EP2307789B1 - Lighting device with led - Google Patents

Lighting device with led Download PDF

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Publication number
EP2307789B1
EP2307789B1 EP09775575.5A EP09775575A EP2307789B1 EP 2307789 B1 EP2307789 B1 EP 2307789B1 EP 09775575 A EP09775575 A EP 09775575A EP 2307789 B1 EP2307789 B1 EP 2307789B1
Authority
EP
European Patent Office
Prior art keywords
light
carrier element
lighting device
led
carrier
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Not-in-force
Application number
EP09775575.5A
Other languages
German (de)
French (fr)
Other versions
EP2307789A1 (en
Inventor
Douglas Pappis
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Tridonic GmbH and Co KG
Original Assignee
Tridonic GmbH and Co KG
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Tridonic GmbH and Co KG filed Critical Tridonic GmbH and Co KG
Publication of EP2307789A1 publication Critical patent/EP2307789A1/en
Application granted granted Critical
Publication of EP2307789B1 publication Critical patent/EP2307789B1/en
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21K—NON-ELECTRIC LIGHT SOURCES USING LUMINESCENCE; LIGHT SOURCES USING ELECTROCHEMILUMINESCENCE; LIGHT SOURCES USING CHARGES OF COMBUSTIBLE MATERIAL; LIGHT SOURCES USING SEMICONDUCTOR DEVICES AS LIGHT-GENERATING ELEMENTS; LIGHT SOURCES NOT OTHERWISE PROVIDED FOR
    • F21K9/00—Light sources using semiconductor devices as light-generating elements, e.g. using light-emitting diodes [LED] or lasers
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • F21S8/00—Lighting devices intended for fixed installation
    • F21S8/02—Lighting devices intended for fixed installation of recess-mounted type, e.g. downlighters
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • F21S8/00—Lighting devices intended for fixed installation
    • F21S8/02—Lighting devices intended for fixed installation of recess-mounted type, e.g. downlighters
    • F21S8/026—Lighting devices intended for fixed installation of recess-mounted type, e.g. downlighters intended to be recessed in a ceiling or like overhead structure, e.g. suspended ceiling
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • F21S8/00—Lighting devices intended for fixed installation
    • F21S8/04—Lighting devices intended for fixed installation intended only for mounting on a ceiling or the like overhead structures
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V29/00—Protecting lighting devices from thermal damage; Cooling or heating arrangements specially adapted for lighting devices or systems
    • F21V29/50—Cooling arrangements
    • F21V29/502—Cooling arrangements characterised by the adaptation for cooling of specific components
    • F21V29/505—Cooling arrangements characterised by the adaptation for cooling of specific components of reflectors
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V29/00—Protecting lighting devices from thermal damage; Cooling or heating arrangements specially adapted for lighting devices or systems
    • F21V29/50—Cooling arrangements
    • F21V29/70—Cooling arrangements characterised by passive heat-dissipating elements, e.g. heat-sinks
    • F21V29/74—Cooling arrangements characterised by passive heat-dissipating elements, e.g. heat-sinks with fins or blades
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V29/00—Protecting lighting devices from thermal damage; Cooling or heating arrangements specially adapted for lighting devices or systems
    • F21V29/50—Cooling arrangements
    • F21V29/70—Cooling arrangements characterised by passive heat-dissipating elements, e.g. heat-sinks
    • F21V29/74—Cooling arrangements characterised by passive heat-dissipating elements, e.g. heat-sinks with fins or blades
    • F21V29/75—Cooling arrangements characterised by passive heat-dissipating elements, e.g. heat-sinks with fins or blades with fins or blades having different shapes, thicknesses or spacing
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • F21S9/00—Lighting devices with a built-in power supply; Systems employing lighting devices with a built-in power supply
    • F21S9/02—Lighting devices with a built-in power supply; Systems employing lighting devices with a built-in power supply the power supply being a battery or accumulator
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • F21S9/00—Lighting devices with a built-in power supply; Systems employing lighting devices with a built-in power supply
    • F21S9/02—Lighting devices with a built-in power supply; Systems employing lighting devices with a built-in power supply the power supply being a battery or accumulator
    • F21S9/022—Emergency lighting devices
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V17/00—Fastening of component parts of lighting devices, e.g. shades, globes, refractors, reflectors, filters, screens, grids or protective cages
    • F21V17/10—Fastening of component parts of lighting devices, e.g. shades, globes, refractors, reflectors, filters, screens, grids or protective cages characterised by specific fastening means or way of fastening
    • F21V17/107—Fastening of component parts of lighting devices, e.g. shades, globes, refractors, reflectors, filters, screens, grids or protective cages characterised by specific fastening means or way of fastening using hinge joints
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V17/00—Fastening of component parts of lighting devices, e.g. shades, globes, refractors, reflectors, filters, screens, grids or protective cages
    • F21V17/10—Fastening of component parts of lighting devices, e.g. shades, globes, refractors, reflectors, filters, screens, grids or protective cages characterised by specific fastening means or way of fastening
    • F21V17/14—Bayonet-type fastening
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V17/00—Fastening of component parts of lighting devices, e.g. shades, globes, refractors, reflectors, filters, screens, grids or protective cages
    • F21V17/10—Fastening of component parts of lighting devices, e.g. shades, globes, refractors, reflectors, filters, screens, grids or protective cages characterised by specific fastening means or way of fastening
    • F21V17/16—Fastening of component parts of lighting devices, e.g. shades, globes, refractors, reflectors, filters, screens, grids or protective cages characterised by specific fastening means or way of fastening by deformation of parts; Snap action mounting
    • F21V17/164—Fastening of component parts of lighting devices, e.g. shades, globes, refractors, reflectors, filters, screens, grids or protective cages characterised by specific fastening means or way of fastening by deformation of parts; Snap action mounting the parts being subjected to bending, e.g. snap joints
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V21/00—Supporting, suspending, or attaching arrangements for lighting devices; Hand grips
    • F21V21/02—Wall, ceiling, or floor bases; Fixing pendants or arms to the bases
    • F21V21/03—Ceiling bases, e.g. ceiling roses
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V23/00—Arrangement of electric circuit elements in or on lighting devices
    • F21V23/04—Arrangement of electric circuit elements in or on lighting devices the elements being switches
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V23/00—Arrangement of electric circuit elements in or on lighting devices
    • F21V23/04—Arrangement of electric circuit elements in or on lighting devices the elements being switches
    • F21V23/0435—Arrangement of electric circuit elements in or on lighting devices the elements being switches activated by remote control means
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V7/00—Reflectors for light sources
    • F21V7/0083—Array of reflectors for a cluster of light sources, e.g. arrangement of multiple light sources in one plane
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V7/00—Reflectors for light sources
    • F21V7/04—Optical design
    • F21V7/045—Optical design with spherical surface
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V7/00—Reflectors for light sources
    • F21V7/04—Optical design
    • F21V7/06—Optical design with parabolic curvature
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO THE FORM OR THE KIND OF THE LIGHT SOURCES OR OF THE COLOUR OF THE LIGHT EMITTED
    • F21Y2107/00—Light sources with three-dimensionally disposed light-generating elements
    • F21Y2107/40—Light sources with three-dimensionally disposed light-generating elements on the sides of polyhedrons, e.g. cubes or pyramids
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO THE FORM OR THE KIND OF THE LIGHT SOURCES OR OF THE COLOUR OF THE LIGHT EMITTED
    • F21Y2113/00—Combination of light sources
    • F21Y2113/10—Combination of light sources of different colours
    • F21Y2113/13—Combination of light sources of different colours comprising an assembly of point-like light sources
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO THE FORM OR THE KIND OF THE LIGHT SOURCES OR OF THE COLOUR OF THE LIGHT EMITTED
    • F21Y2115/00—Light-generating elements of semiconductor light sources
    • F21Y2115/10—Light-emitting diodes [LED]

