defined position relative to the LEDs 35 held. The glare elements 420 and 420 ' be in the same way as in 10 for the glare element 420 '' positioned.

Alternatively, at the location of the glare element 420 also a refractive device, such. As a lens may be provided. In this embodiment, two opposing reflector surfaces are preferred 401 and 402 and the two intermediate reflector surfaces 404 provided integrally in a segment of the light-guiding element.

The stacked segments 41 of the light-guiding element 40 therefore form through their reflective surfaces 401 . 402 and 404 in each case a compartment which is associated with an LED or a series of LEDs on the circuit carrier. The light control can be done by selecting the angle of the reflector surfaces 401 . 402 and 404 be precisely adapted to the requirements, because the LED 35 as a nearly point-shaped radiator emits light with a defined scattering angle. In contrast to a radiant surface light source, such as a fluorescent tube, which emits light over the entire circumference, therefore, the light-guiding element 40 According to the present embodiment, the arrangement of the light sources can be tuned much more precisely.

The arrangement of LEDs on the circuit boards 30 is in for various embodiments in the 6a to 6g shown. It should be understood that different circuit carriers on different sides of the support element 20 a luminaire insert according to an embodiment of the invention can be provided.

The basic structure of the arrangement of the LEDs on a circuit carrier 30 is in 6a shown. The circuit carrier 30 has an electrical connection 301 in the form of a plug, which via an electrical cable (not shown) with the operating device 50 or the control module 55 is connected. On the circuit board 30 are also located in several rows and columns arranged positions 303 , which are provided with electrical conductor tracks (not shown) on the circuit carrier 30 are connected to solder LEDs at these positions. Further, bridge elements 302 each intended for LED position. By plugging or unplugging 0 Ω jumpers, the electrical supply of a designated position for the LEDs can be activated or deactivated.

The 6b to 6g For example, indicate how intended positions 303 can be occupied with LEDs. All LED positions can be occupied by active LEDs ( 6d ). Such an arrangement is preferred for one side of the carrier element 20 which points in a direction in which a lot of light should be emitted. For circuit carriers pointing in directions where less light is to be emitted, some columns or all but one column may have no function ( 6b . 6c and 6f ). Furthermore, the rows may also be within a circuit carrier 30 be occupied differently (see 6e and 6g ). The latter is particularly preferred if a particular light effect with respect to the appearance of the luminaire in the longitudinal direction of the support element to be generated. For example, it may be desirable for the luminaire to be brighter in the lower area and darker in the upper area, which can be achieved by the corresponding uneven arrangement of the LEDs. Also, an asymmetric distribution within the rows may be desired. Corresponding examples are in the 6f and 6g specified.

As previously with reference to the description of the light guide member 40 each described is a segment 41 or a compartment, which consists of the top and the bottom of two successive segments 41 results, assigned to an LED row. It is also possible that the segments 41 of the light-guiding element are not identical to one another. Then can be generated by the appropriate arrangement or wiring of LEDs on the circuit board, a different light distribution of the luminaire insert.

The equipment of the circuit carrier 30 With LEDs in different positions the regular matrix can actually be physically done by occupying only certain positions. But it is also possible that LEDs are arranged at each position of the matrix, but are switched only in different groups, the circuit preferably by the control module 55 he follows. This allows different light effects to be generated at different times of the day. Furthermore, the lighting effects can be brought about not only by the switching on and off of LEDs, but also by continuous dimming of LEDs or groups of LEDs at selected positions within the circuit carriers 30 ,

