EP3583353B1 - Projecteur à del de haute performance, et système de projection comprenant ce projecteur pour éclairer des terrains sportifs - Google Patents

Projecteur à del de haute performance, et système de projection comprenant ce projecteur pour éclairer des terrains sportifs Download PDF

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Publication number
EP3583353B1
EP3583353B1 EP18712790.7A EP18712790A EP3583353B1 EP 3583353 B1 EP3583353 B1 EP 3583353B1 EP 18712790 A EP18712790 A EP 18712790A EP 3583353 B1 EP3583353 B1 EP 3583353B1
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Prior art keywords
led
floodlight
sports field
carrier
emitters
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EP18712790.7A
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German (de)
English (en)
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EP3583353A1 (fr
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Rüdiger Lanz
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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
    • F21V21/00—Supporting, suspending, or attaching arrangements for lighting devices; Hand grips
    • F21V21/14—Adjustable mountings
    • F21V21/26—Pivoted arms
    • F21V21/28—Pivoted arms adjustable in more than one plane
    • 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
    • F21S8/08—Lighting devices intended for fixed installation with a standard
    • F21S8/085—Lighting devices intended for fixed installation with a standard of high-built type, e.g. street light
    • 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
    • F21V21/14—Adjustable mountings
    • F21V21/30—Pivoted housings or frames
    • 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
    • F21V29/77—Cooling arrangements characterised by passive heat-dissipating elements, e.g. heat-sinks with fins or blades with essentially identical diverging planar fins or blades, e.g. with fan-like or star-like cross-section
    • F21V29/773—Cooling arrangements characterised by passive heat-dissipating elements, e.g. heat-sinks with fins or blades with essentially identical diverging planar fins or blades, e.g. with fan-like or star-like cross-section the planes containing the fins or blades having the direction of the light emitting axis
    • 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
    • F21V7/0066—Reflectors for light sources specially adapted to cooperate with point like light sources; specially adapted to cooperate with light sources the shape of which is unspecified
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21W—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO USES OR APPLICATIONS OF LIGHTING DEVICES OR SYSTEMS
    • F21W2131/00—Use or application of lighting devices or systems not provided for in codes F21W2102/00-F21W2121/00
    • F21W2131/10—Outdoor lighting
    • F21W2131/105—Outdoor lighting of arenas or the like
    • 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 present application relates to high-performance LED floodlight luminaires and floodlight systems using them according to the preamble of claim 1.
  • lighting class III in particular is the most frequently implemented, since it involves lighting systems that are very widespread in a large number of regional sports facilities. In terms of numbers, this is a multiple of the sports field lighting systems that are created and operated at the highest level of requirements, for example for stadiums of the German football league.
  • the German Football League also stipulates license requirements for floodlight systems for stadiums in the 1st and 2nd Congress.
  • a minimum illuminance is defined here at a height of 1.5 m above the playing field.
  • the corresponding requirements for the required minimum illuminance levels have changed in recent years towards stronger illuminance levels, as the increasing demands on imaging media transmissions, for example with regard to slow-motion reproductions, require high light levels.
  • Lighting requirements for HDTV for example, require a minimum illuminance of 2000 lux.
  • Further specifications are made, for example, by the European Football Association (UEFA) and the World Football Association (FIFA). There are specific requirements with regard to the minimum illuminance of competitions in connection with UEFA, such as the graduates League or the European Cup.
  • the standardization today is that 8 lamps are attached to these, for example 6 floodlight masts. This means in each corner, or 17 meters from each corner, a floodlight on a floodlight mast and 2 floodlights on each of the middle floodlight masts. In this way, 4 strong lights shine from each side of the soccer field onto the field to illuminate it. In many cases the corners are only sparsely lit here.
  • the primary aim here is to reduce the power consumption with the highest possible output, with a long service life for the lamps and low maintenance intensity being sought.
  • a lighting device which comprises a plurality of modular devices, each modular device comprising one or more light sources and one or more light directing or light deflecting devices.
  • Methods for adjusting one or more components of the luminaire around one, two or three axes are presented, whereby the lighting needs of a target area, even with a complex shape, can be addressed in such a way that the target area is adequately illuminated with increased glare control and increased light uniformity can compare to at least most conventional headlights for sports lighting applications.
  • a large number of identical lamp bodies are mounted on the support frame, in the exemplary illustration in FIG Figure 1
  • the framework carrying these lights is statically designed in a construction plane and the lights are aligned using a pivotable bracket on the rear of the lamp. It is noticeable that it is primarily aimed at achieving a high light output through the mass of luminaires. This is a very energy-intensive system, as the large number of lights consumes corresponding watts.
  • US 2006/0245189 A1 discloses a floodlight arrangement which discloses an arrangement of spotlights on floodlight masts.
  • the inventive disclosure concept in this document is a special method for aligning these lighting means in a specific shape.
  • the background here is that a large number of concentrated LED beams are to be recorded in this way in order to align them optimally, whereby the number of spotlights that are required to achieve a defined lighting task is to be minimized.
