EP1664621B1 - Mit leuchtdioden versehener stab - Google Patents

Mit leuchtdioden versehener stab Download PDF

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Publication number
EP1664621B1
EP1664621B1 EP04769180A EP04769180A EP1664621B1 EP 1664621 B1 EP1664621 B1 EP 1664621B1 EP 04769180 A EP04769180 A EP 04769180A EP 04769180 A EP04769180 A EP 04769180A EP 1664621 B1 EP1664621 B1 EP 1664621B1
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EP
European Patent Office
Prior art keywords
lights
bars
leds
light source
microprocessor
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
EP04769180A
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English (en)
French (fr)
Other versions
EP1664621A2 (de
Inventor
Bruno Baiardi
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.)
Space Cannon VH SpA
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Space Cannon VH SpA
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Filing date
Publication date
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Publication of EP1664621A2 publication Critical patent/EP1664621A2/de
Application granted granted Critical
Publication of EP1664621B1 publication Critical patent/EP1664621B1/de
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
    • 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
    • F21V29/507—Cooling arrangements characterised by the adaptation for cooling of specific components of means for protecting lighting devices from damage, e.g. housings
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • F21S2/00—Systems of lighting devices, not provided for in main groups F21S4/00 - F21S10/00 or F21S19/00, e.g. of modular construction
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • F21S4/00—Lighting devices or systems using a string or strip of light sources
    • F21S4/20—Lighting devices or systems using a string or strip of light sources with light sources held by or within elongate supports
    • F21S4/28—Lighting devices or systems using a string or strip of light sources with light sources held by or within elongate supports rigid, e.g. LED bars
    • 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
    • F21V23/003—Arrangement of electric circuit elements in or on lighting devices the elements being electronics drivers or controllers for operating the light source, e.g. for a LED array
    • F21V23/007—Arrangement of electric circuit elements in or on lighting devices the elements being electronics drivers or controllers for operating the light source, e.g. for a LED array enclosed in a casing
    • F21V23/009—Arrangement of electric circuit elements in or on lighting devices the elements being electronics drivers or controllers for operating the light source, e.g. for a LED array enclosed in a casing the casing being inside the housing of the lighting device
    • 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
    • F21V23/06—Arrangement of electric circuit elements in or on lighting devices the elements being coupling devices, e.g. connectors
    • 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
    • F21V29/71—Cooling arrangements characterised by passive heat-dissipating elements, e.g. heat-sinks using a combination of separate elements interconnected by heat-conducting means, e.g. with heat pipes or thermally conductive bars between separate heat-sink elements
    • F21V29/713—Cooling arrangements characterised by passive heat-dissipating elements, e.g. heat-sinks using a combination of separate elements interconnected by heat-conducting means, e.g. with heat pipes or thermally conductive bars between separate heat-sink elements in direct thermal and mechanical contact of each other to form a single system
    • 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
    • F21V29/76—Cooling arrangements characterised by passive heat-dissipating elements, e.g. heat-sinks with fins or blades with essentially identical parallel planar fins or blades, e.g. with comb-like cross-section
    • F21V29/763—Cooling arrangements characterised by passive heat-dissipating elements, e.g. heat-sinks with fins or blades with essentially identical parallel planar fins or blades, e.g. with comb-like cross-section the planes containing the fins or blades having the direction of the light emitting axis
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B45/00—Circuit arrangements for operating light-emitting diodes [LED]
    • H05B45/30—Driver circuits
    • H05B45/37—Converter circuits
    • H05B45/3725—Switched mode power supply [SMPS]
    • 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
    • F21V21/005—Supporting, suspending, or attaching arrangements for lighting devices; Hand grips for several lighting devices in an end-to-end arrangement, i.e. light tracks
    • 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
    • F21Y2103/00—Elongate light sources, e.g. fluorescent tubes
    • F21Y2103/10—Elongate light sources, e.g. fluorescent tubes comprising a linear array of point-like light-generating elements
    • 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]
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R25/00—Coupling parts adapted for simultaneous co-operation with two or more identical counterparts, e.g. for distributing energy to two or more circuits
    • H01R25/16—Rails or bus-bars provided with a plurality of discrete connecting locations for counterparts
    • H01R25/161—Details
    • H01R25/162—Electrical connections between or with rails or bus-bars
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B45/00—Circuit arrangements for operating light-emitting diodes [LED]
    • H05B45/30—Driver circuits
    • H05B45/32—Pulse-control circuits
    • H05B45/325—Pulse-width modulation [PWM]

Definitions

  • the present invention relates to a bar of lights, of a type comprising a light source fitted with a plurality of LEDs (Light Emitting Diodes), a structure adapted for housing said light source and having a side open to allow the light beam generated by said light source to come out from said bar of lights, means adapted for controlling the operation of said light source, and means adapted for supplying said light source.