Definitions

  • the invention relates to a light emitting diode with light-emitting diodes according to the preamble of patent claim 1.
  • Such lamps are used in lighting systems to achieve a flat lighting of rooms, paths or escape routes. Usually, the bulbs are driven by operating devices and activated as needed. For such lighting gas discharge lamps or light emitting diodes (LED) are used as the light source.
  • LED light emitting diodes
  • light-emitting diodes are also increasingly being used as the light source.
  • the efficiency and luminous efficacy of light-emitting diodes is being increased more and more, so that they are already being used in various general lighting applications.
  • light emitting diodes are point sources of light and emit highly concentrated light. In general lighting, for example, in offices or even with path lighting or the lighting of staircases, however, the user requires the widest possible and uniform illumination.
  • secondary optics i. a lens or diffuser, which is mounted over one or more light-emitting diodes, to achieve the widest possible light emission.
  • such secondary optics has the drawback that part of the light emission of the light emitting diode is not transmitted as light, but is either absorbed or reflected by the secondary optics.
  • this secondary optics has an influence on the thermal management, since the heat radiation is hindered.
  • yellowing or soiling of the secondary optics may occur due to aging and heat.
  • US 2004/0120152 discloses a luminous means according to the preamble of claim 1.
  • the solution according to the invention for a luminous means with light-emitting diodes is based on the idea that the light-emitting diodes are arranged on a carrier element and that the carrier element is designed as a polygon in which at least two side surfaces converge and the light-emitting diodes are arranged on the side surfaces of the carrier element.
  • the two light emitting diodes 1 and 2 the two light sources of the illuminant A.
  • the two light-emitting diodes 1 and 2 arranged a carrier element 5 in such a way that the carrier element 5 is formed as a polygon, converge in which at least two side surfaces and the light-emitting diodes 1 and 2 are arranged on the side surfaces of the carrier element 5.
  • the light-emitting diodes 1 and 2 are advantageously arranged in the middle of a side surface of the carrier element 5.
  • the carrier element 5 is wedge-shaped.
  • the support member 5 further has a polygonal base. The support member 5 can be extended in the direction from which no light is emitted in the shape of the base.
  • Fig. 2 the lateral view of the support element 5 is shown.
  • Radiation achieved in two main directions By adjusting the angle of attack of the two converging side surfaces to each other, the radiation directions of the two LEDs 1 and 2 can be adjusted.
  • Fig. 3 the plan view of the support element 5 is shown.
  • Fig. 4 the plan view of the support element 5 is shown.
  • the light emitting diodes 1 and 2 By attaching the light emitting diodes 1 and 2 on the converging side surfaces radiation in two main directions is achieved. It forms the two beams 7 and 8, which can illuminate a long corridor.
  • a very uniform and large-scale lighting can be achieved without a secondary optics is used.
  • escape route lighting it is important to illuminate a long, but not very wide rescue corridor.
  • the light source A with the two light-emitting diodes 1 and 2 on the converging side surfaces of the wedge-shaped support element 5 is very well suited.
  • the light-emitting diodes 1 and 2 are applied to the carrier element 5 in surface mount technology (SMT) or chip-on-board technology (COB).
  • SMT surface mount technology
  • COB chip-on-board
  • a very good thermal coupling of the LED to the carrier element 5 can be achieved
  • the chip-on-board (COB) technology enables a very close assembly of light-emitting diodes , whereby a very homogeneous light distribution can be achieved when placing groups of light emitting diodes.
  • the LEDs 1 and 2 consist of an LED semiconductor chip, which is covered by a potting compound.
  • This lenticular potting compound which is advantageously very transparent, on the one hand protects the LED semiconductor chips and on the other hand acts as a lens in order to align the light radiation emitted by the LED semiconductor chips and to couple them out optimally.
  • This potting compound lens is generally referred to as the primary optic of the light emitting diode.
  • the potting compound has a lens effect and may also contain a color conversion substance. By the color conversion material, for example, the light of a blue LED semiconductor chip can be converted into white light.
  • the light-emitting diodes 1 and 2 can be fastened directly on the carrier element 5 or else by a contact element on the carrier element 5.
  • the contact element can be designed, for example, as a double-sided adhesive tape, which advantageously has a high thermal conductivity, and be fastened to the carrier element 5.
  • the carrier element 5 advantageously has a high thermal conductivity in order to effectively dissipate the heat generated by the light-emitting diodes 1 and 2 and to keep the temperature of the LED semiconductor chips as low as possible.
  • the support member 5 may be at least partially formed a reflective surface in order to achieve a better Lichtauskoppelung by the light emitting diodes 1 and 2.
  • the carrier element 5 may consist of a ceramic substrate, of a synthetic resin material, of glass or of silicon substrate.
  • the carrier element 5 may consist of a ceramic substrate.
  • the ceramic substrate can be realized as LTCC structure (Low Temperature Cofired Ceramic).
  • LTCC structure Low Temperature Cofired Ceramic
  • the part of the control electronics 36 may be, for example, the driver circuit or a part thereof, an interface circuit for an interface or also a sensor, such as a temperature, brightness or color sensor, for monitoring the light emitting diodes 1 and 2.
  • a sensor such as a temperature, brightness or color sensor
  • the leads for the light-emitting diodes 1 and 2 are integrated into the carrier element 5.
  • the electrical leads for the LEDs 1 and 2 may also be applied to the carrier element 5.
  • FIG. 5 is the perspective view in which the support member 5 is formed such that three side surfaces taper toward each other and at least one light emitting diode 1, 2 and 3 is arranged on each of the side surfaces of the support element 5.
  • Fig. 6 shows the side view of the carrier element 5 with the attached to a side surface LED 3.
  • Fig. 7 is the top view of the carrier element 5 with the ever attached to a side surface LEDs 1, 2 and 3 shown.
  • Fig. 8 is the top view of the carrier element 5 with the light-emitting diodes 1, 2 and 3 each attached to a side surface and the light distribution shown in this embodiment.
  • the three light cones 7, 8 and 9 are formed, which can illuminate a triangular surface. The arrangement shown, however, can not uniformly illuminate a square area.
  • Fig. 9 is the perspective view in which the support member 5 is formed such that four side surfaces converge in a pyramidal structure and on each of the side surfaces of the support member 5 at least one light emitting diode 1, 2, 3 and 4 is arranged.
  • the carrier element 5 is designed as a square pyramid, but other pyramid structures with a base area with more than four corners are also feasible.
  • Fig. 10 shows the side view of the support member 5 with the attached to a side surface of light emitting diode. 1
  • Fig. 11 is the top view of the carrier element 5 with the light-emitting diodes 1, 2, 3 and 4 each attached to a side surface shown.
  • Fig. 12 is the top view of the support member 5 with the light-emitting diodes 1, 2, 3 and 4 each attached to a side surface and the light distribution shown in this embodiment.
  • the four light cones 7, 8, 9 and 10 are formed, which can illuminate a quadrangular surface.
  • a square surface 12 are illuminated uniformly. This arrangement gives the user the opportunity to achieve a very wide-area and uniform illumination by appropriate positioning of the illuminant A. Due to the resulting square surface 12, a defined surface can be selectively illuminated and illuminated by appropriate positioning of several bulbs A at regular intervals to each other a predetermined area such as an office or a sales room evenly and energy efficient.
  • FIGS. 13 to 15 another embodiment is shown.
  • the support member 5 may be surrounded by a reflector 6.
  • the reflector is formed by a plurality of surfaces joined to one another, which run away from the side surfaces of the carrier element 5.
  • a reflector in the form of a truncated pyramid is suitable for a pyramidal carrier element 5.
  • Fig. 14 shows the side view of the support member 5 with the LED attached to a side surface 1 and the reflector. 6
  • Fig. 15 is the top view of the support member 5 with the ever attached to a side surface LEDs 1, 2, 3 and 4 and the reflector 6 shown.
  • a light source A can also be equipped with a plurality of carrier elements 5, which are positioned in a predetermined arrangement relative to one another and each have at least two converging side surfaces on which the light emitting diodes 1 and 2 are arranged.
  • the arrangement of the support elements 5 on the light source A can be done for example in a rectangular, circular or triangular arrangement or in a matrix arrangement.
  • a lighting system comprising a plurality of lamps A can be constructed.
  • the lamps A can be positioned in a predetermined arrangement to each other.
  • a defined illumination by the lighting means can be achieved.
  • the arrangement of the support elements 5 on the light source A can be done for example in a rectangular, circular or triangular arrangement or in a matrix arrangement.
  • the light source A can be mounted directly in the ceiling 11 either by means of the support member 5 on the ceiling 11 or in an embodiment with a reflector 6 as a recessed light either in an embodiment without a reflector 6.
  • a reflector 6 as a recessed light either in an embodiment without a reflector 6.
  • the ends of the outer sides of the reflector 6 may be connected directly to the ceiling 11.
  • the lamp A can be sunk in the ceiling 11 and thus can be integrated into the ceiling structure.
  • Fig. 17 shows a perspective view of a support member 5 according to an embodiment of the invention.
  • Fig. 18 shows a frontal view of a support element. 5
  • the carrier element 5 consists in this embodiment of a heat sink 15 and at least one LED carrier 16.
  • the LED carrier 16 may be formed by individual circuit boards, which are each placed on a side surface of the heat sink 15.
  • the LED carrier 16 may also be formed as a prefabricated one-piece LED carrier having a polyhedron shape (for example, a pyramidal shape) and can be placed on the heat sink 15.
  • an LED support 16 can be placed on each side surface of the heat sink 15. At least one light-emitting diode 1 or 2 and the electrical supply line 17 for electrical contacting of the light-emitting diode 1 or 2 is respectively applied to the LED carrier 16.
  • the electrical lead 17 may be located on the top or bottom of the LED carrier 16 or within the LED carrier 16. When the electrical lead 17 is within the LED carrier 16, it may, for example, in a multilayer design of the LED carrier 16 in an inner layer of the LED carrier 16 are located.
  • the LED carrier 16 with the electrical supply line 17 and the ventilation openings 19 at its side Edges, but without populated LEDs, is in Fig. 20 shown.
  • light-emitting diodes which can be equipped with surface mount technology (SMT) are suitable for equipping a prefabricated LED carrier 16, which is already supplied with the electrical supply line 17.
  • SMT surface mount technology
  • the LED carrier 16 may for example consist of a synthetic resin material (FR4 or CEM1) or also of a ceramic substrate as LTCC structure.
  • the heat sink 15 is advantageously made of a thermally highly conductive material and may also be mechanically stable.
  • the heat sink 15 may consist of a ceramic substrate.
  • the heat sink 15 has one or more depressions 18. These recesses 18 allow a better cooling of the carrier element 5, since they form channels through which air can flow and thus improve the heat dissipation.
  • the recesses 18 extend transversely through the heat sink 15, advantageously parallel to an outer edge of the heat sink 15.
  • the heat sink 15 is formed such that it consists of a plurality of juxtaposed fins. A possible embodiment of the heat sink 15 is shown in FIG Fig. 19 shown.
  • the recesses 18 of the heat sink 15 may be arranged such that they form channels that use a kind of chimney effect, so that 19 can form a draft for cooling via appropriately arranged ventilation openings.
  • the depressions 18 can also be seen from the direction of the lower edge of the heat sink 15 in FIG Direction of the upper end of the heat sink 15 so that the heat sink on the heat sink 15 and the LED support 16 (and thus by the light emitting diodes 1, 2) heated air and can escape through the upper vent openings 19, while over at the lower edge of the LED carrier 16 and the support member 5 existing ventilation openings 19 may enter cooler air. This air can thus be sucked by the chimney effect so to speak.
  • the heat sink 15 may comprise holding means for fixing the LED carrier or carriers 16.
  • cooling devices such as a heat pipe, a Peltier element or a fan.
  • the LED carrier 16 advantageously has ventilation openings 19 at its lateral edges.
  • the ventilation openings 19 allow an air flow below the LED carrier 16 through the recesses 18 of the heat sink 15.
  • the ventilation openings 19 are arranged so that they are respectively above the recesses 18 of the heat sink 15 and thus allow optimal heat dissipation.
  • the carrier element 5 can also be formed only by LED carrier 16, wherein a heat sink 15 is dispensed with.
  • the LED carrier 16 itself have means for heat dissipation.
  • it can have plated-through holes or integrated heat conducting layers.
  • the heat conducting layers can, for example be formed in a multilayer design of the LED carrier 16 by using a metal layer.
  • the metal layer may be formed, for example, by a layer within the LED carrier 16 or by the lowermost or uppermost layer of the LED carrier 16.
  • the carrier element 5 can be placed on a base module 20, as shown in FIG Fig. 21 is shown.
  • the base module 20 may include a portion of the drive electronics 36 for the light emitting diodes 1,2.
  • a battery 38 may be housed in the base module 20.
  • the attachment of the lamp A on a ceiling or on a lamp by fastening means, which has the base module 20, can be ensured.
  • the support member 5 may be detachably mounted on the base module 20. It can be connected to the base module 20, for example, by a screw connection, a plug connection with barbs or else by a bayonet closure. Thus, it is possible, for example, different carrier elements 5 (with different numbers of side surfaces or light-emitting diodes) to be combined with different base modules 20 as in a modular system.
  • a reflector 6 can be placed, as shown in Fig. 22 is shown.
  • FIG. 23, 23a . 24 and 25 Further views of the bulb A with the base module. 20 and a reflector 6 are in the Fig. 23, 23a . 24 and 25 shown.
  • a reflector 6 can be placed on the support member 5 and this surrounded.
  • the reflector 6 may have openings for the light-emitting diodes 1 and 2.
  • the reflector 6 has recesses 23. These recesses 23 are used for improved light control and focus the light in a predetermined, emission direction.
  • the formation of the light cone 7 and 8 can be improved and, for example, the radiation angle can be set.
  • the recesses 23 are formed semicircular or parabolic.
  • the light-emitting diode 1 is arranged in the middle of the recess 23 or at least in the vicinity of the center.
  • the light-emitting diode 1 can also be located in or near the focal point of the semicircular or parabolic recess 23, so that a large part of the light emitted from the light emitting diode 1 radiated light is concentrated in a cone of light 7.
  • a section of the luminous means A with the base module 20 and a reflector 6 is in Fig. 26 shown. There, the recess 23 are shown with the light-emitting diode 1 arranged in the recess 23 and the light cone 7 produced.
  • the reflector 6 may additionally have a status LED 24, which is controlled by the integrated control electronics 36 and can emit a signal in the event of a fault or for maintenance purposes.
  • the status LED 24 may also output other information such as the address of the illuminant A.
  • the status LED 24 can be a two-color LED are formed and thus spend different colors. The different colors can signal different states, feedbacks or even errors.
  • the status LED 24 can also be arranged on the carrier element 5 and the reflector 6 can have an opening through which the status LED 24 protrudes or is visible through it. In an advantageous embodiment, the status LED 24 is arranged so that it is located at the top of the reflector 6 and at the top of the support element 5.
  • the status LED 24 can also be attached to another location of the luminous means A, for example in or on the base module 20.
  • the base module 20 may, for example, have the shape of a truncated pyramid and thus form an optical extension of the carrier element 5.
  • the base module 20 can also have a round cross-section and, for example, have the shape of a truncated cone and thus form an optical extension of the carrier element 5 with the reflector 6 attached, as in FIG Fig. 25 shown.
  • the base module 20 may for example consist of a plastic material or of a metallic material, which is preferably painted.
  • the base module 20 may be connected to a bottom plate 21.
  • Fig. 27 and Fig. 28 is a bottom view of the bottom plate 21, which can be inserted into the base module 20 shown.
  • Fig. 29 and 30 is a view of the bulb A shown in cross section.
  • the base module 20 with the bottom plate 21 used may contain part of the control electronics 36 for the light-emitting diodes 1, 2. Also, a battery 38 may be housed in the base module 20. In addition, the attachment of the illuminant A on a ceiling or on a lamp by means of the bottom plate 21 by fastening means such as mounting holes 28 can be ensured.
  • the bottom plate 21 may further include a cable passage 26.
  • the control electronics 36 may be located on a circuit board 46.
  • the board 46 may be attached either directly to the bottom plate 21 or the base module 20 or to a support plate 44.
  • the support plate 44 may be located within the base module 20 and the bottom plate 21, respectively.
  • the battery 38 may be secured to the support plate 44 via a releasable connection, such as a clamped connection 42, which may fix the battery 38 at one or more locations.
  • the control electronics 36 may comprise contacting means 34, which are arranged for example on the board 46 or the holding plate 44.
  • the bottom plate 21 may be detachably connected to the base module 20. It can be connected to the base module 20, for example, by a screw connection, a plug connection with barbs or else by a bayonet closure. A connection is also possible by connecting the bottom plate at one location to base module 20 via a pivot mechanism 30 such as a hinge, and additionally connecting it at a second location via another fixture. This further holder can be realized for example by a holder with barbs 32. Thus, it is possible to at least partially detach base plate 21 from base module 20, for example, to swap the contained battery 38, to change the wiring or contacting, or to have access to control electronics 36.
  • the battery 38 which is arranged within the base module 20, can serve to supply the light-emitting diodes 1, 2.
  • the supply of light emitting diodes 1,2 can be powered by the control electronics 36 from the battery 38.
  • the control electronics 36 may be controllable via an interface.
  • the control electronics 36 may include an interface circuit.
  • the interface may be suitable for wired or wireless communication.
  • the light source A and its control electronics 36 can be controlled via a DALI bus or another wired digital bus.
  • the light source A and its control electronics 36 via a wireless Communication such as a wireless connection or an infrared connection are controlled.
  • brightness, maintenance or status commands to and / or from the illuminant A can be sent via the interface.
  • a sensor such as a temperature, brightness or color sensor, part of the control electronics 36, and information from the sensor can be transmitted via the interface.
  • the brightness and / or the color reproduction of the LEDs 1, 2 can be adjusted and regulated. If the illuminant A has an interface, it is possible to control this brightness and / or the color rendering of the light-emitting diodes 1, 2.
  • control electronics 36 is arranged on the board 46 in the illuminant A such that it lies in a parallel plane to the underside of the carrier element 5.
  • the illuminant A may also have instead of or in addition to the bottom plate 21 via a screw or socket, via which the illuminant A can be inserted into a socket for lamps.
  • This socket for lamps for example, be a socket for incandescent (eg E27), for halogen lamps or fluorescent lamps. If the bulb A via a screw or Plug-in base, it can be installed and replaced by a user without intervention in the wiring, without an electrician must perform this work.
  • a lighting system comprising a plurality of lamps A can be constructed.
  • the lamps A can be positioned in a predetermined arrangement to each other.
  • a defined illumination by the lighting means can be achieved.
  • the arrangement of the support elements 5 on the light source A can be done for example in a rectangular, circular or triangular arrangement or in a matrix arrangement. Since the carrier elements 5 are detachable from the base module 20 in a preferred embodiment, different forms of carrier elements 5 can also be combined within a lighting system, depending on the respective illumination requirement of the respective part of the room.
  • a light source A with two light emitting diodes 1 and 2 are applied to the converging side surfaces of the wedge-shaped support element 5, while for the uniform illumination of a square surface 12 (such as an office space or a sales room), a support member 5 with four LEDs 1, 2, 3 and 4 can be used.
  • a carrier element 5 with four side surfaces a uniform and large-area illumination of a square surface is possible, as already mentioned.
  • a carrier element 5 with three side surfaces can also be used well here.
  • an emergency lighting such as escape route lighting or emergency lighting can be realized.
  • This illuminant A can already contain the required contacting means 34, a control electronics 36 and also optionally a battery 38 and at the same time enables a very good luminous efficacy and distribution with the most compact possible design.
  • Such lamps A in a lighting system can be networked with each other via their interface and in addition to the information sent by the user, transmitted to each other information, for example, the partially contained sensors and replace ..