  • the method disclosed here integrated in computer-controlled calculation models, is intended to improve and support this project planning by measuring at certain target points.
  • a specific structural design of a floodlight system that can advantageously ensure that a sports facility is illuminated, for example, is therefore not the aim of the disclosure here.
  • LED floodlights are arranged on the existing or similarly newly erected floodlight masts, which are not designed as a single high-intensity spotlight in the sense of the state of the art, but rather the LED spotlights that illuminate the sports field with articulated LED spotlights exist, which are additionally directed in particular into the corners and to the outer lines of the playing field in order to be able to achieve a required light intensity in the areas that are only weakly illuminated in the prior art.
  • a corresponding exemplary diagram of the illumination will be explained in more detail later with a view to the graphic representation.
  • the inventive concept of the floodlight system provides that the novel floodlight comprises LED spotlights that can be aligned in different ways and can be arranged at the usual attachment points on the floodlight mast via a common support structure carrying the individual LED lights.
  • the LED spotlights involved have a single high-performance LED chip as a light source and not a large number of individual LEDs arranged flatly next to one another, as is the case in the prior art, for example US 2015/0308655 A1 is revealed.
  • These flat individual LED arrangements used in the prior art also require plastic lenses or lens arrays arranged in the manner of a mat, which are assigned to the respective individual LED, or as in the case of the US 2015/0308655 A1 of Fresnel lenses. In a negative way, this leads to color shifts in the edge area into greenish tones, which have a negative effect on the emitted light.
  • LED spotlights forming the floodlight can be built very compactly.
  • the LED chips are in a stable housing with a reflector optic in front of them and a front pane that closes the spotlight and sits on the reflector, both in terms of mechanical damage, as well as in terms of soiling and the effects of the weather, are significantly better protected than in known floodlights with LED lights. Illuminants is the case. This in turn results in a longer service life of the LED chips as lighting means and thus a further improvement in the economic efficiency of these floodlights in relation to previous solutions as well as alternative LED floodlights.
  • the combination of LED chip and reflector optics has another key advantage that is particularly relevant in the field of floodlights. Since the floodlight lighting should enable the sports field to be used by active athletes as well as the view of the audience at the edge of the sports field or on grandstands, it is a central concern to minimize the glare from the floodlights for both groups.
  • the previously widespread flat arrangements of a multitude of LEDs with pre-attached plastic lenses are very disadvantageous, since those involved are greatly dazzled when they look at the floodlights, as they look directly at the LED lamps.
  • the arrangement according to the invention has the effect that the extremely bright LED chips are set back in the LED spotlight, and the reflector optics that are placed in front thus reduce the direct view of the LED illuminant.
  • Targeted scattering or bundling, depending on the alignment of the LED spotlight, is consciously achieved through the choice of suitable reflector optics, whereby the glare of active people and spectators can be significantly reduced.
  • each LED floodlight comprises 4 LED spotlights, which are formed as described at least from a housing), a heat sink, reflector optics and a high-performance LED chip, the LED spotlights on in pairs a support frame are arranged with articulated connections.
  • an upper pair of LED spotlights is formed, which is seated in parallel on a common carrier element and is provided with reflector optics that produce a narrow beam angle, so that the light emission from this pair of LED spotlights is aligned in the same direction and thus covers longer distances. to reach the middle area of the sports field.
  • the arrangement above the second, lower pair of LED spotlights was deliberately chosen, as the lower pair should cover areas near the floodlight mast and could not radiate freely with an arrangement above.
  • a lower pair of LED spotlights in contrast to the upper pair, which is statically aligned in parallel, is now placed on a separately alignable support element and is provided with reflector optics that cause a wide beam angle, so that the light emission of this pair of LED spotlights can be aligned separately from one another for targeted illumination the areas of the sports field near the edge that are closer to the floodlight mast.
  • the wider radiation angle means that these areas near the mast can be broadcast over the comparatively short distance.
  • the upper LED spotlight pair has a narrow beam angle between about 7 ° and 25 ° for the long distance due to the housing with reflector optics and the LED spotlights forming the lower LED spotlight pair have a wide beam angle for the short distance between about 40 ° and 60 °. In this way, the mentioned illumination is possible in a targeted manner.
  • a cross member is arranged on an approximately U-shaped base beam that is to be attached to the floodlight mast, which carries a paired arrangement of two LED spotlights, which can only be changed about a pivot axis in their beam angle on the sports field.
  • this arrangement there is at least one more articulated bracket that carries, for example, two additional LED spotlights that can be pivoted independently of one another and independently of the paired LED spotlights in two joint planes, which is why they are aligned to any point on the sports field can.
  • a special conceptual alignment of the Lights are provided in order to be able to optimize the uniform distribution on the sports field through an advantageous overlap of the light fields formed from the individual emissions.