  • a light source fitted with a plurality of LEDs (Light Emitting Diodes)
  • a structure adapted for housing said light source and having a side open to allow the light beam generated by said light source to come out from said bar of lights
  • means adapted for controlling the operation of said light source means adapted for supplying said light source.
  • the known bars of lights comprising a light source fitted with a plurality of LEDs (Light Emitting Diodes) and that have an electronic circuit for controlling the operation of the light source, as well as a system for supplying said light source which are both located in a remote position with respect to the bar of lights.
  • LEDs Light Emitting Diodes
  • document US 2002/044456 Al relates to a luminaire comprising a housing which defines an internal space containing at least one light source formed by a light-emitting diode (LED) and optical means for guiding the light emitted by the LED to the exterior of the housing.
  • LED light-emitting diode
  • the system requires cables to carry the electric current required for the operation of the equipment, on the other hand it also requires additional cables to exchange information necessary to allow the electronic circuits to control the operation of the bar of the bar of lights and the control and supply system.
  • Each of said bars of lights is connected to the supply system and is positioned at a certain distance from the previous and the subsequent bars of lights.
  • Said bars of lights having a light source consisting of a plurality of LEDs use a device, located in the area of the open lateral portion of the bars of lights structure and made of an opaque material, which is adapted for reflecting and refracting the light produced by said plurality of LEDs in order to shed said light and consequently evenly distribute the light beam produced by the plurality of LEDs.
  • Said devices being made of an opaque material, are also used for hiding the punctiform light source consisting of the various LEDs used, so that the bars of lights looks like a common neon tube.
  • the main aim of the present invention is to provide a bars of lights manufactured in such a way as to incorporate the electronic parts within its structure through means adapted for preventing the internal components of said bars of lights from being overheated.
  • a further aim of the present invention is to provide a bars of lights manufactured in such a way to allow its connection to the adjacent bars of lights without the need of using cables for carrying electric current and exchanging information.
  • a further aim of the present invention is to provide a bars of lights manufactured in such a way to be able to evenly illuminate the areas surrounding the lighting system, consisting of a plurality of interconnected bars of lights.
  • a further aim of the present invention is to provide a bars of lights which is able to produce an evenly distributed light beam without the need of positioning, in the area of the open side of the bars of lights structure, any devices adapted for evenly distributing the light beam produced by the plurality of LEDs and for hiding the light source consisting of said plurality ofLEDs.
  • Fig. 1 and Fig. 2 show a bars of lights 1 incorporating the features of the present invention; it comprises a structure 2 and a light source 3, consisting of a plurality of LEDs 4.
  • Said structure 2 comprises inside of it a plate 8 which allows the exact positioning of said plurality of LEDs 4 as well as the electric (supply) and the electronic (control) connection of each LED 4.
  • Said plurality of LEDs 4 has an arrangement which is substantially linear (i.e. the LEDs 4 are positioned one next to the other), and the light it produces creates a light beam which may have either a diverging or a constant section as necessary, and which comes out of said bars of lights 1 through an open lateral portion 5 of the structure 2 of said bars of lights 1; the shape of the light beam section substantially depends on the shape of the reflector surrounding each LED 4.