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Description

Die Erfindung betrifft ein Leuchtmittel mit Leuchtdioden gemäß dem Oberbegriff des Patentanspruchs 1.The invention relates to a light emitting diode with light-emitting diodes according to the preamble of patent claim 1.

Technisches GebietTechnical area

Derartige Leuchtmittel werden in Beleuchtungssystemen verwendet, um eine flächige Beleuchtung von Räumen, Wegen oder auch Fluchtwegen zu erreichen. Üblicherweise werden dabei die Leuchtmittel von Betriebsgeräten angesteuert und bei Bedarf aktiviert. Für eine derartige Beleuchtung werden Gasentladungslampen oder auch Leuchtdioden (LED) als Lichtquelle genutzt.Such lamps are used in lighting systems to achieve a flat lighting of rooms, paths or escape routes. Usually, the bulbs are driven by operating devices and activated as needed. For such lighting gas discharge lamps or light emitting diodes (LED) are used as the light source.

Stand der TechnikState of the art

Zur Beleuchtung werden anstelle von Gasentladungslampen und Glühlampen immer häufiger auch Leuchtdioden als Lichtquelle eingesetzt. Die Effizient und Lichtausbeute von Leuchtdioden wird immer stärker erhöht, so dass sie bei verschiedenen Anwendungen der Allgemeinbeleuchtung bereits zum Einsatz kommen. Allerdings sind Leuchtdioden Punktlichtquellen und strahlen stark gebündeltes Licht aus. In der Allgemeinbeleuchtung, beispielsweise von Büroräumen oder auch bei Wegbeleuchtungen oder der Beleuchtung von Treppenhäusern, wird vom Anwender jedoch eine möglichst flächige und gleichmäßige Beleuchtung gefordert.For lighting, instead of gas discharge lamps and incandescent lamps, light-emitting diodes are also increasingly being used as the light source. The efficiency and luminous efficacy of light-emitting diodes is being increased more and more, so that they are already being used in various general lighting applications. However, light emitting diodes are point sources of light and emit highly concentrated light. In general lighting, for example, in offices or even with path lighting or the lighting of staircases, however, the user requires the widest possible and uniform illumination.

Heutige Leuchtmittel mit Leuchtdioden als Lichtquelle versuchen daher mit Hilfe einer sogenannten Sekundäroptik, d.h. einer Linse oder Streuscheibe, die über einer oder mehreren Leuchtdioden angebracht ist, eine möglichst großflächige Lichtabstrahlung zu erzielen.Today's light sources with light emitting diodes as the light source therefore try by means of a so-called secondary optics, i. a lens or diffuser, which is mounted over one or more light-emitting diodes, to achieve the widest possible light emission.

Eine solche Sekundäroptik bringt jedoch den Nachteil, dass ein Teil der Lichtabstrahlung derLeuchtdiode nicht als Licht hindurchgelassen wird, sondern entweder von der Sekundäroptik absorbiert oder reflektiert wird. Zudem hat diese Sekundäroptik einen Einfluss auf das Thermomanagement, da die Wärmeabstrahlung behindert wird. Zudem kann es aufgrund von Alterung und Wärmeeinwirkung zu einem Vergilben oder Verschmutzen der Sekundäroptik kommen.However, such secondary optics has the drawback that part of the light emission of the light emitting diode is not transmitted as light, but is either absorbed or reflected by the secondary optics. In addition, this secondary optics has an influence on the thermal management, since the heat radiation is hindered. In addition, yellowing or soiling of the secondary optics may occur due to aging and heat.

In Bereichen wie der Notbeleuchtung wie beispielsweise der Fluchtwegbeleuchtung ist es jedoch erforderlich, eine möglichst energieeffiziente Beleuchtung zu erreichen, wobei die geforderte maximale Helligkeit der Beleuchtung zweitrangig ist.In areas such as emergency lighting such as escape route lighting, however, it is necessary to achieve the most energy-efficient lighting possible, with the required maximum brightness of the lighting being of secondary importance.

US 2004/0120152 offenbart ein Leuchtmittel gemäß dem Oberbegriff des Anspruchs 1. US 2004/0120152 discloses a luminous means according to the preamble of claim 1.

Darstellung der ErfindungPresentation of the invention

Es ist die Aufgabe der Erfindung, ein Leuchtmittel bereitzustellen, welches das gleichmäßige Ausleuchten einer Fläche durch ein Leuchtmittel mit Leuchtdioden ohne die oben genannten Nachteile bzw. unter einer deutlichen Reduzierung dieser Nachteile ermöglicht.It is the object of the invention to provide a luminous means which enables the uniform illumination of a surface by a luminous means with light-emitting diodes without the disadvantages mentioned above or with a clear reduction of these disadvantages.

Diese Aufgabe wird für eine gattungsgemäße Vorrichtung erfindungsgemäß durch die kennzeichnenden Merkmale des Patentanspruchs 1 gelöst. Besonders vorteilhafte Ausführungen der Erfindung sind in den Unteransprüchen beschrieben.This object is achieved according to the invention for a generic device by the characterizing features of patent claim 1 solved. Particularly advantageous embodiments of the invention are described in the subclaims.

Die erfindungsgemäße Lösung für ein Leuchtmittel mit Leuchtdioden beruht auf dem Gedanken, dass die Leuchtdioden auf einem Trägerelement angeordnet sind und dass das Trägerelement als Vieleck ausgebildet ist, bei dem zumindest zwei Seitenflächen zusammenlaufen und die Leuchtdioden auf den Seitenflächen des Trägerelementes angeordnet sind.The solution according to the invention for a luminous means with light-emitting diodes is based on the idea that the light-emitting diodes are arranged on a carrier element and that the carrier element is designed as a polygon in which at least two side surfaces converge and the light-emitting diodes are arranged on the side surfaces of the carrier element.

Auf diese Weise.ist es möglich, eine sehr gleichmäßige Ausleuchtung einer Fläche durch ein Leuchtmittel mit Leuchtdioden zu erreichen.In this way, it is possible to achieve a very uniform illumination of a surface by a light emitting diode with light emitting diodes.

Vorteilhafte Ausgestaltungen und Weiterbildungen der Erfindung sind durch die Unteransprüche beschrieben.Advantageous embodiments and further developments of the invention are described by the subclaims.

Beschreibung der bevorzugten AusführungsbeispieleDescription of the preferred embodiments

Nachfolgend soll die Erfindung anhand der beigefügten Zeichnung näher erläutert werden. Es zeigen:

  • Fig. 1 bis Fig. 4 zeigen eine erste Ausgestaltung eines nicht beanspruchten Leuchtmittels
  • Fig. 5 bis Fig. 8 zeigen eine zweite Ausgestaltung eines nicht beanspruchten Leuchtmittels
  • Fig. 9 bis Fig. 12 zeigen eine dritte Ausgestaltung eines erfindungsgemäßen Leuchtmittels
  • Fig. 13 bis Fig. 16 zeigen eine vierte Ausgestaltung eines erfindungsgemäßen Leuchtmittels
  • Fig. 17 bis Fig. 19 zeigen eine Ausgestaltung eines Teils des erfindungsgemäßen Leuchtmittels
  • Fig. 20 bis Fig. 30 zeigen eine weitere Ausgestaltung eines nicht beanspruchten Leuchtmittels
The invention will be explained in more detail with reference to the accompanying drawings. Show it:
  • Fig. 1 to Fig. 4 show a first embodiment of an unclaimed light source
  • Fig. 5 to Fig. 8 show a second embodiment of an unclaimed light source
  • FIG. 9 to FIG. 12 show a third embodiment of a luminous means according to the invention
  • FIGS. 13 to 16 show a fourth embodiment of a luminous means according to the invention
  • Fig. 17 to Fig. 19 show an embodiment of a part of the luminous means according to the invention
  • FIGS. 20 to 30 show a further embodiment of an unclaimed light source

Nachfolgend wird die Erfindung anhand eines Ausführungsbeispiels eines Leuchtmittels mit Leuchtdioden erklärt.The invention will be explained with reference to an embodiment of a light emitting diode with LEDs.

