EP2808600B1 - Omnidirectional air field light - Google Patents
Omnidirectional air field light Download PDFInfo
- Publication number
- EP2808600B1 EP2808600B1 EP13169333.5A EP13169333A EP2808600B1 EP 2808600 B1 EP2808600 B1 EP 2808600B1 EP 13169333 A EP13169333 A EP 13169333A EP 2808600 B1 EP2808600 B1 EP 2808600B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- light
- luminous
- optic
- luminous element
- optic element
- 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.)
- Active
Links
- 230000003287 optical effect Effects 0.000 claims description 50
- 230000005855 radiation Effects 0.000 claims description 5
- 241000237942 Conidae Species 0.000 claims 1
- 238000005286 illumination Methods 0.000 description 4
- 238000010276 construction Methods 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
Images
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
- F21V5/00—Refractors for light sources
- F21V5/04—Refractors for light sources of lens shape
- F21V5/045—Refractors for light sources of lens shape the lens having discontinuous faces, e.g. Fresnel lenses
-
- 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
- F21W2111/00—Use or application of lighting devices or systems for signalling, marking or indicating, not provided for in codes F21W2102/00 – F21W2107/00
- F21W2111/06—Use or application of lighting devices or systems for signalling, marking or indicating, not provided for in codes F21W2102/00 – F21W2107/00 for aircraft runways 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]
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Non-Portable Lighting Devices Or Systems Thereof (AREA)
Description
Die Erfindung betrifft eine Umlichtleuchte für die Flugfeldbeleuchtung umfassend wenigstens ein Leuchtelement zum Abstrahlen von Licht und wenigstens ein dem Leuchtelement zugeordnetes Optikelement zum Umlenken des Lichts in eine Lichtaustrittshauptebene.The invention relates to an ambient light for airfield lighting comprising at least one luminous element for emitting light and at least one optical element associated with the luminous element for deflecting the light into a light exit main plane.
Aus der
Eine weitere Leuchte ist aus der
Aus der
Aufgabe der Erfindung ist es, eine optisch hochwirksame Umfeldleuchte für die Flugfeldbeleuchtung anzugeben, welche eine homogene Ausleuchtung in Bezug auf eine Lichtaustrittshauptebene gewährleistet und dabei kostengünstig und einfach im Aufbau ist.The object of the invention is to provide an optically highly effective ambient light for airfield lighting, which ensures a homogeneous illumination with respect to a main light exit plane and is inexpensive and simple in construction.
Zur Lösung der Aufgabe ist die Erfindung in Verbindung mit dem Oberbegriff des Patentanspruchs 1 dadurch gekennzeichnet, dass auf einer dem Leuchtelement zugewandten Rückseite weist das Optikelement die Ausnehmung auf, wobei eine Mantelfläche der Ausnehmung ist als Lichteintrittsfläche des Optikelements ausgebildet ist, die Lichteintrittsfläche wird aus einer Mehrzahl von Teilflächen gebildet, von denen je ein zylindersegmentmantelförmig, kugelsegmentmantelförmig, kegelstumpfsegmentmantelförmig beziehungsweise eben ist, die Lichtaustrittsfläche wird von zwei konvex gekrümmte Teilflächen gebildet, wobei die konvex gekrümmte Teilflächen eine gemeinsame Verbindungskante aufweisen und die Verbindungskante sich in die Lichtaustrittshauptebene der Umlichtleuchte erstreckt und so dass die Lichteintrittsfläche des Optikelements und/oder die Lichtaustrittsfläche des Optikelements derart geformt und/oder positioniert sind und/oder dass das Leuchtelement dem Optikelement derart zugeordnet ist, dass von dem Leuchtelement abgestrahltes Licht und von dem Optikelement von der optischen Achse nach außen umgelenktes Licht in der Lichtaustrittshauptebene einen horizontalen Winkelbereich von -95° bis +95° in Bezug auf die Hauptabstrahlrichtung des Lichts homogen ausleuchtet.To solve the problem, the invention in conjunction with the preamble of
Der besondere Vorteil der Erfindung besteht darin, dass auf eine 90° Umlenkung des von dem Leuchtelement abgestrahlten Lichts durch das Optikelement verzichtet wird. Insofern ergibt sich eine besonders homogene Lichtverteilung in der Lichtaustrittshauptebene. Darüber hinaus kann ein guter optischer Wirkungsgrad realisiert und die Lichtverteilung durch die Verwendung des lichtbrechenden Optikelements fein justiert beziehungsweise eingestellt werden.The particular advantage of the invention is that it dispenses with a 90 ° deflection of the light emitted by the luminous element through the optical element. In this respect, a particularly homogeneous light distribution results in the light exit main plane. In addition, a good optical efficiency can be realized and the light distribution can be finely adjusted or adjusted by the use of the refractive optical element.