  • the reflector surrounding each LED 4 consists of a collimator 6; through an appropriate arrangement of each LED 4 on said plate 8 and the use of a collimator 6 associated with each LED 4, the light beam produced by each LED 4 is correctly mixed with the light beams produced by the other LEDs 4, and the resulting light beam has a substantially evenly distributed basic colour, without the need of installing any devices adapted for shedding and evenly distributing the light produced by the plurality of LEDs 4 in the area of the open lateral portion 5 of the structure 2 of the bars of lights 1.
  • the shape of the section of said light beam may also be further modified by using a substantially flat transparent surface 7, positioned in the area of said open lateral portion 5; for instance, said transparent surface 7 may consist of flat lenses, convex lenses, "frost" lenses, etc., so that the light beam may be adapted to each specific application of the bars of light 1.
  • Said plurality of LEDs 4 is preferably composed of Red, Blue and Green LEDs 4, so as to provide, under the management of the control circuit, all colour shades; in fact, such basic colours of the LEDs 4 may be combined in many ways to generate the whole range of colours that can be perceived by the human eye.
  • a further possibility offered by the combination of the above-mentioned primary colours, with the addition of said Amber-coloured LEDs 4, consists in providing one or more corrections for changing the colour temperature, which allows the elimination certain colour temperature gradations before the resulting light beam comes out from said open lateral portion 5 of the structure 2 of said bars of lights 1.
  • Fig. 3 which shows a sectional side view of the bars of lights 1
  • a heatsink 9 having an array of blades 10.
  • Said heatsink 9 is in thermal contact with the plate 8 on which said plurality of LEDs 4 is located, and allows the dissipation of the heat produced by said plurality of LEDs 4 through the surface of said array of blades 10, which in turn are in contact with the structure 2 also acting as a heatsink, thus avoiding that the heat may increase the temperature within the structure 2 up to values which may cause damage to the electronic circuits 12 within the bars of lights 1.
  • blades 14 may be provided on the structure 2 of the bars of lights 1 in order to further dissipate the heat produced by the light source 3 made up of the plurality of LEDs 4.
  • said electronic circuits 12 and said electric components 13 are mounted in such a way to be shielded from the heat produced by said plurality of LEDs 4; in fact, they are turned in the opposite direction with respect to the direction of insertion of the LEDs 4 on the plate 8, thus allowing the heatsink 9 to act as a thermal shield against the heat generated by the plurality of LEDs 4.
  • the surface of said plate 11 is adapted for housing a plurality of power supplies and a microprocessor controlling the current supplied to the single LEDs 4 by said plurality of power supplies.
  • each power supply supplies a plurality of LEDs 4 having the same colour.
  • said power supplies are of the switching type and have a "cold" operation, i.e. dissipate little control current; this allows to optimize the consumption of mains voltage, as none of the components housed on the plate 11 has any considerable efficiency losses which may affect their operation.
  • the switching-type power supplies control the current supplied to the LEDs 4, so that it is possible to adjust the brightness by modulating the output current of said power supplies.
  • the microprocessor may be of the type known as Flash; it controls the current generated by the power supplies so as to vary the characteristics of the light beam produced by the LEDs 4, for example in terms of intensity control, colour and colour temperature, and allows to control functions which create special effects known as Strobo, Sincro and Delay.
  • the microprocessor uses the PWM (Pulse-Width Modulation) technique for controlling the output current of the power supplies; said microprocessor can also receive signals, for instance through DMX (Digital Multiplex) or DALI (Digital Addressable Lighting Interface) communication protocols.
  • PWM Pulse-Width Modulation
  • DMX Digital Multiplex
  • DALI Digital Addressable Lighting Interface
  • microprocessor Another characteristic of said microprocessor consists in the possibility of being programmed in place or at the factory for having the bars of lights 1 perform particular "shows".
  • connection means 15, 16, 17, 18, 19a, 20a, 19b, 20b manufactured in such a way to allow the interconnection of two or more bars of lights 1 through a "bayonet" type joint; in fact, each bars of lights 1 is provided with a first lid 15 on one end, and a second lid 16 on the other end.
  • the lid 15 comprises a male connector 17, adapted for being inserted into a female connector 18 incorporated in the lid 16 of a next bars of lights 1.