  • An alternative design of the floodlight system provides that special support frame arrangements of the floodlight luminaires are pre-conceptualized in such a way that the exact alignment to the sports field is achieved without later alignment of the individual luminaires on the support frame. This is specified by the parameters of the exact arrangement of the floodlight masts on the side edges of the sports field, the height of the arrangement of the floodlight lamps on the corresponding floodlight masts and the general limitation or size of the sports field itself.
  • the invention provides for the special angles of the individual LED spotlights of the floodlight lamps to be pre-conceptualized so that the floodlight lamps, can be attached to the defined points of the floodlight masts with the differently aligned LED spotlights without further adjustment.
  • this floodlight system results in several different, preconceived support frames for these floodlights.
  • the floodlight system according to the invention eliminates the loss of light radiation that is usual in the prior art, which either illuminates areas of the sports field that are already sufficiently illuminated or that are over radiate out the outer edges of the sports field to be illuminated, minimized. It also plays a role here that it is provided according to the invention that the different LED spotlights that work together in a floodlight can also be made up differently in terms of both their light output and their optics. According to the invention, therefore, different reflectors are used in the LED spotlights that are commonly used in a floodlight.
  • an LED spotlight that radiates comparatively steeply downward into a corner of the sports field on the corner mast of the floodlight system has a different light intensity and diffusion properties than an LED spotlight used in the same floodlight that is centered on the field.
  • FIG. 2 to 4 relate to the high-performance LED floodlight 1 according to the invention and the support frame newly developed for this.
  • the Figures 2 and 3 also show the mounted LED spotlights, whereby in this design 4 LED spotlights are articulated on the carrier frame.
  • These LED spotlights are formed from a rear heat sink 5, to which a housing 6 is connected, in which the LED chip (not shown) and the reflector optics are arranged in front of it.
  • This structural unit is closed by a front panel 7, whereby the LED spotlight can be designed to be completely closed, but the heat dissipation from the LED chip is fully secured by the heat sink directly attached to the back.
  • these LED emitters are now mounted on carrier elements 4 and 4 ', with the carrier element 4 carrying two parallel LED emitters and the two further carrier elements 4' each carrying an LED emitter, with the carrier elements 4 'being pivotable independently of one another are trained.
  • the carrier element 4 is in this case articulated to the side of the free ends of a U-shaped base body 3 of the carrier frame, and is held by screws 10 in the illustration.
  • the first carrier element 4 and the LED spotlights arranged on it can accordingly be pivoted about a pivot axis towards the sports field.
  • the second carrier elements 4 ' are also guided on the first carrier element 4, but compared to its pivoting movement they can be further aligned about two further pivot axes.
  • a support arm 12 which is attached to the rear of the first support element or which forms a structural unit with it.
  • support bodies 13 are pivotably articulated in the first articulated connection 11, in the design shown by means of bores in the free end of the support arm 12 and in the support bodies 13, which are connected to the first articulated connection 11 by means of a connecting screw.
  • the two individual LED spotlights on the second support elements 13 have a further pivot axis on a second articulated connection 8 between the second carrier elements 4 'and the carrier body 13, which is offset by 90 ° in the illustrated design with respect to the first articulated connection 11. This ensures that these two individual LED spotlights have sufficient degrees of freedom to be able to direct them to any point on the sports field to be illuminated.
  • the carrier elements 4 and 4 ′ have holes at the rear in order to be able to cabling the LED emitters through the heat sinks 5.
  • the LED spotlight housing 6 can be installed in different designs in a floodlight. For this, it becomes clear from the numbers 6 'and 6 "that the housing 6" is built significantly shorter. Thus, the reflector used is also built much flatter and thus has different radiation properties compared to the reflector that is built into the housing 6 '. In this way, by choosing different designs of LED spotlights in terms of reflectors, housings and LED chips, different light emissions can be realized in a floodlight, which are also aligned differently, which illustrates the great degree of variability of these floodlights.
  • FIG. 5 shows 2 opposing, centrally arranged floodlight masts A and 4 floodlight masts B arranged close to the corner.
  • radiators 14 are arranged in parallel with 2 pairs of radiators 15 and have corresponding reflector housings, which enable radiation over a longer distance due to the mutual reinforcement and a narrower reflector optics. Since there are 2 such pairs 15 on a floodlight pole B in the corner of the square, there are also 2 long arrows 17 emanating from this pole B, which radiate into the center of the playing field and thus illuminate the central field area.
  • the middle masts A are exactly doubled in relation to the corner masts BDh, on a central mast A there are 4 of these according to the invention
  • Floodlights 1 arranged, which is why long arrows starting from a central mast A in the lighting scheme 4 17 and 8 short arrows 18 are present, which partially cover the middle field and partially the edge area of the playing field.
  • This lighting scheme illustrates the great strength of the floodlight lighting concept according to the invention, since the light emission can be achieved with a very manageable number of LED high-performance lights, since these are individualized both in terms of their radiation properties and their alignment on the playing field and thus What is achieved is that there are no redundancies in radiation in areas in which there is basically already sufficient light quality and, conversely, edge areas and areas that are just as important and should be treated the same, such as the center of the field, are not neglected.