Nach einer bevorzugten Ausführungsform der Erfindung sind die Lichteintrittsflächen des Optikelements beziehungsweise die Lichtaustrittsflächen des Optikelements derart geformt beziehungsweise positioniert und das Leuchtelement dem Optikelement derart zugeordnet, dass von dem Leuchtelement abgestrahltes Licht und von dem Optikelement umgelenktes Licht in der Lichtaustrittshauptebene einen horizonalen Winkelbereich von -95° bis +95° in Bezug auf die Hauptabstrahlrichtung des Lichts homogen ausgeleuchtet wird und dass von dem Leuchtelement abgestrahltes Licht und von dem Optikelement umgelenktes Licht einen vertikalen Winkelbereich von -1° bis +16° zur Lichtaustrittshauptebene homogen ausleuchtet. Vorteilhaft ergibt sich in der Lichtaustrittshauptebene ein großer horizontaler Winkelbereich, welcher mehr als eine Halbebene umfasst und insofern eine vollständige Ausleuchtung der Lichtaustrittshauptebene mit einer sehr begrenzten Anzahl von Leuchtelementen ermöglicht. Auch quer zur Lichtaustrittshauptebene ist der funktional vorgegebene vertikale Winkelbereich von -1° bis +16° homogen ausgeleuchtet. Es ergibt sich insofern eine konstruktiv einfache, kostengünstige Leuchtenanordnung. Im Extremfall müssen lediglich zwei Leuchtelemente mit zugeordneten Optikelementen vorgesehen werden, um die Lichtaustrittshauptebene vollständig und entsprechend der gesetzlichen Vorgaben auszuleuchten.According to a preferred embodiment of the invention, the light entry surfaces of the optical element or the light exit surfaces of the optical element are shaped or positioned and the light element associated with the optical element such that light emitted by the light element and deflected by the optical element light in the light exit main plane a horizontal angle range of -95 ° to + 95 ° is homogeneously illuminated in relation to the main emission direction of the light and that light emitted by the luminous element and light deflected by the optical element homogeneously illuminates a vertical angle range of -1 ° to + 16 ° relative to the light exit main plane. Advantageously results in the light exit main plane is a large horizontal angle range, which comprises more than a half-plane and thus allows complete illumination of the light exit main plane with a very limited number of light elements. Also transversely to the light exit main plane of the functionally predetermined vertical angle range of -1 ° to + 16 ° is homogeneously illuminated. This results in a structurally simple, inexpensive lighting arrangement. In extreme cases, only two light elements with associated optical elements must be provided in order to illuminate the light exit main plane completely and in accordance with the legal requirements.
Grundgedanke der Erfindung ist es hierbei, das Optikelement mit der Lichteintrittsfläche und der Lichtaustrittsfläche derart zu formen und relativ zu dem Optikelement anzuordnen, dass Licht nach vorne, seitlich und teilweise auch nachhinten die durch die Leuchtelemente definierte Ebene umgelenkt beziehungsweise ausgekoppelt wird. Bei Verwendung einer Mehrzahl von Leuchtdioden werden insofern nicht ausgestrahlte Bereiche nahezu vollständig vermieden.The basic idea of the invention here is to form the optical element with the light entry surface and the light exit surface in such a way and to arrange it relative to the optical element such that light is deflected or coupled out to the front, laterally and partly also to the rear through the plane defined by the light elements. When using a plurality of light emitting diodes so far radiated areas are almost completely avoided.