  • Said male connector 17 and female connector 18 each have two pairs of electric contacts 19a, 19b and 20a, 20b; a first electric connection takes place between the pair of electric contacts 19a of the male connector 17 and the pair of electric contacts 20a of the female connector 18.
  • Said pairs of electric contacts 19a, 20a are connected to the electric components 13 within the bars of lights 1 and are adapted for carrying the supply current from a bars of lights 1 to an adjacent bars of lights 1.
  • a second electric connection takes place between the pair of electric contacts 19b of the male connector 17 and the pair of electric contacts 20b of the female connector 18; said pairs of electric contacts 19b, 20b are connected to the electronic circuits 12 within the bars of lights 1 and are adapted for carrying the service signals from a bars of lights 1 to an adjacent bars of lights 1.
  • the male connector 17 and the female connector 18 allow to interconnect two or more bars of lights 1 without using additional cables.
  • the electric current can be carried from the power source to the plurality of bars of lights 1 connected in line to one another.
  • connection of the first bars of lights 1 of a plurality of bars of lights 1 to the power source is sufficient for supplying also the subsequent bars of lights 1, by simply connecting the male connector 17 of the bars of lights 1 to the female connector 18 of the adjacent bars of lights 1.
  • the electronic circuits 12 of every bars of lights 1 are also interconnected by means of said male connector 17 and female connector 18 positioned on said lids 15 and 16; therefore, the microprocessors contained within each bars of lights 1 can communicate with one another.
  • microprocessor being present in every bars of lights 1 can be programmed, in place or at the factory, so as to be able to manage a certain plurality of bars of lights 1 for having said plurality of bars of lights 1 perform particular "shows".
  • the microprocessor contained within one of the bars of lights 1 could act as a "master” for controlling one or more "slave” bars of lights 1 equipped with a microprocessor for information exchange.
  • each "slave" bars of lights 1 would therefore be in a condition to use the information received from the "master” bars of lights 1 for activating its own functions (e.g. turning on and adjusting the intensity of the light supplied to the LEDs 4, checking the intensity and colour of the light beam, checking and changing the colour temperature of the light beam, execution of a particular show by the plurality of bars of lights 1, etc.).
  • its own functions e.g. turning on and adjusting the intensity of the light supplied to the LEDs 4, checking the intensity and colour of the light beam, checking and changing the colour temperature of the light beam, execution of a particular show by the plurality of bars of lights 1, etc.
  • the communication among the various microprocessors may take place in any known way according to the prior art; for instance, if a conveyed wave system is used, the information for changing the characteristics of the light beam produced by the LEDs 4 can be exchanged on the same electric supply line. In such a case, the presence of the electric contacts 19b and 20b on the male connector 17 and on the female connector 18 is no longer necessary.
  • the integration of the electronic circuits 12 and of the electric components 13 within the structure 2 of the bars of lights 1 allows to realize synchronized combinations of the LEDs 4 of said bars of lights 1 without needing a remote control unit to control said bars of lights 1.
  • connection means 15, 16, 17, 18, 19a, 20a, 19b, 20b and the integration of the electronic circuits 12 and of the electric components 13 within the structure 2 of the bars of lights 1 allow to connect each bars of lights 1 to one or more adjacent bars of lights 1 without the need to use a wire harness for carrying the electric current and for exchanging information, as well as to shed a evenly distributed light on the areas surrounding said bars of lights 1, as the space between two adjacent bars of lights 1 is substantially null.
  • a further advantage of the present invention consists in the fact that the light beam produced by every bars of lights 1 is evenly distributed through a correct positioning of the LEDs 4 and through the use of collimators 6 associated with each LED 4, without requiring further devices for evenly distributing the light beam produced by the plurality of LEDs 4 and for hiding the light source 3 made up of said plurality of LEDs 4.
  • connection means 15, 16, 17, 18, 19a, 20a, 19b, 20b made in such a way to allow interconnection of a plurality of bars of lights 1 not only in a straight line, but also in such a way to form different angles between each bars of lights 1 and the next.
  • the lids 15 and 16 may have a substantially pyramidal shape with appropriate opening angles, or be of the "bellows" type.