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Non-Portable Lighting Devices Or Systems Thereof (AREA)
  • Arrangement Of Elements, Cooling, Sealing, Or The Like Of Lighting Devices (AREA)

Claims (9)

  1. Projecteurs à LED à haute performance (1) destinés à être disposés sur des mâts de projecteur (2) au niveau des bords latéraux d'un terrain de sport pour éclairer celui-ci,
    - chaque projecteur à LED (1) comprenant 4 lampes à LED (14) qui sont formées au moins d'un boîtier (6), d'un dissipateur thermique (5), d'une optique à réflecteur et d'une puce de LED à haute performance,
    - les lampes à LED (14) étant disposées par paires sur un cadre de support pourvu de liaisons articulées,
    - une paire de lampes à LED supérieure (15) étant placée en parallèle sur un élément de support commun (4) et étant pourvue d'une optique à réflecteur qui génère un angle de faisceau étroit de manière à amplifier l'émission de lumière de cette paire de lampes à LED (15) lorsqu'elles sont orientées dans la même direction et à dominer d'autres sections pour atteindre la zone centrale du terrain de sport,
    - alors qu'une paire de lampes à LED inférieure (16) est placée sur un élément de support (4') pouvant être orienté séparément et est pourvue d'une optique à réflecteur qui génère un angle de faisceau large de manière à pouvoir orienter l'émission de lumière de cette paire de lampes à LED (16) séparément pour éclairer de manière ciblée les zones en bordure du terrain de sport qui sont proches du mât de projecteur.
  2. Projecteurs à LED à haute performance selon la revendication 1,
    caractérisés en ce que
    les lampes à LED (14) formant les projecteurs à LED à haute performance (1) ont différentes puissances et/ou conceptions de boîtier et/ou des réflecteurs et/ou des puces de LED.
  3. Projecteurs à LED à haute performance selon la revendication 1 ou 2,
    caractérisés en ce que
    les lampes à LED (14) formant un projecteur à LED à haute performance (1) peuvent être commandées individuellement et/ou par paires quant à leur puissance et la couleur de lumière de LED émise par le biais d'une électronique de commande associée à la lampe de LED respective.
  4. Projecteurs à LED à haute performance selon l'une des revendications précédentes,
    caractérisés en ce que
    le cadre de support comporte un corps de base (3) approximativement en forme de U, les lampes à LED (14) étant disposées de manière pivotante et articulée sur les éléments de support individuels et communs (4, 4') approximativement aux deux extrémités libres du corps de base (3) approximativement en forme de U.
  5. Projecteurs à LED à haute performance (1} selon l'une des revendications précédentes,
    caractérisés en ce que
    les deux lampes à LED (14} formant la paire de lampes à LED supérieure (15) sont disposées sur un premier élément de support commun (4) qui est fixé de manière articulé au corps de base (3) approximativement en forme de U et sur lequel est disposé un bras de support (12) ou un prolongement de support sur lequel sont disposés deux autres éléments de support (4') de manière pivotante sur lesquels les lampes à LED (14) formant la paire de lampes à LED inférieure (16) sont également fixées de manière pivotante de manière à ce que l'orientation de ces lampes à LED inférieures (14) soit effectuée selon deux axes de pivotement.
  6. Projecteurs à LED à haute performance selon la revendication 5,
    caractérisés en ce que