Erfindungsgemäß weist das Optikelement auf einer dem Leuchtelement zugewandten Rückseite eine zur Aufnahme des Leuchtelements ausgebildete Ausnehmung auf. Eine Mantelfläche der Ausnehmung definiert hierbei die Lichteintrittsfläche des Optikelements. Vorteilhaft ergibt sich eine hohe optische Güte, wenn die Lichteintrittsfläche durch die Ausnehmung definiert ist und das Leuchtelement der Ausnehmung zugeordnet wird. Beispielsweise kann die Lichteintrittsfläche des Optikelements wenigstens abschnittsweise eben beziehungsweise konkav gekrümmt ausgebildet sein. Insbesondere kann vorgesehen sein, dass die Lichteintrittsfläche aus einer Mehrzahl von Teilflächen gebildet wird, welche aneinander anliegen und entsprechend der optischen Erfordernisse geformt sind. Eine erste Teilfläche kann beispielsweise nach Art einer Zylindermantelteilfläche im Querschnitt kreissegmentförmig gekrümmt sein. Eine zweite Teilfläche kann nach Art einer Kugelmantelfläche gänzlich gekrümmt sein. Eine dritte Teilmantelfläche kann etwa nach Art einer Kegelstumpfmantelfläche ausgebildet sein. Eine weitere Teilfläche der Lichteintrittsfläche kann beispielsweise nach Art einer Freiformfläche geometrisch beliebig gestaltet sein. Ebenso ist es möglich, eine Teilfläche der Lichteintrittsfläche eben auszubilden.According to the invention, the optical element has a recess formed on the rear side facing the luminous element for receiving the luminous element. A lateral surface of the recess defines the light entry surface of the optical element. Advantageously, a high optical quality results if the light entry surface is defined by the recess and the luminous element is assigned to the recess. For example, the light entry surface of the optical element may be designed to be flat or concave curved at least in sections. In particular, it may be provided that the light entry surface is formed from a plurality of partial surfaces, which abut each other and are shaped according to the optical requirements. A first partial surface may, for example, be curved in a circular segment shape in cross section in the manner of a cylinder jacket partial surface. A second partial surface can be completely curved in the manner of a spherical lateral surface. A third partial circumferential surface may be formed approximately in the manner of a truncated cone lateral surface. A further partial surface of the light entry surface can be designed to be geometrically arbitrary, for example, in the manner of a free-form surface. It is also possible to form a partial surface of the light entry surface flat.
Nach der Erfindung weist die Lichtaustrittsfläche wenigstens zwei optisch wirksame konvex gekrümmte Teilflächen auf. Erfindungsgemäß ist zwischen den zwei Teilflächen der Lichtaustrittsflächen eine gemeinsame Verbindungskante ausgebildet, welche sich in die Lichtaustrittshauptebene erstreckt. Vorteilhaft kann durch das Vorsehen der zwei Teilflächen eine besonders hohe Homogenität sowohl in der Lichtaustrittshauptebene als auch senkrecht dazu im Winkelbereich von -1° bis +16° erreicht werden.According to the invention, the light exit surface has at least two optically effective convexly curved partial surfaces. According to the invention, a common connecting edge is formed between the two partial surfaces of the light exit surfaces, which extends into the main light exit plane. Advantageously, by providing the two partial surfaces, a particularly high homogeneity can be achieved both in the main light exit plane and perpendicular to it in the angular range of -1 ° to + 16 °.
Um eine gleichmäßige Ausleuchtung der gesamten Lichtaustrittshauptebene zu bewirken, können erfindungsgemäß zwei gleiche Leuchtelemente und zwei den Leuchtelementen zugeordnete Optikelemente vorgesehen sein. Die Leuchtelemente und die Optikelemente sind einander derart zugeordnet, dass das Licht in zwei um 180° entgegengesetzt zueinander orientierte Hauptabstrahlrichtungen abgestrahlt wird.In order to effect a uniform illumination of the entire light exit main plane, two identical light elements and two optical elements associated with the light elements can be provided according to the invention. The light-emitting elements and the optical elements are assigned to one another in such a way that the light is emitted in two main emission directions oriented by 180 ° in opposite directions to one another.