Wie in der Fig. 1 dargestellt, sind die beiden Leuchtdioden 1 und 2 die beiden Lichtquellen des Leuchtmittels A.
Anstelle jeweils einer einzelnen Leuchtdiode kann aber auch jeweils eine Gruppe von Leuchtdioden zusammengefasst sein.
Die beiden Leuchtdioden 1 und 2 einem Trägerelement 5 angeordnet und zwar so, daß das Trägerelement 5 als Vieleck ausgebildet ist, bei dem zumindest zwei Seitenflächen zusammenlaufen und die Leuchtdioden 1 und 2 auf den Seitenflächen des Trägerelementes 5 angeordnet sind. Die Leuchtdioden 1 und 2 sind Vorteilhafterweise in der Mitte einer Seitenfläche des Trägerelementes 5 angeordnet.
In diesem Ausführungsbeispiel ist das Trägerelement 5 keilförmig ausgebildet.
Das Trägerelement 5 besitzt weiterhin eine mehreckige Grundfläche. Das Trägerelement 5 kann in die Richtung, von wo kein Licht abgestrahlt wird, in der Form der Grundfläche verlängert werden.Like in the Fig. 1 shown, the two light emitting diodes 1 and 2, the two light sources of the illuminant A.
Instead of a single light emitting diode, however, it is also possible to combine a group of light emitting diodes in each case.
The two light-emitting diodes 1 and 2 arranged a carrier element 5 in such a way that the carrier element 5 is formed as a polygon, converge in which at least two side surfaces and the light-emitting diodes 1 and 2 are arranged on the side surfaces of the carrier element 5. The light-emitting diodes 1 and 2 are advantageously arranged in the middle of a side surface of the carrier element 5.
In this embodiment, the carrier element 5 is wedge-shaped.
The support member 5 further has a polygonal base. The support member 5 can be extended in the direction from which no light is emitted in the shape of the base.

In Fig. 2 ist die seitliche Ansicht des Trägerelementes 5 dargestellt. Durch die Anbringung der Leuchtdioden 1 und 2 auf den zusammenlaufenden Seitenflächen wird eineIn Fig. 2 the lateral view of the support element 5 is shown. By attaching the light emitting diodes 1 and 2 on the converging side surfaces is a

Abstrahlung in zwei Hauptrichtungen erreicht. Durch die Anpassung des Anstellwinkels der beiden zusammenlaufenden Seitenflächen zueinander können die Abstrahlungsrichtungen der beiden Leuchtdioden 1 und 2 eingestellt werden.Radiation achieved in two main directions. By adjusting the angle of attack of the two converging side surfaces to each other, the radiation directions of the two LEDs 1 and 2 can be adjusted.

In Fig. 3 ist die Draufsicht auf das Trägerelement 5 dargestellt.In Fig. 3 the plan view of the support element 5 is shown.

In Fig. 4 ist die Draufsicht auf das Trägerelement 5 dargestellt. Durch die Anbringung der Leuchtdioden 1 und 2 auf den zusammenlaufenden Seitenflächen wird eine Abstrahlung in zwei Hauptrichtungen erreicht. Es werden die beiden Lichtkegel 7 und 8 gebildet, die einen langen Korridor ausleuchten können. Somit kann eine sehr gleichmäßige und großflächige Beleuchtung erreicht werden, ohne dass eine Sekundäroptik verwendet wird. Bei einer Rettungswegbeleuchtung kommt es darauf an, einen möglichst langen, aber nicht sehr breiten Rettungskorridor zu beleuchten. Für diesen Anwendungsfall ist das Leuchtmittel A mit den beiden Leuchtdioden 1 und 2 auf den zusammenlaufenden Seitenflächen des keilförmigen Trägerelementes 5 sehr gut geeignet.In Fig. 4 the plan view of the support element 5 is shown. By attaching the light emitting diodes 1 and 2 on the converging side surfaces radiation in two main directions is achieved. It forms the two beams 7 and 8, which can illuminate a long corridor. Thus, a very uniform and large-scale lighting can be achieved without a secondary optics is used. With escape route lighting, it is important to illuminate a long, but not very wide rescue corridor. For this application, the light source A with the two light-emitting diodes 1 and 2 on the converging side surfaces of the wedge-shaped support element 5 is very well suited.

Die Leuchtdioden 1 und 2 sind in Surface Mount Technologie (SMT) oder Chip-on-Board Technologie (COB) auf dem Trägerelement 5 aufgebracht. Durch Anwendung der Chip-on-Board (COB) Technologie für das Aufbringen der LED kann eine sehr gute thermische Ankopplung der LED an das Trägerelement 5 erreicht werden, zudem ermöglicht die Chip-on-Board (COB) Technologie eine sehr enge Bestückung von Leuchtdioden, wodurch bei einer Plazierung von Gruppen von Leuchtdioden eine sehr homogene Lichtverteilung erzielt werden kann.The light-emitting diodes 1 and 2 are applied to the carrier element 5 in surface mount technology (SMT) or chip-on-board technology (COB). By applying the chip-on-board (COB) technology for applying the LED, a very good thermal coupling of the LED to the carrier element 5 can be achieved, moreover, the chip-on-board (COB) technology enables a very close assembly of light-emitting diodes , whereby a very homogeneous light distribution can be achieved when placing groups of light emitting diodes.

Die Leuchtdioden 1 und 2 bestehen aus einem LED-Halbleiterchip, der durch eine Vergußmasse abgedeckt wird. Diese linsenförmige Vergußmasse, welche vorteilhafterweise sehr transparent ist, schützt zum einen die LED-Halbleiterchips und wirkt andererseits als Linse, um die von den LED-Halbleiterchips emittierte Lichtstrahlung auszurichten und optimal auszukoppeln. Diese Linse aus Vergussmasse wird im allgemeinen als Primäroptik der Leuchtdiode bezeichnet. Die Vergussmasse hat eine Linsenwirkung und kann auch einen Farbkonversionsstoff enthalten. Durch den von Farbkonversionsstoff kann beispielweise das Licht eines blauen LED-Halbleiterchips in weißes Licht umgewandelt werden.The LEDs 1 and 2 consist of an LED semiconductor chip, which is covered by a potting compound. This lenticular potting compound, which is advantageously very transparent, on the one hand protects the LED semiconductor chips and on the other hand acts as a lens in order to align the light radiation emitted by the LED semiconductor chips and to couple them out optimally. This potting compound lens is generally referred to as the primary optic of the light emitting diode. The potting compound has a lens effect and may also contain a color conversion substance. By the color conversion material, for example, the light of a blue LED semiconductor chip can be converted into white light.

Die Leuchtdioden 1 und 2 können direkt auf dem Trägerelement 5 oder aber durch ein Kontaktelement auf dem Trägerelement 5 befestigt sein. Das Kontaktelement kann beispielsweise als ein doppelseitiges Klebeband, welches vorteilhafterweise eine hohe Wärmeleitfähigkeit aufweist, ausgeführt sein und an dem Trägerelement 5 befestigt werden.The light-emitting diodes 1 and 2 can be fastened directly on the carrier element 5 or else by a contact element on the carrier element 5. The contact element can be designed, for example, as a double-sided adhesive tape, which advantageously has a high thermal conductivity, and be fastened to the carrier element 5.

Das Trägerelement 5 weist vorteilhafterweise eine hohe Wärmeleitfähigkeit auf, um die von den Leuchtdioden 1 und 2 erzeugte Wärme effektiv abzuführen und die Temperatur der LED-Halbleiterchips möglichst niedrig zu halten.The carrier element 5 advantageously has a high thermal conductivity in order to effectively dissipate the heat generated by the light-emitting diodes 1 and 2 and to keep the temperature of the LED semiconductor chips as low as possible.

Das Trägerelement 5 kann zumindest auch teilweise eine reflektierende Oberfläche ausgebildet sein, um eine bessere Lichtauskoppelung durch die Leuchtdioden 1 und 2 zu erreichen.The support member 5 may be at least partially formed a reflective surface in order to achieve a better Lichtauskoppelung by the light emitting diodes 1 and 2.

Das Trägerelement 5 kann aus einem Keramiksubstrat, aus einem Kunstharzmaterial, aus Glas oder auch Siliziumsubstrat bestehen. In einer besonderen Ausführung kann das Trägerelement 5 aus einem Keramiksubstrat bestehen. Vorzugsweise kann das Keramiksubstrat als LTCC Struktur (Low Temperature Cofired Ceramic) realisiert sein. Durch die Anwendung einer LTCC Struktur ist eine zumindest teilweise Integration von Bauelementen wie Widerständen oder Kapazitäten oder auch Leiterbahnen möglich. Durch die zumindest teilweise Integration kann ein Teil der Ansteuerelektronik 36 für die Leuchtdioden 1 und 2 in das Trägerelement 5 integriert sein. Bei dem Teil der Ansteuerelektronik 36 kann es sich beispielsweise um die Treiberschaltung oder einen Teil davon, eine Interfaceschaltung für eine Schnittstelle oder auch um einen Sensor, wie beispielweise einen Temperatur-, Helligkeits- oder Farbsensor, zur Überwachung der Leuchtdioden 1 und 2 handeln. In einem einfachen Fall sind die Zuleitungen für die Leuchtdioden 1 und 2 in das Trägerelement 5 integriert. Die elektrischen Zuleitungen für die Leuchtdioden 1 und 2 können aber auch auf dem Trägerelement 5 aufgebracht sein.The carrier element 5 may consist of a ceramic substrate, of a synthetic resin material, of glass or of silicon substrate. In a particular embodiment, the carrier element 5 may consist of a ceramic substrate. Preferably, the ceramic substrate can be realized as LTCC structure (Low Temperature Cofired Ceramic). By using an LTCC structure, it is possible to at least partially integrate components such as resistors or capacitors, or even printed conductors. As a result of the at least partial integration, part of the control electronics 36 for the light-emitting diodes 1 and 2 can be integrated into the carrier element 5. The part of the control electronics 36 may be, for example, the driver circuit or a part thereof, an interface circuit for an interface or also a sensor, such as a temperature, brightness or color sensor, for monitoring the light emitting diodes 1 and 2. In a simple case, the leads for the light-emitting diodes 1 and 2 are integrated into the carrier element 5. The electrical leads for the LEDs 1 and 2 may also be applied to the carrier element 5.

In den Fig. 5 bis Fig. 8 sind Ansichten einer weiteren Ausführungsform dargestellt. In den Fig. 5 ist die perspektivische Ansicht, bei der das Trägerelement 5 derart ausgebildet ist, dass drei Seitenflächen spitz aufeinander zulaufen und auf jeder der Seitenflächen des Trägerelementes 5 zumindest eine Leuchtdiode 1, 2 und 3 angeordnet ist.In the Fig. 5 to Fig. 8 Views of a further embodiment are shown. In the Fig. 5 is the perspective view in which the support member 5 is formed such that three side surfaces taper toward each other and at least one light emitting diode 1, 2 and 3 is arranged on each of the side surfaces of the support element 5.