  • Another possible modification consists in providing means adapted for facilitating the correct connection between the lid 15 on a bars of lights 1 and the lid 16 on an adjacent bars of lights 1; for example, said means may be one of the various known systems adapted for preventing an accidental wrong connection between the pairs of electric contacts 19a, 19b; 20a, 20b in the lids 15 and 16.
  • One of these known means may consist in providing, in a lid 15, 16, a protrusion (key) to be coupled with a corresponding hole in the other lid 15, 16.
  • a further possible modification consists in arranging the LEDs 4 according to a plurality of rows of LEDs 4, e.g. three rows, so that each of said rows of LEDs 4 has a substantially linear arrangement.

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Non-Portable Lighting Devices Or Systems Thereof (AREA)
  • Arrangement Of Elements, Cooling, Sealing, Or The Like Of Lighting Devices (AREA)
  • Led Device Packages (AREA)
  • Inorganic Insulating Materials (AREA)
  • Liquid Crystal (AREA)

Claims (32)

  1. Lichtstab des Typs, der aufweist:
    - eine Lichtquelle (3), die mit einer Vielzahl an LEDs (4) ausgestattet ist;
    - eine Platte (8), die eine exakte Positionierung der Vielzahl der LEDs (Light Emitting Diodes, Leuchtdioden) (4) wie auch die elektrische und elektronische Verbindung jeder einzelnen LED (4) erlaubt;
    - eine Konstruktion (2), die zur Aufnahme der Lichtquelle (3) ausgebildet ist und ein offenes Seitenteil (5) aufweist, um dem von der Lichtquelle (3) erzeugten Lichtstrahl das Ausstrahlen von dem Lichtstab zu ermöglichen;
    - Mittel (9, 10, 14) zum Abführen der von der Lichtquelle (2) erzeugten Wärme, ein Wärmeableitblech (9) aufweisend, wobei das Wärmeableitblech (9) in thermischer Verbindung mit der Platte (8) und der Konstruktion (2) steht;
    dadurch gekennzeichnet, dass in der Konstruktion (2) integriert sind:
    - eine elektrische Schaltung (12) angepasst zum Steuern des Betriebs der Lichtquelle, wobei die elektronischen Schaltungen (12) einen Mikroprozessor enthalten, der zur Aufnahme und/oder dem Übertragen digitaler Signale geeignet ist;
    - elektrische Komponenten (13) zum Versorgen der Lichtquelle (3) unter der Steuerung der digitalen Signale des Mikroprozessors angepasst sind;
    und darin, dass die elektrischen Komponenten (13) und die elektronischen Schaltungen (12), die auf einer zweiten Platte (11) befestigt sind, unter einem Wärmeleitblech (9) positioniert sind, und in der abgewandten Richtung bezüglich der Einfügerichtung der Vielzahl der LEDs (4) auf der Platte (8) herumgedreht sind, dergestalt, dass sie von der von der Vielzahl der LEDs (4) erzeugten Wärme abgeschirmt sind, und das Wärmeableitblech (9) eine Reihe von Lamellen (10) und zusätzliche Reihen von Lamellen (14) auf der Konstruktion (2) des Stabs mit Lichtern (1) aufweist.
  2. Lichtstab (1) gemäß Anspruch 1, dadurch gekennzeichnet, dass es auf der Seite abgewandt zum offenen Seitenteil (5) der Konstruktion (2) einige Öffnungen gibt, die zur Kühlung des Bereichs beitragen, in dem die elektrischen Komponenten befestigt sind.
  3. Lichtstab (1) gemäß einem oder mehreren der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass die Verbindungsmittel (15, 16, 17, 18, 19a, 19b, 20a, 20b) vorgesehen sind, um einen Lichtstab (1) mit anderen benachbarten Lichtstäben (1) zu verbinden.
  4. Lichtstab (1) gemäß Anspruch 3, dadurch gekennzeichnet, dass die Verbindungsmittel (15, 16, 17, 18, 19a, 19b, 20a, 20b) Abdeckungen (15, 16) aufweisen.