Aus den weiteren Unteransprüchen und der nachfolgenden Beschreibung sind weitere Vorteile, Merkmale und Einzelheiten der Erfindung zu entnehmen. Dort erwähnte Merkmale können jeweils einzeln für sich oder auch in beliebiger Kombination erfindungswesentlich sein.From the other dependent claims and the following description further advantages, features and details of the invention can be found. There mentioned features may be essential to the invention individually or in any combination.
Anhand der beigefügten Zeichnungen wird die Erfindung nachfolgend näher erläutert. Es zeigen:
- Fig. 1
- eine erfindungsgemäße Umlichtleuchte mit zwei um 180° versetzt zueinander angeordneten Leuchtelemente und zwei den Leuchtelementen zugeordneten Optikelemente,
- Fig. 2
- eine dreidimensionale Darstellung des Optikelements,
- Fig. 3
- eine Aufsicht auf das Optikelement nach
Fig. 2 mit Darstellung der Lichtverteilung und - Fig. 4
- einen Querschnitt durch das Optikelement nach
Fig. 2 mit Darstellung der Lichtverteilung.
- Fig. 1
- an ambient light according to the invention with two mutually offset by 180 ° lighting elements and two optical elements associated with the lighting elements,
- Fig. 2
- a three-dimensional representation of the optical element,
- Fig. 3
- a view of the optical element according to
Fig. 2 with representation of the light distribution and - Fig. 4
- a cross section through the optical element according to
Fig. 2 with representation of the light distribution.
Eine erfindungsgemäße Leuchte nach
Die Leuchtelemente 1 sind in dem Ausführungsbeispiel der Erfindung nach Art von Leuchtdioden ausgebildet. Die Optikelemente 2 sind als lichtbeugende Optikelemente 2 realisiert. Sie sind den Leuchtelementen 1 derart zugeordnet, dass von dem Leuchtelement 1 abgestrahltes Licht in das Optikelement 2 eingekoppelt, umgelenkt und in eine Lichtaustrittshauptebene 10 abgestrahlt wird.The light-emitting
Den Aufbau des Optikelements 2 zeigt
Als weitere lichttechnisch wirksame Fläche ist eine durch zwei konvex gekrümmte Teilflächen (7.1, 7.2) gebildete Lichtaustrittsfläche 7 vorgesehen. Die zwei optisch wirksamen Teilflächen (7.1, 7.2) der Lichtaustrittsfläche 7 weisen eine gemeinsame Verbindungskante 8 auf. Die Verbindungskante 8 erstreckt sich in die Lichtaustrittshauptebene 9 der Leuchte.As a further photometrically effective surface, a
Die
Bezüglich der vertikalen Lichtverteilung zeigt
- 11
- Leuchtelementlight element
- 22
- Optikelementoptical element
- 33
- Lichtmodullight module
- 44
- Rückseiteback
- 55
- Ausnehmungrecess
- 66
- LichteintrittsflächeLight entry surface
- 6.16.1
- Teilflächesubarea
- 6.26.2
- Teilflächesubarea
- 6.36.3
- Teilflächesubarea
- 6.46.4
- Teilflächesubarea
- 77
- LichtaustrittsflächeLight-emitting surface
- 7.17.1
- Teilflächesubarea
- 7.27.2
- Teilflächesubarea
- 88th
- Verbindungskanteconnecting edge
- 99
- LichtaustrittshauptebeneLight exit principal plane
- 1010
- Hauptabstrahlrichtungmain radiation
- 1111
- horizontaler Winkelbereichhorizontal angle range
- 1212
- vertikaler Winkelbereichvertical angle range
- 1313
- Vorzugsrichtungpreferred direction
- 1414
- weiteres Leuchtelementanother light element
Claims (5)
- Omni-directional light for airfield lighting comprising- at least one luminous element (1) for emitting light,- at least one optic element (2) assigned to the luminous element (1) for deflecting the light in a light exit main plane (9),wherein the optic element (2) consists of a transparent optic body and is formed as a type of a refractive optic element (2) and comprises a light entrance surface (6) for the light emitted by the luminous element (1) and a light exit surface (7) for decoupling the light from the optic element (2) and wherein a main radiation direction (10) defined by an optical axis of the luminous element (1) extends in a light exit main plane (9) of the light deflected in the optic element (2),
wherein
the optic element has a recess (5) receiving the light entrance surface (6),
the luminous element (1) is assigned to the optic element (2) in the region of the recess,
characterized in that