Fig. 6 zeigt die seitliche Ansicht auf das Trägerelement 5 mit der an einer Seitenfläche befestigten Leuchtdiode 3. Fig. 6 shows the side view of the carrier element 5 with the attached to a side surface LED 3.

In Fig. 7 ist die Draufsicht auf das Trägerelement 5 mit den je an einer Seitenfläche befestigten Leuchtdioden 1, 2 und 3 dargestellt.In Fig. 7 is the top view of the carrier element 5 with the ever attached to a side surface LEDs 1, 2 and 3 shown.

In Fig. 8 ist die Draufsicht auf das Trägerelement 5 mit den je an einer Seitenfläche befestigten Leuchtdioden 1, 2 und 3 sowie die Lichtverteilung bei dieser Ausführungsform dargestellt. Es werden die drei Lichtkegel 7, 8 und 9 gebildet, die eine dreieckförmige Fläche ausleuchten können. Durch die gezeigte Anordnung kann jedoch nicht eine quadratische Fläche gleichmäßig ausgeleuchtet werden.In Fig. 8 is the top view of the carrier element 5 with the light-emitting diodes 1, 2 and 3 each attached to a side surface and the light distribution shown in this embodiment. The three light cones 7, 8 and 9 are formed, which can illuminate a triangular surface. The arrangement shown, however, can not uniformly illuminate a square area.

Zur gleichmäßigen Ausleuchtung einer großen, möglichst quadratischen Fläche ist die in den Fig. 9 bis Fig. 12 dargestellte Ausführungsform besser geeignet.For uniform illumination of a large, as square as possible in the FIG. 9 to FIG. 12 illustrated embodiment better suited.

In den Fig. 9 ist die perspektivische Ansicht, bei der das Trägerelement 5 derart ausgebildet ist, dass vier Seitenflächen in einer Pyramidenstruktur aufeinander zulaufen und auf jeder der Seitenflächen des Trägerelementes 5 zumindest eine Leuchtdiode 1, 2, 3 und 4 angeordnet ist. In diesem Beispiel ist das Trägerelement 5 als eine quadratische Pyramide ausgebildet, es sind jedoch auch andere Pyramidenstrukturen mit einer Grundfläche mit mehr als vier Ecken realisierbar.In the Fig. 9 is the perspective view in which the support member 5 is formed such that four side surfaces converge in a pyramidal structure and on each of the side surfaces of the support member 5 at least one light emitting diode 1, 2, 3 and 4 is arranged. In this example, the carrier element 5 is designed as a square pyramid, but other pyramid structures with a base area with more than four corners are also feasible.

Fig. 10 zeigt die seitliche Ansicht auf das Trägerelement 5 mit der an einer Seitenfläche befestigten Leuchtdiode 1. Fig. 10 shows the side view of the support member 5 with the attached to a side surface of light emitting diode. 1

In Fig. 11 ist die Draufsicht auf das Trägerelement 5 mit den je an einer Seitenfläche befestigten Leuchtdioden 1, 2, 3 und 4 dargestellt.In Fig. 11 is the top view of the carrier element 5 with the light-emitting diodes 1, 2, 3 and 4 each attached to a side surface shown.

In Fig. 12 ist die Draufsicht auf das Trägerelement 5 mit den je an einer Seitenfläche befestigten Leuchtdioden 1, 2, 3 und 4 sowie die Lichtverteilung bei dieser Ausführungsform dargestellt. Es werden die vier Lichtkegel 7, 8, 9 und 10 gebildet, die eine viereckförmige Fläche ausleuchten können. Durch die gezeigte Anordnung kann eine quadratische Fläche 12 gleichmäßig ausgeleuchtet werden. Diese Anordnung gibt dem Anwender die Möglichkeit, durch entsprechende Positionierung des Leuchtmittels A eine sehr weitflächige und gleichmäßige Ausleuchtung zu erreichen. Aufgrund der sich ergebenden quadratischen Fläche 12 kann eine definierte Fläche gezielt beleuchtet werden und durch entsprechende Positionierung von mehreren Leuchtmitteln A in regelmäßigen Abständen zueinander eine vorgegebene Fläche wie beispielsweise ein Büroraum oder ein Verkaufsraum gleichmäßig und energieeffizient ausgeleuchtet werden.In Fig. 12 is the top view of the support member 5 with the light-emitting diodes 1, 2, 3 and 4 each attached to a side surface and the light distribution shown in this embodiment. The four light cones 7, 8, 9 and 10 are formed, which can illuminate a quadrangular surface. The arrangement shown, a square surface 12 are illuminated uniformly. This arrangement gives the user the opportunity to achieve a very wide-area and uniform illumination by appropriate positioning of the illuminant A. Due to the resulting square surface 12, a defined surface can be selectively illuminated and illuminated by appropriate positioning of several bulbs A at regular intervals to each other a predetermined area such as an office or a sales room evenly and energy efficient.

In den Fig. 13 bis Fig. 15 ist eine weitere Ausführungsform dargestellt.In the FIGS. 13 to 15 another embodiment is shown.

Wie in Fig. 13 dargestellt, kann das Trägerelement 5 von einem Reflektor 6 umgeben sein. Beispielsweise kann der Reflektor durch mehrere aneinander gefügte Flächen gebildet wird, die von den Seitenflächen des Trägerelements 5 weglaufen. Für ein pyramidenförmiges Trägerelement 5 dargestellt eignet sich beispielsweise ein Reflektor in Form eines Pyramidenstumpfes.As in Fig. 13 illustrated, the support member 5 may be surrounded by a reflector 6. For example, the reflector is formed by a plurality of surfaces joined to one another, which run away from the side surfaces of the carrier element 5. For example, a reflector in the form of a truncated pyramid is suitable for a pyramidal carrier element 5.

Fig. 14 zeigt die seitliche Ansicht auf das Trägerelement 5 mit der an einer Seitenfläche befestigten Leuchtdiode 1 und dem Reflektor 6. Fig. 14 shows the side view of the support member 5 with the LED attached to a side surface 1 and the reflector. 6

In Fig. 15 ist die Draufsicht auf das Trägerelement 5 mit den je an einer Seitenfläche befestigten Leuchtdioden 1, 2, 3 und 4 und dem Reflektor 6 dargestellt.In Fig. 15 is the top view of the support member 5 with the ever attached to a side surface LEDs 1, 2, 3 and 4 and the reflector 6 shown.

In einer Weiterführung der Idee kann auch ein Leuchtmittel A mit mehreren Trägerelementen 5 bestückt sein, die in einer vorgegebenen Anordnung zueinander positioniert sind und jeweils zumindest zwei zusammenlaufende Seitenflächen besitzen, auf denen die Leuchtdioden 1 und 2 angeordnet sind. Somit kann bei Erhöhung der Gesamthelligkeit eine definierte Ausleuchtung durch das Leuchtmittel erreicht werden. Die Anordnung der Trägerelemente 5 auf dem Leuchtmittel A kann beispielweise in einer Rechteck-, Kreis- oder Dreieckanordnung oder auch in einer Matrixanordnung erfolgen.In a continuation of the idea, a light source A can also be equipped with a plurality of carrier elements 5, which are positioned in a predetermined arrangement relative to one another and each have at least two converging side surfaces on which the light emitting diodes 1 and 2 are arranged. Thus, when the overall brightness is increased, a defined illumination by the lighting means can be achieved. The arrangement of the support elements 5 on the light source A can be done for example in a rectangular, circular or triangular arrangement or in a matrix arrangement.

In einer Weiterführung der Idee kann auch eine Beleuchtungsanlage aufweisend mehrere Leuchtmittel A aufgebaut werden. Die Leuchtmittel A können in einer vorgegebenen Anordnung zueinander positioniert sein. Somit kann bei Erhöhung der Gesamthelligkeit eine definierte Ausleuchtung durch das Leuchtmittel erreicht werden. Die Anordnung der Trägerelemente 5 auf dem Leuchtmittel A kann beispielweise in einer Rechteck-, Kreis- oder Dreieckanordnung oder auch in einer Matrixanordnung erfolgen.In a continuation of the idea, a lighting system comprising a plurality of lamps A can be constructed. The lamps A can be positioned in a predetermined arrangement to each other. Thus, when the overall brightness is increased, a defined illumination by the lighting means can be achieved. The arrangement of the support elements 5 on the light source A can be done for example in a rectangular, circular or triangular arrangement or in a matrix arrangement.

Das Leuchtmittel A kann entweder bei einer Ausführung ohne Reflektor 6 direkt mittels des Trägerelements 5 an der Decke 11 oder bei einer Ausführung mit Reflektor 6 als Einbauleuchte direkt in der Decke 11 angebracht werden. Bei der Ausführung mit Reflektor 6 können wie in Fig. 16 dargestellt die Enden der Außenseiten des Reflektors 6 direkt mit der Decke 11 verbunden sein. Somit kann das Leuchtmittel A in der Decke 11 versenkt werden und kann sich somit in die Deckenkonstruktion integrieren.The light source A can be mounted directly in the ceiling 11 either by means of the support member 5 on the ceiling 11 or in an embodiment with a reflector 6 as a recessed light either in an embodiment without a reflector 6. In the version with reflector 6 can as in Fig. 16 illustrated the ends of the outer sides of the reflector 6 may be connected directly to the ceiling 11. Thus, the lamp A can be sunk in the ceiling 11 and thus can be integrated into the ceiling structure.

Fig. 17 zeigt eine perspektivische Ansicht auf ein Trägerelement 5 gemäß einer Weiterbildung der Erfindung. Fig. 18 zeigt eine frontale Ansicht eines Trägerelementes 5. Fig. 17 shows a perspective view of a support member 5 according to an embodiment of the invention. Fig. 18 shows a frontal view of a support element. 5

Das Trägerelement 5 besteht in diesem Ausführungsbeispiel aus einem Kühlkörper 15 und zumindest einem LED Träger 16. Der LED Träger 16 kann durch einzelne Leiterplatten gebildet werden, die jeweils auf eine Seitenfläche des Kühlkörpers 15 aufgesetzt werden. Der LED Träger 16 kann aber auch als ein vorgefertigter einstückiger LED Träger ausgebildet sein, der eine Polyederform (beispielsweise eine Pyramidenform) aufweist und auf den Kühlkörper 15 aufgesetzt werden kann.The carrier element 5 consists in this embodiment of a heat sink 15 and at least one LED carrier 16. The LED carrier 16 may be formed by individual circuit boards, which are each placed on a side surface of the heat sink 15. The LED carrier 16 may also be formed as a prefabricated one-piece LED carrier having a polyhedron shape (for example, a pyramidal shape) and can be placed on the heat sink 15.