    au moins deux corps de support (13) sont disposés sur le bras de support (12) de manière à pouvoir pivoter sur un axe de pivotement commun, les lampes à LED (14) étant fixées à des deuxièmes éléments de support (4') qui sont fixés à ces corps de support (13) de manière à pouvoir pivoter sur un deuxième axe de pivotement décalé d'environ 90° par rapport au premier axe de pivotement.
  7. Projecteurs à LED à haute performance selon l'une des revendications précédentes,
    caractérisés en ce que
    la paire de lampes à LED supérieure (15) a un angle de faisceau étroit entre environ 7° et 25° pour la longue distance par le biais du boîtier utilisé pourvu de l'optique à réflecteur et les lampes à LED (14) formant la paire de lampes à LED inférieure (16) ont un angle de faisceau large entre environ 40° et 60° pour la courte distance.
  8. Système de projecteurs destiné à éclairer des terrains de sport et comprenant des projecteurs à LED (1) à haute performance selon les revendications précédentes,
    caractérisé en ce que
    - le système de projecteurs est disposé sur au moins 4 mâts de projecteurs entourant le terrain de sport, ces 4 mâts de projecteurs étant répartis uniformément aux angles et/ou aux bords longitudinaux du terrain de sport,
    - au moins 16 projecteurs à LED (1) pourvus chacun d'au moins 4 lampes à LED intégrées (14) et des traverses étant disposés sur les mâts de projecteurs.
  9. Système de projecteurs destiné à éclairer des terrains de sport et comprenant des projecteurs à LED à haute performance selon la revendication 8 précédente, caractérisé en ce que
    - le système de projecteurs est disposé sur au moins 6 mâts de projecteurs (2) entourant le terrain de sport, ces 6 mâts de projecteurs (2) étant répartis régulièrement le long des bords longitudinaux du terrain de sport,
    - 2 projecteurs à LED (1) pourvus chacun d'au moins 4 lampes à LED intégrées (14) étant disposés sur les 4 mâts de projecteurs (2) associés aux coins du terrain de sport, et
    - 4 projecteurs à LED (1) étant disposés sur chacun des traverses sur les 2 mâts de projecteurs (2) disposés de part et d'autre à peu près au niveau de la ligne médiane du terrain de sport.
EP18712790.7A 2017-02-16 2018-02-16 Projecteur à del de haute performance, et système de projection comprenant ce projecteur pour éclairer des terrains sportifs Active EP3583353B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102017103256.8A DE102017103256A1 (de) 2017-02-16 2017-02-16 Hochleistungs-LED-Flutlichtleuchten sowie diese verwendende Flutlichtanlagen zur Beleuchtung von Sportplätzen
PCT/DE2018/100142 WO2018149457A1 (fr) 2017-02-16 2018-02-16 Lampes à projecteurs à del à haute puissance et installations de projecteurs les utilisant pour l'éclairage de terrains de sport

Publications (2)

Publication Number Publication Date
EP3583353A1 EP3583353A1 (fr) 2019-12-25
EP3583353B1 true EP3583353B1 (fr) 2020-11-25

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US (1) US11054099B2 (fr)
EP (1) EP3583353B1 (fr)
CN (1) CN110520672B (fr)
DE (1) DE102017103256A1 (fr)
ES (1) ES2860073T3 (fr)
WO (1) WO2018149457A1 (fr)

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Publication number Publication date
WO2018149457A1 (fr) 2018-08-23
DE102017103256A1 (de) 2018-08-16
ES2860073T3 (es) 2021-10-04
EP3583353A1 (fr) 2019-12-25
CN110520672A (zh) 2019-11-29
CN110520672B (zh) 2021-06-22
US20200049319A1 (en) 2020-02-13
US11054099B2 (en) 2021-07-06

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