  5. Lichtstab (1) gemäß Anspruch 4, dadurch gekennzeichnet, dass die Abdeckung (15) einen Stecker (17) umfasst.
  6. Lichtstab (1) gemäß Anspruch 5, dadurch gekennzeichnet, dass der Stecker (17) zwei elektrische Kontaktpaare (19a, 19b) aufweist.
  7. Lichtstab (1) gemäß Anspruch 4, dadurch gekennzeichnet, dass die Abdeckung (16) eine Anschlussbuchse (18) aufweist.
  8. Lichtstab (1) gemäß Anspruch 5 bis 7, dadurch gekennzeichnet, dass die Anschlussbuchse (18) zwei elektrische Kontaktpaare (20a, 20b) aufweist.
  9. Lichtstab (1) gemäß den Ansprüchen 6 und 8, dadurch gekennzeichnet, dass die Paare elektrischer Kontakte (19a, 20a) mit den elektrischen Komponenten (13) in jedem Lichtstab (1) verbunden sind und vorbereitet sind, um den Versorgungsstrom von einem Lichtstab (1) an einen benachbarten Lichtstab (1) zu übertragen.
  10. Lichtstab (1) gemäß den Ansprüchen 6 und 8, dadurch gekennzeichnet, dass die elektrischen Kontaktpaare (19b, 20b) mit den elektrischen Schaltungen (12) in jedem Lichtstab (1) verbunden sind und vorbereitet sind, um die Servicesignale von einem Lichtstab (1) an einen benachbarten Lichtstab (1) zu übertragen.
  11. Lichtstab (1) gemäß den Ansprüchen 3 bis 10, dadurch gekennzeichnet, dass die Information, die zum Ändern von Eigenschaften des von den LEDs (4) erzeugten Lichtstrahls (4) angepasst ist, auf derselben elektrischen Leitung durch ein System übertragener Wellen ausgetauscht werden kann.
  12. Lichtstab (1) gemäß den Ansprüchen 5 und 7, dadurch gekennzeichnet, dass der Stecker (17) und die Anschlussbuchse (18) nur die elektrischen Kontaktpaare (19a, 20a) enthalten, die zum Übertragen des Versorgungsstroms von einem Lichtstab (1) an einen benachbarten Lichtstab (1) vorbereitet sind.
  13. Lichtstab (1) gemäß Anspruch 1, dadurch gekennzeichnet, dass Mittel (6, 8) vorgesehen sind zum Leuchten und gleichmäßigen Verteilen des Lichts, das von einer Vielzahl an LEDs (4) erzeugt wird.
  14. Lichtstab (1) gemäß Anspruch 13, dadurch gekennzeichnet, dass Mittel (6, 8), die zum Leuchten und gleichmäßigen Verteilen des von einer Vielzahl an LEDs (4) erzeugten Lichts angepasst sind, einen mit jeder LED (4) verknüpften Kollimator (6) aufweisen.
  15. Lichtstab (1) gemäß Anspruch 1, dadurch gekennzeichnet, dass der Mikroprozessor ein als Flash bekannter Typ ist.
  16. Lichtstab (1) gemäß Anspruch 1, dadurch gekennzeichnet, dass der Mikroprozessor den Strom steuert, der von den elektrischen Komponenten (13) generiert wird, um so die Eigenschaften des Lichtstrahls zu variieren, der von den LEDs (4) erzeugt wird.
  17. Lichtstab (1) gemäß Anspruch 1, dadurch gekennzeichnet, dass der Mikroprozessor eine Pulsdauermodulations (PDM)-Technik zur Steuerung des Ausgangsstroms von den elektrischen Komponenten (13) verwendet, der eine Vielzahl an LEDs (4) versorgt.
  18. Lichtstab (1) gemäß Anspruch 1, dadurch gekennzeichnet, dass der Mikroprozessor DMX- oder DALI-Signale empfangen und/oder übertragen kann.
  19. Lichtstab (1) gemäß Anspruch 1, dadurch gekennzeichnet, dass der Mikroprozessor eine Vielzahl an Lichtstäben (1) verwalten kann.
  20. Lichtstab (1) gemäß Anspruch 1, dadurch gekennzeichnet, dass der Mikroprozessor vor Ort oder werkseitig programmiert werden kann.