Auf jede Seitenfläche den Kühlkörper 15 kann ein LED Träger 16 aufgesetzt werden. Auf dem LED Träger 16 ist jeweils mindestens eine Leuchtdiode 1 oder 2 und die Elektrische Zuleitung 17 zur elektrischen Kontaktierung der Leuchtdiode 1 oder 2 aufgebracht. Die Elektrische Zuleitung 17 kann sich auf der Oberseite oder Unterseite des LED Trägers 16 befinden oder aber innerhalb des LED Trägers 16. Wenn sich die Elektrische Zuleitung 17 innerhalb des LED Trägers 16 befindet, kann sie sich beispielsweise bei einer mehrlagigen Ausführung des LED Trägers 16 in einer inneren Schicht des LED Trägers 16 befinden. Der LED Träger 16 mit den Elektrischen Zuleitung 17 und den Lüftungs-Öffnungen 19 an seinen seitlichen Kanten, aber ohne bestückte Leuchtdioden, ist in Fig. 20 dargestellt. Für eine Bestückung eines vorgefertigten LED Trägers 16, der bereits mit den Elektrischen Zuleitung 17 ausgeliefert wird, eignen sich beispielsweise Leuchtdioden, die in Surface Mount Technologie (SMT) bestückt werden können.On each side surface of the heat sink 15, an LED support 16 can be placed. At least one light-emitting diode 1 or 2 and the electrical supply line 17 for electrical contacting of the light-emitting diode 1 or 2 is respectively applied to the LED carrier 16. The electrical lead 17 may be located on the top or bottom of the LED carrier 16 or within the LED carrier 16. When the electrical lead 17 is within the LED carrier 16, it may, for example, in a multilayer design of the LED carrier 16 in an inner layer of the LED carrier 16 are located. The LED carrier 16 with the electrical supply line 17 and the ventilation openings 19 at its side Edges, but without populated LEDs, is in Fig. 20 shown. For example, light-emitting diodes which can be equipped with surface mount technology (SMT) are suitable for equipping a prefabricated LED carrier 16, which is already supplied with the electrical supply line 17.

Der LED Träger 16 kann beispielsweise aus einem Kunstharzmaterial (FR4 oder CEM1) oder auch aus einem Keramiksubstrat als LTCC Struktur bestehen.The LED carrier 16 may for example consist of a synthetic resin material (FR4 or CEM1) or also of a ceramic substrate as LTCC structure.

Der Kühlkörper 15 besteht vorteilhafterweise aus einem thermisch gut leitfähigen Material und kann zudem auch mechanisch stabil sein. In einer besonderen Ausführung kann das Kühlkörper 15 aus einem Keramiksubstrat bestehen. Vorteilhafter weist der Kühlkörper 15 eine oder mehrere Vertiefungen 18 auf. Diese Vertiefungen 18 ermöglichen eine bessere Kühlung des Trägerelementes 5, da sie Kanäle bilden, durch die Luft strömen kann und somit die Wärmeabfuhr verbessern. Die Vertiefungen 18 verlaufen quer durch den Kühlkörper 15, vorteilhafterweise parallel zu einer Aussenkante des Kühlkörpers 15. In einer besonderen Ausführungsform ist der Kühlkörper 15 derart ausgebildet, dass er aus einer Vielzahl von aneinandergefügten Lamellen besteht. Eine mögliche Ausführungsform des Kühlkörpers 15 ist in Fig. 19 dargestellt.The heat sink 15 is advantageously made of a thermally highly conductive material and may also be mechanically stable. In a particular embodiment, the heat sink 15 may consist of a ceramic substrate. Advantageously, the heat sink 15 has one or more depressions 18. These recesses 18 allow a better cooling of the carrier element 5, since they form channels through which air can flow and thus improve the heat dissipation. The recesses 18 extend transversely through the heat sink 15, advantageously parallel to an outer edge of the heat sink 15. In a particular embodiment, the heat sink 15 is formed such that it consists of a plurality of juxtaposed fins. A possible embodiment of the heat sink 15 is shown in FIG Fig. 19 shown.

Die Vertiefungen 18 des Kühlkörpers 15 können derart angeordnet sein, dass sie Kanäle bilden, die eine Art Kaminwirkung nutzen, so dass sich über entsprechend angeordnete Lüftungs-Öffnungen 19 ein Luftzug zur Kühlung ausbilden kann. Beispielsweise können die Vertiefungen 18 auch aus Richtung der Unterkante des Kühlkörpers 15 in Richtung des oberen Endes des Kühlkörpers 15 verlaufen, so dass die am Kühlkörper 15 und über den LED Träger 16 (und somit durch die Leuchtdioden 1, 2) erwärmte Luft aufsteigt und durch die oberen Lüftungs-Öffnungen 19 austreten kann, während über an der Unterkante des LED Trägers 16 bzw. des Trägerelements 5 vorhandene Lüftungs-Öffnungen 19 kühlere Luft eintreten kann. Diese Luft kann somit durch den Kamineffekt quasi angesaugt werden.The recesses 18 of the heat sink 15 may be arranged such that they form channels that use a kind of chimney effect, so that 19 can form a draft for cooling via appropriately arranged ventilation openings. For example, the depressions 18 can also be seen from the direction of the lower edge of the heat sink 15 in FIG Direction of the upper end of the heat sink 15 so that the heat sink on the heat sink 15 and the LED support 16 (and thus by the light emitting diodes 1, 2) heated air and can escape through the upper vent openings 19, while over at the lower edge of the LED carrier 16 and the support member 5 existing ventilation openings 19 may enter cooler air. This air can thus be sucked by the chimney effect so to speak.

Der Kühlkörper 15 kann Haltemittel zum Fixieren des oder der LED Träger 16 aufweisen.The heat sink 15 may comprise holding means for fixing the LED carrier or carriers 16.

Innerhalb des Trägerelements 5 können sich zusätzlich zum Kühlkörper 15 weitere Kühlvorrichtungen vorgesehen sein, wie beispielsweise eine Heatpipe, ein Peltierelement oder auch ein Lüfter.Within the support member 5, in addition to the heat sink 15 further cooling devices may be provided, such as a heat pipe, a Peltier element or a fan.

Der LED Träger 16 weist Vorteilhafterweise an seinen seitlichen Kanten Lüftungs-Öffnungen 19 auf. Die Lüftungs-Öffnungen 19 ermöglichen eine Luftströmung unterhalb des LED Träger 16 durch die Vertiefungen 18 des Kühlkörpers 15. Vorteilhafterweise sind die Lüftungs-Öffnungen 19 so angeordnet, dass sie sich jeweils über den Vertiefungen 18 des Kühlkörpers 15 befinden und somit eine optimale Wärmeabfuhr ermöglichen.The LED carrier 16 advantageously has ventilation openings 19 at its lateral edges. The ventilation openings 19 allow an air flow below the LED carrier 16 through the recesses 18 of the heat sink 15. Advantageously, the ventilation openings 19 are arranged so that they are respectively above the recesses 18 of the heat sink 15 and thus allow optimal heat dissipation.

Das Trägerelement 5 kann auch nur durch LED Träger 16 gebildet werden, wobei auf einen Kühlkörper 15 verzichtet wird. Beispielsweise kann dann der LED Träger 16 selbst Mittel zur Wärmeabfuhr aufweisen. Beispielsweise kann er Durchkontaktierungen oder integrierte Wärmeleitschichten aufweisen. Die Wärmeleitschichten können beispielsweise bei einer mehrlagigen Ausführung des LED Trägers 16 durch Nutzung einer Metallschicht gebildet werden. Die Metallschicht kann beispielsweise durch eine Schicht innerhalb des LED Trägers 16 oder durch die unterste oder oberste Schicht des LED Trägers 16 gebildet werden.The carrier element 5 can also be formed only by LED carrier 16, wherein a heat sink 15 is dispensed with. For example, then the LED carrier 16 itself have means for heat dissipation. For example, it can have plated-through holes or integrated heat conducting layers. The heat conducting layers can, for example be formed in a multilayer design of the LED carrier 16 by using a metal layer. The metal layer may be formed, for example, by a layer within the LED carrier 16 or by the lowermost or uppermost layer of the LED carrier 16.

Das Trägerelement 5 kann auf ein Basismodul 20 aufgesetzt werden, wie dies in Fig. 21 dargestellt ist. Das Basismodul 20 kann einen Teil der Ansteuerelektronik 36 für die Leuchtdioden 1,2 enthalten. Auch eine Batterie 38 kann in dem Basismodul 20 untergebracht sein. Zusätzlich kann auch die Befestigung des Leuchtmittel A an einer Decke oder auch an einer Leuchte durch Befestigungsmittel, die das Basismodul 20 aufweist, sichergestellt werden.The carrier element 5 can be placed on a base module 20, as shown in FIG Fig. 21 is shown. The base module 20 may include a portion of the drive electronics 36 for the light emitting diodes 1,2. Also, a battery 38 may be housed in the base module 20. In addition, the attachment of the lamp A on a ceiling or on a lamp by fastening means, which has the base module 20, can be ensured.

Das Trägerelement 5 kann lösbar auf dem Basismodul 20 angebracht sein. Es kann beispielsweise durch eine Schraubverbindung, eine Steckverbindung mit Widerhaken oder aber auch durch einen Bajonettverschluss mit dem Basismodul 20 verbunden werden. Somit ist es beispielsweise möglich verschiedene Trägerelemente 5 (mit verschiedener Anzahl von Seitenflächen oder Leuchtdioden) mit unterschiedlichen Basismodulen 20 wie in einem Baukastensystem zu kombinieren.The support member 5 may be detachably mounted on the base module 20. It can be connected to the base module 20, for example, by a screw connection, a plug connection with barbs or else by a bayonet closure. Thus, it is possible, for example, different carrier elements 5 (with different numbers of side surfaces or light-emitting diodes) to be combined with different base modules 20 as in a modular system.

Auf das Trägerelement 5 und das Basismodul 20 kann ein Reflektor 6 aufgesetzt werden, wie dies in Fig. 22 dargestellt ist.On the support member 5 and the base module 20, a reflector 6 can be placed, as shown in Fig. 22 is shown.

Weitere Ansichten des Leuchtmittels A mit dem Basismodul. 20 und einem Reflektor 6 sind in den Fig. 23, 23a, 24 und 25 dargestellt.Further views of the bulb A with the base module. 20 and a reflector 6 are in the Fig. 23, 23a . 24 and 25 shown.

Wie bereits anhand Fig. 13 erläutert, kann ein Reflektor 6 auf das Trägerelement 5 aufgesetzt werden und dieses umgeben. Der Reflektor 6 kann Öffnungen für die Leuchtdioden 1 und 2 aufweisen. Um die Öffnungen für die Leuchtdioden 1 und 2 weist der Reflektor 6 Ausnehmungen 23 auf. Diese Ausnehmungen 23 dienen der verbesserten Lichtlenkung und bündeln das Licht in eine vorgegebene , Abstrahlrichtung. Somit kann die Ausbildung der Lichtkegel 7 und 8 verbessert werden und beispielsweise der Abstrahlwinkel festgelegt werden. Somit kann ein Großteil des Lichtes in die vorgegebene Abstrahlrichtung abgegeben werden. Vorteilhafterweise sind die Ausnehmungen 23 halbkreisförmig oder parabelförmig ausgeformt. Beispielsweise ist die Leuchtdiode 1 in der Mitte der Ausnehmung 23 oder zumindest in der Nähe der Mitte angeordnet.. Die Leuchtdiode 1 kann sich auch im oder in der Nähe des Brennpunktes der halbkreisförmigen oder parabelförmigen Ausnehmung 23 befinden, damit ein Großteil des von der Leuchtdiode 1 abgestrahlten Lichtes in einem Lichtkegel 7 gebündelt wird.As already shown Fig. 13 explained, a reflector 6 can be placed on the support member 5 and this surrounded. The reflector 6 may have openings for the light-emitting diodes 1 and 2. To the openings for the LEDs 1 and 2, the reflector 6 has recesses 23. These recesses 23 are used for improved light control and focus the light in a predetermined, emission direction. Thus, the formation of the light cone 7 and 8 can be improved and, for example, the radiation angle can be set. Thus, a large part of the light can be emitted in the predetermined emission direction. Advantageously, the recesses 23 are formed semicircular or parabolic. For example, the light-emitting diode 1 is arranged in the middle of the recess 23 or at least in the vicinity of the center. The light-emitting diode 1 can also be located in or near the focal point of the semicircular or parabolic recess 23, so that a large part of the light emitted from the light emitting diode 1 radiated light is concentrated in a cone of light 7.