Further embodiments of luminaire inserts according to the invention are in the 11 . 12 and 13 shown. These light inserts are the light guide elements 40 ' . 40 '' respectively. 40 ''' in contrast to the previously described light guide elements 40 completely formed of refractive material. The surface structure of the light-guiding elements is designed such that they act like a lens and achieve comparable light guidance as the previously described embodiment of the light-guiding elements 40 , The light directing elements of refractive material, like the embodiments with reflecting surfaces, comprise a plurality of segments 41 ' . 41 '' respectively. 41 ''' each associated with a group or row of LEDs at a height on the support member. According to the embodiments according to 11 and 12 the light guide elements are formed from approximately part-cylindrical elements, which from the outside on the support element 20 can be put on. According to the embodiment according to 13 are the segments 41 ''' of the light-guiding element 40 ''' formed approximately cylindrical and are pushed axially onto the support member. The embodiment according to 13 also has the peculiarity that some of the segments 41 ''' (in the 13 the lower three segments) are formed asymmetrically. This embodiment is preferred for luminaires which are intended to produce different light distributions on different sides. For example, it can be provided that on one side of the luminaire, the light is directed more strongly down to illuminate, for example, a mastnahen area under the lamp, while on the other side a wide-beam light distribution is generated.

Numerous modifications of the previously described embodiments may be made within the scope of the invention as defined in the claims. For example, the invention is not on planar circuit carriers 30 , as shown in the figures, limited. It is also possible to use cylindrical or semi-cylindrical or partially cylindrical circuit carriers. Likewise, flexible circuit carriers can be applied to correspondingly cylindrical or partially cylindrical surfaces of the carrier element. It should also be noted that instead of separate circuit carrier 30 the circuit carrier, ie the interconnects with appropriate insulation, also directly on the surfaces of the support element 20 can be trained.

LIST OF REFERENCE NUMBERS

10

structural element

11

angle approach

20

support element

21

surface section

22

groove

27

threaded pin

30

circuit support

31

screw

32

hole

35

LED

40 40 ', 40' ', 40' ''

Light guide elements

41 41 ', 41' ', 41' ''

segment of the light-guiding element

50

control gear

51

power terminal

55

control module

60

cover

80

housing roof

81

mast lights

82

transparent cover

83

Optical assembly base

301

electrical connection

302

electrical bridge

303

LED position

401

reflector surface

402

reflector surface

403

position hole

404

reflector surface

405

locking lug

420 420 ', 420' '

Entblendungselement

421 ', 421' '

string

422 ', 422' '

lenticular elevations

423 ', 423' '

projections

1001

beam of light

1002

beam of light

1003

beam of light

1004

beam of light

Claims (27)