  21. Lichtstab (1) gemäß Anspruch 1, dadurch gekennzeichnet, dass der Mikroprozessor die Steuerung von Funktionen erlaubt, die Spezialeffekte erstellen, im Besonderen Effekte wie Strobo, Syncro und Verzögerung (Delay).
  22. Lichtstab (1) gemäß Anspruch 1, dadurch gekennzeichnet, dass die elektrischen Komponenten (13) wenigstens eine unterschiedliche Stromversorgung für jeden Typ von Primärfarbe der LEDs (4) aufweisen.
  23. Lichtstab (1) gemäß Anspruch 1, dadurch gekennzeichnet, dass die elektrischen Komponenten (13) Stromversorgungen des Umschalttyps aufweisen.
  24. Lichtstab (1) gemäß Anspruch 23, dadurch gekennzeichnet, dass die Stromversorgung des Umschalttyps die LEDs (4) unter der Steuerung des Mikroprozessors mit einem variablen Stromwert versorgen.
  25. Lichtstab (1) gemäß einem oder mehreren der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass die Vielzahl der LEDs (4) eine im Wesentliche lineare Anordnung aufweist.
  26. Lichtstab (1) gemäß einem oder mehreren der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass die Vielzahl der LEDs (4) aus roten, grünen und blauen LEDs (4) besteht.
  27. Lichtstab (1) gemäß Anspruch 26, dadurch gekennzeichnet, dass die LEDs (4) mit unterschiedlichen Grundfarben zu den roten, grünen und blauen LEDs (4) hinzugefügt werden.
  28. Lichtstab (1) gemäß Anspruch 27, dadurch gekennzeichnet, dass die LEDs (4) mit unterschiedlichen Grundfarben gelbfarbige LEDs (4) sind.
  29. Lichtstab (1) gemäß einem oder mehreren der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass Mittel vorgesehen sind, um die korrekte Verbindung zwischen einer Abdeckung (15), die auf einem Lichtstab (1) angeordnet ist, und einer Abdeckung (16) auf einem benachbarten Lichtstab (1) zu ermöglichen.
  30. Lichtstab (1) gemäß Anspruch 29, dadurch gekennzeichnet, dass Mittel zum Bereitstellen eines Vorsprungs auf einer Abdeckung (15, 16) bestehen, um mit einer zugehörigen Aussparung in der anderen Abdeckung (15, 16) verbindbar zu sein.
  31. Lichtstab (1) gemäß einem oder mehreren der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass der Schnitt des Lichtstrahls modifiziert wird, indem eine im Wesentlichen flache transparente Fläche (7) verwendet wird.
  32. Lichtstab (1) gemäß einem oder mehreren der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass die Verbindungsmittel (15, 16, 17, 18, 19a, 20a, 19b, 20b) dergestalt hergestellt sind, dass die Verbindung einer Vielzahl an Lichtstäben (1) nicht nur in einer geraden Linie möglich ist, sondern auch in einer Weise, dass Winkel verschiedener Größe zwischen einem jeden Lichtstab (1) und dem nächsten gebildet werden können.
EP04769180A 2003-09-04 2004-08-26 Mit leuchtdioden versehener stab Not-in-force EP1664621B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
IT000673A ITTO20030673A1 (it) 2003-09-04 2003-09-04 Barra di luce a led.
PCT/IB2004/002756 WO2005024291A2 (en) 2003-09-04 2004-08-26 Bar provided with led light

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EP1664621A2 EP1664621A2 (de) 2006-06-07
EP1664621B1 true EP1664621B1 (de) 2009-03-04

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AT (1) ATE424533T1 (de)
DE (1) DE602004019796D1 (de)
IT (1) ITTO20030673A1 (de)
WO (1) WO2005024291A2 (de)

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ATE424533T1 (de) 2009-03-15
DE602004019796D1 (de) 2009-04-16
WO2005024291A2 (en) 2005-03-17
EP1664621A2 (de) 2006-06-07
ITTO20030673A1 (it) 2005-03-05
WO2005024291A3 (en) 2005-06-02

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