Ein Ausschnitt des Leuchtmittels A mit dem Basismodul 20 und einem Reflektor 6 ist in Fig. 26 dargestellt. Dort sind die Ausnehmung 23 mit der in der Ausnehmung 23 angeordneten Leuchtdiode 1 und der erzeugte Lichtkegel 7 dargestellt.A section of the luminous means A with the base module 20 and a reflector 6 is in Fig. 26 shown. There, the recess 23 are shown with the light-emitting diode 1 arranged in the recess 23 and the light cone 7 produced.

Der Reflektor 6 kann zusätzlich eine Status-LED 24 aufweisen, die von der integrierten Ansteuerelektronik 36 gesteuert wird und im Fehlerfall oder zu Wartungszwecken ein Signal abgeben kann. Die Status-LED 24 kann auch andere Informationen wie die Adresse des Leuchtmittels A ausgeben. Die Status LED 24 kann durch eine zweifarbig Leuchtdiode gebildet werden und somit verschiedene Farben ausgeben. Durch die verschiedenen Farben können unterschiedliche Zustände, Rückmeldungen oder auch Fehler signalisiert werden. Die Status-LED 24 kann auch auf dem Trägerelement 5 angeordnet sein und der Reflektor 6 kann eine Öffnung aufweisen, durch die die Status-LED 24 herausragt oder durch sie sichtbar ist. In einer vorteilhaften Ausführung ist die Status-LED 24 so angeordnet, dass sie sich an der Spitze des Reflektors 6 bzw. an der Spitze des Trägerelementes 5 befindet.The reflector 6 may additionally have a status LED 24, which is controlled by the integrated control electronics 36 and can emit a signal in the event of a fault or for maintenance purposes. The status LED 24 may also output other information such as the address of the illuminant A. The status LED 24 can be a two-color LED are formed and thus spend different colors. The different colors can signal different states, feedbacks or even errors. The status LED 24 can also be arranged on the carrier element 5 and the reflector 6 can have an opening through which the status LED 24 protrudes or is visible through it. In an advantageous embodiment, the status LED 24 is arranged so that it is located at the top of the reflector 6 and at the top of the support element 5.

Die Status-LED 24 kann aber auch an einem anderen Ort des Leuchtmittels A angebracht sein, beispielsweise in oder an dem Basismodul 20.However, the status LED 24 can also be attached to another location of the luminous means A, for example in or on the base module 20.

Das Basismodul 20 kann beispielsweise die Form eines Pyramidenstumpfes besitzen und somit eine optische Verlängerung des Trägerelementes 5 bilden. Das Basismodul 20 kann aber auch einen runden Querschnitt aufweisen und beispielsweise die Form eines Kegelstumpfes besitzen und somit eine optische Verlängerung des Trägerelementes 5 mit aufgesetztem Reflektor 6 bilden, wie in Fig. 25 dargestellt.The base module 20 may, for example, have the shape of a truncated pyramid and thus form an optical extension of the carrier element 5. However, the base module 20 can also have a round cross-section and, for example, have the shape of a truncated cone and thus form an optical extension of the carrier element 5 with the reflector 6 attached, as in FIG Fig. 25 shown.

Das Basismodul 20 kann beispielsweise aus einem Kunststoffmaterial oder auch aus einem metallischen Material, welches vorzugsweise lackiert wird, bestehen.The base module 20 may for example consist of a plastic material or of a metallic material, which is preferably painted.

Das Basismodul 20 kann mit einer Bodenplatte 21 verbunden sein.The base module 20 may be connected to a bottom plate 21.

In Fig. 27 und Fig. 28 ist eine Ansicht von unten auf die Bodenplatte 21, welche in das Basismodul 20 eingesetzt werden kann, dargestellt.In Fig. 27 and Fig. 28 is a bottom view of the bottom plate 21, which can be inserted into the base module 20 shown.

In den Fig. 29 und 30 ist eine Ansicht des Leuchtmittels A im Querschnitt dargestellt.In the Fig. 29 and 30 is a view of the bulb A shown in cross section.

Das Basismodul 20 mit der eingesetzten Bodenplatte 21 kann einen Teil der Ansteuerelektronik 36 für die Leuchtdioden 1,2 enthalten. Auch eine Batterie 38 kann in dem Basismodul 20 untergebracht sein. Zusätzlich kann auch die Befestigung des Leuchtmittels A an einer Decke oder auch an einer Leuchte mittels der Bodenplatte 21 durch Befestigungsmittel wie beispielsweise Befestigungslöcher 28 sichergestellt werden. Die Bodenplatte 21 kann weiterhin einen Kabeldurchlass 26 aufweisen.The base module 20 with the bottom plate 21 used may contain part of the control electronics 36 for the light-emitting diodes 1, 2. Also, a battery 38 may be housed in the base module 20. In addition, the attachment of the illuminant A on a ceiling or on a lamp by means of the bottom plate 21 by fastening means such as mounting holes 28 can be ensured. The bottom plate 21 may further include a cable passage 26.

Die Ansteuerelektronik 36 kann sich auf einer Platine 46 befinden. Die Platine 46 kann entweder direkt an der Bodenplatte 21 oder dem Basismodul 20 befestigt sein oder an einer Halteplatte 44. Die Halteplatte 44 kann sich innerhalb des Basismoduls 20 bzw. an der Bodenplatte 21 befinden. An der Halteplatte 44 kann auch die Ansteuerelektronik 36 und / oder die Batterie 38 befestigt werden.
Die Batterie 38 kann über eine lösbare Verbindung wie beispielsweise eine Klemmverbindung 42, welche die Batterie 38 an einer oder mehreren Stellen fixieren kann, an der Halteplatte 44 befestigt werden. Die Ansteuerelektronik 36 kann Kontaktierungsmittel 34 aufweisen, welche beispielsweise auf der Platine 46 oder der Halteplatte 44 angeordnet sind.The control electronics 36 may be located on a circuit board 46. The board 46 may be attached either directly to the bottom plate 21 or the base module 20 or to a support plate 44. The support plate 44 may be located within the base module 20 and the bottom plate 21, respectively. On the holding plate 44 and the drive electronics 36 and / or the battery 38 can be attached.
The battery 38 may be secured to the support plate 44 via a releasable connection, such as a clamped connection 42, which may fix the battery 38 at one or more locations. The control electronics 36 may comprise contacting means 34, which are arranged for example on the board 46 or the holding plate 44.

Die Bodenplatte 21 kann lösbar auf dem Basismodul 20 verbunden sein. Sie kann beispielsweise durch eine Schraubverbindung, eine Steckverbindung mit Widerhaken oder aber auch durch einen Bajonettverschluss mit dem Basismodul 20 verbunden werden. Es ist auch eine Verbindung möglich, indem die Bodenplatte an einer Stelle mit Basismodul 20 über einen Schwenkmechanismus 30 wie beispielsweise ein Scharnier verbunden ist, und an einer zweiten Stelle zusätzlich über eine weitere Halterung verbunden ist. Diese weitere Halterung kann beispielsweise durch eine Halterung mit Widerhaken 32 realisiert sein. Somit ist es möglich Bodenplatte 21 von dem Basismodul 20 zumindest teilweise zu lösen, um beispielsweise die enthaltene Batterie 38 zu tauschen, die Verkabelung oder Kontaktierung zu ändern oder um einen Zugriff auf die Ansteuerelektronik 36 zu haben.The bottom plate 21 may be detachably connected to the base module 20. It can be connected to the base module 20, for example, by a screw connection, a plug connection with barbs or else by a bayonet closure. A connection is also possible by connecting the bottom plate at one location to base module 20 via a pivot mechanism 30 such as a hinge, and additionally connecting it at a second location via another fixture. This further holder can be realized for example by a holder with barbs 32. Thus, it is possible to at least partially detach base plate 21 from base module 20, for example, to swap the contained battery 38, to change the wiring or contacting, or to have access to control electronics 36.

Die Batterie 38, die innerhalb des Basismoduls 20 angeordnet ist, kann der Versorgung der Leuchtdioden 1,2 dienen. Insbesondere in einem Notbeleuchtungsfall, also beispielsweise bei einem Ausfall der Nutzspannung, kann die Versorgung der Leuchtdioden 1,2 durch die Ansteuerelektronik 36 aus der Batterie 38 gespeist werden.The battery 38, which is arranged within the base module 20, can serve to supply the light-emitting diodes 1, 2. In particular, in an emergency lighting case, so for example in case of failure of the useful voltage, the supply of light emitting diodes 1,2 can be powered by the control electronics 36 from the battery 38.

Die Ansteuerelektronik 36 kann über eine Schnittstelle steuerbar sein. In diesem Fall kann die Ansteuerelektronik 36 eine Interfaceschaltung enthalten.
Die Schnittstelle kann für eine drahtgebundene oder drahtlose Kommunikation geeignet sein. Beispielsweise kann das Leuchtmittel A und dessen Ansteuerelektronik 36 über einen DALI Bus oder einen anderen drahtgebundenen digitalen Bus angesteuert werden. Das Leuchtmittel A und dessen Ansteuerelektronik 36 über eine drahtlose Kommunikation wie beispielsweise eine Funkverbindung oder eine Infrarotverbindung angesteuert werden. Über die Schnittstelle können beispielsweise Helligkeits-, Wartungs- oder Statusbefehle zu und/oder von dem Leuchtmittel A gesendet werden. Sofern ein Sensor, wie beispielweise ein Temperatur-, Helligkeits- oder Farbsensor, Teil der Ansteuerelektronik 36 ist, können auch Informationen des Sensors über die Schnittstelle übertragen werden. Über die Ansteuerelektroriik 36 kann die Helligkeit und / oder die Farbwiedergabe der Leuchtdioden 1, 2 eingestellt und geregelt werden. Wenn das. Leuchtmittel A über eine Schnittstelle verfügt, kann über diese Helligkeit und / oder die Farbwiedergabe der Leuchtdioden 1, 2 gesteuert werden.The control electronics 36 may be controllable via an interface. In this case, the control electronics 36 may include an interface circuit.
The interface may be suitable for wired or wireless communication. For example, the light source A and its control electronics 36 can be controlled via a DALI bus or another wired digital bus. The light source A and its control electronics 36 via a wireless Communication such as a wireless connection or an infrared connection are controlled. For example, brightness, maintenance or status commands to and / or from the illuminant A can be sent via the interface. If a sensor, such as a temperature, brightness or color sensor, part of the control electronics 36, and information from the sensor can be transmitted via the interface. About the Ansteuerelektroriik 36, the brightness and / or the color reproduction of the LEDs 1, 2 can be adjusted and regulated. If the illuminant A has an interface, it is possible to control this brightness and / or the color rendering of the light-emitting diodes 1, 2.

In einer vorteilhaften Ausführungsform ist die Ansteuerelektronik 36 auf der Platine 46 derart in dem Leuchtmittel A angeordnet, dass sie in einer parallelen Ebene zur Unterseite des Trägerelements 5 liegt. Dadurch ist der Aufbau eines Leuchtmittels A mit relativ niedriger Bauhöhe möglich, wobei trotzdem eine sehr gute Lichtverteilung durch das abgestrahlte Licht erreicht werden kann.In an advantageous embodiment, the control electronics 36 is arranged on the board 46 in the illuminant A such that it lies in a parallel plane to the underside of the carrier element 5. As a result, the construction of a luminous means A with a relatively low height is possible, while still a very good light distribution can be achieved by the radiated light.