A luminaire insert with a light-guiding element, wherein the luminaire insert comprises: an elongated carrier element ( 20 ), which along its circumference about the longitudinal axis for receiving circuit carriers ( 30 ) for LEDs ( 35 ) or which has surface sections along its circumference about the longitudinal axis, which are themselves at least partially configured as circuit carriers for LEDs, and a multiplicity of LEDs ( 35 ) mounted on at least one of the circuit carriers ( 30 ), and wherein the light-guiding element, which extends around at least a part of the circumference of the carrier element (FIG. 20 ) in front of the circuit carrier ( 30 ), several segments ( 41 . 41 ' . 41 '' . 41 ''' ), each segment ( 41 . 41 ' . 41 '' . 41 ''' ) at least one reflection surface ( 401 . 402 ) and / or a refractive portion associated with each of an LED or a series of LEDs extending across the length of the LEDs. Luminaire insert according to claim 1, wherein the circuit carrier or carriers ( 30 ) define in a cross section perpendicular to the longitudinal axis of the support member a regular n-corner, preferably with five or more corners, or wherein the one or more Circuit carrier define a cylinder or cylinder sections along the longitudinal axis of the carrier element. Luminaire insert according to one of the preceding claims, wherein the carrier element ( 20 ) in a cross section perpendicular to the longitudinal axis defines the shape of a regular n-corner, preferably with five or more corners, or the shape of a cylinder. Luminaire insert according to one of the preceding claims, wherein on one or more of the circuit carrier ( 30 ) electrical components are arranged, in particular sensors for temperature measurement, sensors for luminous intensity measurement and / or electrical components for switching the power supply of the LEDs. Luminaire insert according to one of the preceding claims, wherein the LEDs on the at least one circuit carrier ( 30 ) are arranged in one or more columns extending in the longitudinal direction of the carrier element ( 20 ). Luminaire insert according to one of the preceding claims, wherein at least some of the LEDs in rows transversely to the longitudinal axis of the carrier element on the circuit carrier ( 30 ) are arranged. Luminaire insert according to claim 6 with reference back to claim 5, wherein at least some of the LEDs on a circuit carrier unevenly on the rows and columns of the circuit substrate ( 30 ) are distributed. Luminaire insert according to one of the preceding claims, wherein individual LEDs or groups of LEDs separated from each other electrically are connected and individually controllable. Luminaire insert according to one of the preceding claims, wherein the carrier element ( 20 ) has an outer profile in a cross section perpendicular to its longitudinal axis, which in cross section of the arrangement of the circuit carrier ( 30 ), in particular, the carrier element and the circuit carrier in cross section in each case in the form of an n-corner. Luminaire insert according to one of the preceding claims, wherein the carrier element ( 20 ) is hollow inside. Luminaire insert according to one of the preceding claims, wherein the carrier element ( 20 ) are made of aluminum or an aluminum alloy. Luminaire insert according to one of the preceding claims, comprising a control module ( 55 ) which individually controls individual LEDs or groups of LEDs. Luminaire insert according to one of the preceding claims, wherein the light-guiding element ( 40 . 40 ' . 40 '' . 40 ''' ) around the entire circumference of the carrier element ( 20 ). Luminaire insert according to one of the preceding claims, wherein the light-guiding element ( 40 . 40 ' . 40 '' . 40 ''' ) several repeating segments ( 41 . 41 ' . 41 '' . 41 ''' ), in particular a stacking of segments ( 41 ) in the direction of the longitudinal axis of the carrier element ( 20 ). Luminaire insert according to one of the preceding claims, wherein the light-guiding element defines compartments, each having at least two reflector surfaces ( 401 . 402 ) which are inclined with respect to the longitudinal axis of the carrier element. Luminaire insert according to one of the preceding claims, wherein the segments ( 41 ) at least two reflector surfaces ( 401 . 402 ). Luminaire insert according to claim 17, wherein the segments ( 41 ) in the longitudinal direction of the carrier element in each case have the height of one or more compartments. Luminaire insert according to one of the preceding claims, wherein the segments ( 41 . 41 ' . 41 '' . 41 ''' ) are connectable to each other by connectors. Luminaire insert according to one of the preceding claims, wherein at least some of the segments ( 41 . 41 ' . 41 '' . 41 ''' ) of the light-guiding element ( 40 . 40 ' . 40 '' . 40 ''' ) have an identical shape. Luminaire insert according to one of the preceding claims, wherein a segment 1 / n-tel the circumference of the carrier element encloses where n is a natural one Number, in particular 2, 3, 4, 5 or 6 is. Luminaire insert according to one of the preceding claims, wherein Parts of the light-guiding element by means of a support structure with each other connected, in particular, from a transparent, opal or material provided with light scattering elements is formed. Luminaire insert according to one of the preceding claims, wherein the LEDs ( 35 ) on the circuit carriers ( 30 ) are distributed such or are controllable, so that the light emission of the lamp insert in a plane perpendicular to the longitudinal axis of the support element substantially in two directions, in particular symmetrical, takes place. Luminaire insert according to claim 22, wherein the two Directions in the plane an angle between about 90 ° to about 180 °, in particular about 100 ° to enclose about 160 °. Luminaire according to one of the preceding claims, wherein the LEDs on the circuit carriers ( 30 ) are distributed or controllable such that the light distribution generated by the lamp insert in a plane perpendicular to the longitudinal axis of the light carrier ( 20 ) is approximately isotropic. Luminaire insert according to one of the preceding claims, wherein the circuit carrier are occupied by LEDs of different colors. Luminaire insert according to one of the preceding claims, wherein individual LEDs or groups of LEDs individually switched on or off and / or dimmable. Luminaire insert according to one of the preceding claims, wherein between two opposite reflector surfaces ( 401 . 402 ) of the light-guiding element is a light-scattering or refractive element ( 420 . 420 ' . 420 '' ) is arranged.

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