the optic element has a recess (5) on a rear side (4) facing toward the luminous element (1),
wherein a shell surface of the recess (5) is formed as light entrance surface (6) of the optic element (2),
the light entrance surface (6) is formed from a plurality of partial surfaces (6.1, 6.2, 6.3, 6.4), of which respectively one partial surface is shaped as a cylinder segment shell surface (partial surface 6.1), spherical segment shell surface (partial surface 6.2), truncated cone shell surface (partial surface 6.3) or flat (partial surface 6.4), respectively,
the light exit surface is formed by two convexly curved partial surfaces (7.1, 7.2), wherein the convexly curved partial surfaces (7.1, 7.2) have a common connecting edge 8 und the connecting edge (8) extends into the light exit main plane (9) of the ambient light and
such that the light entrance surface (6) of the optic element (2) and/or the light exit surface (7) of the optic element (2) are formed and/or positioned in such a way and/or that the luminous element (1) is assigned to the optic element (2) in such a way that light emitted from the luminous element (1) and light deflected from the optical axis outwardly by the optic element (2) homogeneously illuminate a horizontal angle range (11) of -95 ° to + 95 ° with respect to the main radiation direction (10) of the light, in the light exit main plane (9). - Omni-directional light according to claim 1,
characterized in that
two luminous elements (1) and two optic elements (2) assigned to the luminous elements (1) are provided, which are arranged to each other such that light is emitted into a common light exit main plane (9) in two main radiation directions (10) which are oppositely oriented by 180°. - Omni-directional light according to one of claims 1 to 2,
characterized in that
the luminous element (1) is provided in the recess (5) of the optic element (2). - Omni-directional light according to one of claims 1 to 3,
characterized in that
for realization of a second light function, in particular a directed light radiation in a preferred direction (13), a further luminous element (14) and a further optics are provided, wherein the further luminous element (1) and/or the further optic element (2) are provided below the luminous element (1) which emits into the light exit main plane (9). - Omni-directional light according to one of claims 1 to 4,
characterized in that
a light-emitting diode is provided as a luminous element (1) and/or as a further luminous element (1).
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP13169333.5A EP2808600B1 (en) | 2013-05-27 | 2013-05-27 | Omnidirectional air field light |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP13169333.5A EP2808600B1 (en) | 2013-05-27 | 2013-05-27 | Omnidirectional air field light |
Publications (2)
Publication Number | Publication Date |
---|---|
EP2808600A1 EP2808600A1 (en) | 2014-12-03 |
EP2808600B1 true EP2808600B1 (en) | 2019-06-26 |
Family
ID=48576223
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP13169333.5A Active EP2808600B1 (en) | 2013-05-27 | 2013-05-27 | Omnidirectional air field light |
Country Status (1)
Country | Link |
---|---|
EP (1) | EP2808600B1 (en) |
Family Cites Families (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6425678B1 (en) | 1999-08-23 | 2002-07-30 | Dialight Corporation | Led obstruction lamp |
US6902291B2 (en) * | 2001-05-30 | 2005-06-07 | Farlight Llc | In-pavement directional LED luminaire |
US6932496B2 (en) | 2002-04-16 | 2005-08-23 | Farlight Llc | LED-based elevated omnidirectional airfield light |
US8662702B2 (en) * | 2009-09-08 | 2014-03-04 | Star Headlight & Lantern Co., Inc. | LED beacon |
US7192155B2 (en) | 2004-08-31 | 2007-03-20 | Siemens Airfield Solutions | Airfield edge-light utilizing a side-emitting light source |
US20060082999A1 (en) * | 2004-10-18 | 2006-04-20 | Klein W R | Refractive clamp/optic for light emitting diode |
FR2936297B1 (en) * | 2008-09-19 | 2013-11-15 | Colas Sa | STATIC ELECTROLUMINESCENT DIODE ELECTRODE GYROPHAR |
-
2013
- 2013-05-27 EP EP13169333.5A patent/EP2808600B1/en active Active
Non-Patent Citations (1)
Title |
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