Das Leuchtmittel A kann auch anstelle oder zusätzlich zu der Bodenplatte 21 über einen Schraub- oder Stecksockel verfügen, über den das Leuchtmittel A in eine Fassung für Lampen eingesetzt werden kann. Diese Fassung für Lampen kann beispielsweise eine Fassung für Glühlampen (z.B. E27), für Halogenlampen oder auch für Leuchtstofflampen sein. Wenn das Leuchtmittel A über einen Schraub- oder Stecksockel verfügt, kann es ohne Eingriff in die Verdrahtung von einem Anwender installiert und ausgetauscht werden, ohne dass ein Elektroinstallateur diese Arbeit ausführen muß.The illuminant A may also have instead of or in addition to the bottom plate 21 via a screw or socket, via which the illuminant A can be inserted into a socket for lamps. This socket for lamps, for example, be a socket for incandescent (eg E27), for halogen lamps or fluorescent lamps. If the bulb A via a screw or Plug-in base, it can be installed and replaced by a user without intervention in the wiring, without an electrician must perform this work.

In einer Weiterführung der Idee kann auch eine Beleuchtungsanlage aufweisend mehrere Leuchtmittel A aufgebaut werden. Die Leuchtmittel A können in einer vorgegebenen Anordnung zueinander positioniert sein. Somit kann bei Erhöhung der Gesamthelligkeit eine definierte Ausleuchtung durch das Leuchtmittel erreicht werden. Die Anordnung der Trägerelemente 5 auf dem Leuchtmittel A kann beispielweise in einer Rechteck-, Kreis- oder Dreieckanordnung oder auch in einer Matrixanordnung erfolgen. Da die Trägerelemente 5 in einer bevorzugten Ausführungsform von dem Basismodul 20 lösbar sind, können auch innerhalb einer Beleuchtungsanlage verschiedene Formen von Trägerelementen 5 kombiniert werden, je nach dem jeweiligen Ausleuchtungsbedarf des jeweiligen Teiles des Raumes. Beispielsweise kann für die Beleuchtung eines länglichen Korridors ein Leuchtmittel A mit zwei Leuchtdioden 1 und 2 auf den zusammenlaufenden Seitenflächen des keilförmigen Trägerelementes 5 angewendet werden, während für die gleichmäßige Ausleuchtung einer quadratischen Fläche 12 (wie beispielsweise ein Büroraum oder ein Verkaufsraum) ein Trägerelement 5 mit vier Leuchtdioden 1, 2, 3 und 4 eingesetzt werden kann. Durch diese Anwendung eines Trägerelementes 5 mit vier Seitenflächen ist wie bereits erwähnt eine gleichmäßige und großflächige Ausleuchtung einer quadratischen Fläche möglich. Alternativ kann hier aber auch ein Trägerelement 5 mit drei Seitenflächen gut eingesetzt werden.In a continuation of the idea, a lighting system comprising a plurality of lamps A can be constructed. The lamps A can be positioned in a predetermined arrangement to each other. Thus, when the overall brightness is increased, a defined illumination by the lighting means can be achieved. The arrangement of the support elements 5 on the light source A can be done for example in a rectangular, circular or triangular arrangement or in a matrix arrangement. Since the carrier elements 5 are detachable from the base module 20 in a preferred embodiment, different forms of carrier elements 5 can also be combined within a lighting system, depending on the respective illumination requirement of the respective part of the room. For example, for the illumination of an elongated corridor, a light source A with two light emitting diodes 1 and 2 are applied to the converging side surfaces of the wedge-shaped support element 5, while for the uniform illumination of a square surface 12 (such as an office space or a sales room), a support member 5 with four LEDs 1, 2, 3 and 4 can be used. By this application of a carrier element 5 with four side surfaces, a uniform and large-area illumination of a square surface is possible, as already mentioned. Alternatively, however, a carrier element 5 with three side surfaces can also be used well here.

Durch das erfindungsgemäße Leuchtmittel A lässt beispielsweise eine Notbeleuchtung wie beispielsweise eine Fluchtwegbeleuchtung oder Notwegbeleuchtung realisieren. Dieses Leuchtmittel A kann bereits die erforderlichen Kontaktierungsmittel 34, eine Ansteuerelektronik 36 und auch gegebenenfalls eine Batterie 38 enthalten und ermöglicht gleichzeitig eine sehr gute Lichtausbeute und - verteilung bei möglichst kompakter Bauform.By means of the illuminant A according to the invention, for example, an emergency lighting such as escape route lighting or emergency lighting can be realized. This illuminant A can already contain the required contacting means 34, a control electronics 36 and also optionally a battery 38 and at the same time enables a very good luminous efficacy and distribution with the most compact possible design.

Alternativ sind aber auch andere Beleuchtungsanwendungen in Gebäuden und Räumen oder auch im Freien (außerhalb von Gebäuden, beispielsweise Straßenbeleuchtungen) realisierbar.Alternatively, however, other lighting applications in buildings and rooms or outdoors (outside of buildings, such as street lighting) can be realized.

Derartige Leuchtmittel A in einer Beleuchtungsanlage können über ihre Schnittstelle miteinander vernetzt sein und neben den Informationen, die der Nutzer sendet, auf untereinander Informationen beispielsweise der teilweise enthaltenen Sensoren übertragen und austauschen..Such lamps A in a lighting system can be networked with each other via their interface and in addition to the information sent by the user, transmitted to each other information, for example, the partially contained sensors and replace ..

Bezeichnungsliste:Name list:

  • Leuchtmittel AIlluminant A
  • Leuchtdioden 1, 2, 3, 4Light-emitting diodes 1, 2, 3, 4
  • Trägerelement 5Carrier element 5
  • Reflektor 6Reflector 6
  • Lichtkegel 7, 8, 9, 10Light cone 7, 8, 9, 10
  • Decke 11Ceiling 11
  • quadratische Fläche 12square area 12
  • Kühlkörper 15Heat sink 15
  • LED Träger 16LED carrier 16
  • Elektrische Zuleitung 17Electrical supply line 17
  • Vertiefungen 18Depressions 18
  • Lüftungs-Öffnungen 19Ventilation openings 19
  • Basismodul 20Basic module 20
  • Bodenplatte 21Bottom plate 21
  • Lichtlenkaufsatz 22Light guide attachment 22
  • Ausnehmungen 23Recesses 23
  • Status-LED 24Status LED 24
  • Kabeldurchlass 26Cable passage 26
  • Befestigungslöcher 28Mounting holes 28
  • Schwenkmechanismus. (Scharnier) 30Swivel mechanism. (Hinge) 30
  • Halterung mit Widerhaken 32Bracket with barbs 32
  • Kontaktierungsmittel 34Contacting agent 34
  • Ansteuerelektronik 36Control electronics 36
  • Batterie 38Battery 38
  • 4040
  • Klemmverbindung (für die Fixierung der Batterie) 42Clamping connection (for fixing the battery) 42
  • Halteplatte 44Retaining plate 44
  • Platine 46Board 46

Claims (12)

  1. Lighting device (A) with
    - at least two light diodes (1, 2),
    - a carrier element on which the light diodes (1, 2) are arranged,
    wherein the light diodes (1, 2) are arranged on the side surfaces of the carrier element (5),
    and the carrier element (5) is positioned on a base module (20),
    wherein at least one battery (38) is integrated into the carrier element (5) or into the base module (20) for supplying the light diodes (1, 2),
    characterised in that
    at least one part of the control electronics (36) for the light diodes (1, 2) is integrated into the carrier element (5) or into the base module (20), and
    that the carrier element (5) is configured as a polygon in which at least four side surfaces converge.
  2. Lighting device according to claim 1, characterised in that a broad beam is achieved through the arrangement of the light diodes (1, 2).
  3. Lighting device according to any one of claims 1-2, characterised in that the carrier element (5) is surrounded by a reflector (6).
  4. Lighting device according to claim 3, characterised in that the reflector (6) has recesses (23) that are used to improve light guidance and bundle the light of light diodes (1,2) in a predetermined beam direction.
  5. Lighting device according to any one of claims 1-4, characterised in that the carrier element (5) is formed from a heat-conducting material.
  6. Lighting device according to any one of claims 1-5, characterised in that the carrier element (5) is formed by a cooling body (15) and at least one LED carrier (16).
  7. Lighting device according to any one of claims 1-6, characterised in that the electrical supply lines (17) for the light diodes (1, 2) are positioned on the carrier element (5), particularly on the LED carrier(16).
  8. Lighting device according to any one of claims 1-7, characterised in that the base module (20) is connected to a bottom plate (21).
  9. Lighting device according to any one of claims 1-8, characterised in that at least one status LED (24) is arranged on the carrier element (5) or on the reflector (6).
  10. Lighting device according to any one of claims 1-9, characterised in that no shared lens or similar optics or cover element is positioned over the light diodes (1,2) or reflector (6).
  11. Emergency lighting having at least one lighting device (A) according to any one of claims 1-10.
  12. Emergency lighting according to claim 11, characterised in that the control electronics (36) of the lighting device (A) are respectively controllable via an interface and the lighting devices (A) are linked with one another via their interfaces.
EP09775575.5A 2008-07-24 2009-07-24 Lighting device with led Not-in-force EP2307789B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
AT4072008 2008-07-24
PCT/AT2009/000289 WO2010009491A1 (en) 2008-07-24 2009-07-24 LIGHTING DEVICE COMPRISING LEDs

Publications (2)

Publication Number Publication Date
EP2307789A1 EP2307789A1 (en) 2011-04-13
EP2307789B1 true EP2307789B1 (en) 2015-09-09

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Application Number Title Priority Date Filing Date
EP09775575.5A Not-in-force EP2307789B1 (en) 2008-07-24 2009-07-24 Lighting device with led

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EP (1) EP2307789B1 (en)
AT (1) AT524690B1 (en)
DE (1) DE112009001774B4 (en)
WO (1) WO2010009491A1 (en)

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DE202011000367U1 (en) * 2011-02-17 2012-05-18 Tridonic Gmbh & Co. Kg Combined sensor / emergency light unit for a lighting system
DE102011076714B4 (en) * 2011-02-17 2024-01-04 Tridonic Gmbh & Co Kg Combined sensor/emergency light unit for a lighting system
EP2573450B1 (en) * 2011-09-23 2014-12-10 Hella KGaA Hueck & Co Airport and heliport lighting system
WO2017003399A1 (en) * 2015-06-29 2017-01-05 Mutlu Seyit A hanging apparatus for fixtures
EP4083496A1 (en) * 2021-04-30 2022-11-02 mawa design Licht- und Wohnideen GmbH Housing for a light

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US6746885B2 (en) * 2001-08-24 2004-06-08 Densen Cao Method for making a semiconductor light source
US7781787B2 (en) * 2001-11-16 2010-08-24 Toyoda Gosei, Co., Ltd. Light-emitting diode, led light, and light apparatus
US7234844B2 (en) * 2002-12-11 2007-06-26 Charles Bolta Light emitting diode (L.E.D.) lighting fixtures with emergency back-up and scotopic enhancement
US20050169006A1 (en) * 2004-01-30 2005-08-04 Harvatek Corporation Led chip lamp apparatus
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JP2006244725A (en) * 2005-02-28 2006-09-14 Atex Co Ltd Led lighting system
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DE202007008258U1 (en) * 2007-04-30 2007-10-31 Lumitech Produktion Und Entwicklung Gmbh LED bulbs
DE102007043904A1 (en) * 2007-09-14 2009-03-19 Osram Gesellschaft mit beschränkter Haftung Luminous device
DE102007043903A1 (en) * 2007-09-14 2009-03-26 Osram Gesellschaft mit beschränkter Haftung Luminous device

Also Published As

Publication number Publication date
AT524690A5 (en) 2022-08-15
AT524690B1 (en) 2022-08-15
EP2307789A1 (en) 2011-04-13
DE112009001774B4 (en) 2020-10-01
WO2010009491A1 (en) 2010-01-28
DE112009001774A5 (en) 2011-09-29

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